grating · 2019-07-16 · Example: Nucor Grating Tru-Weld bar grating Type 19-4, 1 1/4 x 3/16...

bar gratingUSA: FiSher & LUdLow, inc. cAnAdA: FiSher & LUdLow

http://www.nucorgrating.com

NUCOR GRATING > 1-800-334-2047 (USA) • 1-800-268-6277 (Canada) • www.nucorgrating.com2

Quality People Delivering Quality Products and Services

Today’s construction projects demand the highest quality standards and at Nucor Grating, we deliver. Nucor Grating is proud to be your first choice in the North American grating market.

Our reputation for superior quality and service has rewarded us with the privilege of being specified on many of North America’s largest capital projects. Our products may be found around the world in industrial sectors such as oil and gas production, mining, water and wastewater treatment, power generation, as well as a wide variety of architectural applications.

We lead the industry with a commitment to continuous improvement in our safety and quality standards. We are ISO 9001:2008 certified and our steel grating products count towards credits under the Leadership in Energy and Environmental Design (LEED) green building program. Paramount to all of our product designs is safety. At Nucor Grating we believe that safety is not just a goal, but a lifestyle. By promoting healthy and safe living beyond the workplace, our successful team takes pride in achieving outstanding safety track records both on and off the job. This pride is apparent in the products we create and services we offer our customers.

With our strategic network of well-stocked warehouses and fabrication facilities, our products are always readily available. The friendly and knowledgeable staff in our sales, engineering, and drafting departments can take your requirements from structural drawings to detailed grating drawings and on to completely fabricated, ready-to-install grating. As we are both a manufacturer and fabricator, we offer our customers complete “One Source” responsibility for all their grating needs.

Whether supplying trench grating covers, stair treads, elevated platforms or catwalks, from the floor up, you can count on Nucor Grating to supply durable and reliable products. We thank you for your continued support in making Nucor Grating your #1 choice for grating.

introduction

www.nucorgrating.com • 1-800-268-6277 (Canada) • 1-800-334-2047 (USA) < NUCOR GRATING 3

our complete product line

bAr grAting

warrantyWe warrant all goods of our manufacture to be free from defects caused by faulty material or poor workmanship and will at our option repair or replace, without charge, or allow credit for any such goods found on examination by us to be defective under normal use and service within one year from date of shipment to the buyer, provided we are promptly notified in writing upon discovery of such defects. Goods shall not be returned to us without our consent in writing.

This warranty does not cover damage caused by improper installation, overloading, accident, neglect or harmful alterations, or repairs made by others. The buyer’s remedies with respect to defective goods shall be exclusively limited as above provided.

FibergLASS reinForced pLAStic (Frp) grAting

tru-weld® steel and stainless steel bar grating

tru-weld® heavy duty bar grating

molded frp grating pultruded frp grating

fisholow® aluminum rectangular bar grating

fisholow® aluminum i-bar grating


contents

bAr grAting

Tru-Weld® Standard Mesh Bar GratingBar Grating AnatomySteel Bar GratingCustom FabricationHow to OrderManufacturing TolerancesSteel Stair TreadsStandard Mesh Load Tables

Stainless Steel Bar Grating

Special Mesh Bar Grating Special Mesh (Metric) Special Mesh Theoretical Weights and Open Areas

Heavy Duty Bar GratingHeavy Duty Load TablesHeavy Duty Special Mesh (Metric) Heavy Duty Special Mesh

Fisholow® Aluminum Standard Mesh Bar GratingAluminum Stair TreadsAluminum Load TablesAluminum Special Mesh

FibergLASS reinForced pLAStic (Frp) grAting

Molded FRP

Pultruded FRP

grAting FAStening methodS

5

66789

101112

14

15 1617 18

19 202223

24 252628

29

30

31

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bar gratingsteel, stainless steel, and aluminum


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trU-weLd® bAr grAting

Tru-Weld bar grating is forge-welded, a system in which Nucor Grating was a pioneer. In this process the bearing bars and cross rods are permanently forged together by heat and pressure into a single unit construction, resulting in greater strength per pound than mechanical assembly methods. The twisted cross rods provide a non-slip walking surface.

For applications where extremely slippery conditions prevail, Serrated Tru-Weld offers a superior grip surface to the load bearing bars.

What does “Type 19-4” Mean?

Bar grating types are specified by bearing bar spacing followed by cross rod spacing.

In imperial measurements, bearing bar spacing is described in sixteenths of an inch. Therefore, Type 19 has bearing bar centers at 19/16 of an inch (or 1 3/16”). Type 15 has bearing bar centers at 15/16”. Type 11 is at 11/16” etc. The second number after the dash in the Type designation refers to the cross rod spacing. Cross rods are available in either 4” (standard) or 2” (special) spacings.

All bar grating Types may also be described in metric units. Again, the first number represents the bearing bar spacing on centers and the second number represents the cross rod spacing, both units measured in millimeters. Therefore, Type 30-102 Metric equals bearing bars at 30mm centers and cross rods at 102mm centers. This is the metric equivalent of Type 19-4.

Note: Although the special 2” (50mm) cross rod spacing does allow for less open space on the grating surface, it does not affect the load rating of the grating. The most economical and readily available choice for bar grating selection is Type 19-4 (Type 30-102 Metric).

bar grating anatomy

plain surface

serrated surface

standard mesh bar grating


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SteeL bAr grAting

Tru-Weld steel bar grating is the most popular product manufactured by Nucor Grating. Nearly all sizes in Standard Mesh Type 19-4 (Type 30-102 metric) are readily available in our warehouses or stocked on the shelves of our distributors.

Simplicity in design is surpassed by its versatility in usage. From mezzanines, platforms, catwalks, and stairs to fences, benches, racking shelves, and ventilation covers, Tru-Weld Steel Bar Grating is by no means limited to the industrial applications for which it was originally designed.

Available in bare steel, shop primed, or hot dip galvanized.

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custom fabricationNucor Grating is a full service grating supplier. All of our products are available in either stock panels, or fully fabricated to suit your individual requirements. Examples of fabrication include:

• Cutting to size• Providing cutouts for penetrations in grating panels• Welding banding, kick plate, or nosings to grating• Fabricating stair treads• Custom additions such as checker plate, lifting handles,

and hinges• Circular layouts and radial platforms

Our Sales, Engineering, Drafting, and Fabrication departments can take your requirements from structural drawings to detailed grating drawings and on to completely fabricated ready-to-install grating. Armed with the latest technology in computer aided design and 3-D software applications, Nucor Grating is dedicated to continuous improvement and maximizing efficiencies in the detailing process.

Many of today’s projects demand just-in-time delivery. Our experienced project managers can effectively coordinate your multi-release schedules to ensure your job site receives the grating they need, when they need it. Grating panels are piece marked and clearly identified on our supplied grating drawings for accurate field installation.

As we are both a manufacturer and fabricator of grating we can offer our customers complete “One Source” responsibility for all their grating needs.

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trU-weLd bAr grAting

When ordering or specifying Tru-Weld Bar Grating, please confirm:

• The Type of grating. Type 19-4 (Type 30-102 Metric) is Standard.

• Bar Size • Grating surface – serrated or plain top • Finish – unpainted, shop primer, or hot dip galvanized• Style and quantity of fasteners, if required.

Example: Nucor Grating Tru-Weld bar grating Type 19-4, 1 1/4 x 3/16 serrated, galvanized.

If purchasing fabricated grating, please also confirm:

• Span Direction (Direction of bearing bars)• Area to be covered and method of support • Dimensions – indicate whether your dimensions

take clearances into account• Indicate any banding, kick plate, or nosing requirements• Shipping and tagging instructions

StAndArd prActiceS

Standard quantity measurements for invoicingInvoicing area or net area for grating ordered to specific dimensions without drawings will be based on length by width of each panel, with no deductions for cutouts.

For grating supplied from a drawing, the invoicing area shall be on the basis of gross floor area measured out to out of grating, with no deductions for clearances.

Any detailing and/or fabrication of grating by Nucor Grating will conform to the ANSI/N.A.A.M.M. Standards.

Field measurementThe Seller shall not be responsible for the actual dimensions of construction work in the field, but shall be responsible for the accurate fabrication of grating and treads in accordance with plans and specifications, if applicable.

StAndArd cLeArAnceS

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how to orderstandard mesh bar grating

LoAd tAbLe inFormAtion

The load table calculations used throughout this catalogue are based on “single span” condition. The dimensions shown are for a clear, unsupported span.

*All weights will increase by 5% when galvanized.


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manufacturing tolerances

StAir treAd

Note: Length of tread is distance between outer faces of carrier plates or back to back of carrier angles.



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steel stair treads

treAd with checker pLAte noSing (StAndArd)

Tru-Weld standard treads with checker plate nosings are cost effective, durable and self-cleaning. The checker plate nosing insures maximum visibility and underfoot safety where needed most.

treAd with ALUminUm AbrASive noSing (SpeciAL order)

Cast aluminum abrasive nosings offer maximum slip resistance on the leading edge of the tread.

Note: Bolts for mounting to stringers are not included.

how to order

When ordering or specifying Tru-Weld Bar Grating Treads, please confirm:

• Type, bar size, and surface of grating• Type of nosing – checker plate is standard• Width of tread• Length of tread• Finish – unpainted, shop primer, or hot dip galvanized• Number of treads• Shipping and tagging instructions

Example: Nucor Grating Tru-Weld bar grating treads, c/w 1 1/4” x 3/16” serrated grating, checker plate nosing and standard end plates, 12 1/8” wide x 36” long, painted black, 150 pcs, tagged “Project ABC”.

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# of Bars

TrEaD WIDTH (Type 19-4 only)

“a” DImEnsIon (outer slot)

“B” DImEnsIon(Inner slot)

mETrIC(mm)

ImPErIaL (inches)

mETrIC (mm)

ImPErIaL(inches)

mETrIC (mm)

ImPErIaL(inches)

5 157 6 3/16 64 2 1/2 n/a n/a6 187 7 3/8 114 4 1/2 n/a n/a7 217 8 9/16 114 4 1/2 n/a n/a8 248 9 3/4 178 7 114 4 1/29 278 10 15/16 178 7 114 4 1/2

10 308 12 1/8 178 7 114 4 1/2

graTIng DEPTH “C” DImEnsIon “D” DImEnsIon

mETrIC(mm)

ImPErIaL (inches)

mETrIC(mm)

ImPErIaL (inches)

mETrIC (mm)

ImPErIaL(inches)

19 to 32 3/4 to 1 1/4 44 1 3/4 64 2 1/238 and up 1 1/2 and up 57 2 1/4 76 3

BEarIng Bar sIzE

maxImum LEnTH of TrEaD (Type 19-4 only)

Plain serrated

mETrIC(mm)

ImPErIaL (inches)

mETrIC(mm)

ImPErIaL (ft. & in.)

mETrIC (mm)

ImPErIaL(ft. & in.)

25 x 4.8 1 x 3/16 1040 3’ 5” 860 2’ 10”32 x 4.8 1 1/4 x 3/16 1420 4’ 8” 1270 4’ 2”38 x 4.8 1 1/2 x 3/16 1670 5’ 6” 1600 5’ 3”

Note: 1/8” (3.2mm) bearing bar not recommended.

StAndArd treAd detAiL


mAximUm recommended treAd LengthS

End Plate Depth Dimensions

End Plate Width and Hole Pattern Dimensions

For tread widths 9 3/4”, 10 15/16” & 12 1/8”, standard end plate is complete with 2 slots. See “B” dimension in chart.



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StAndArd trU-weLd – type 30 (metric)Bearing Bars: 30mm centersStock panels: 915mm nominal width x 7315mm long

BEarIng Bar sIzE (mm)

aPProx. WEIgHT (kg/m2)

LoaD/ DEfLECTIon

sPan In mILLImETrEs (mm) sECTIon moDuLus PEr 305mm of WIDTH

TYPE 30-102

TYPE 30-51 610 762 914 1067 1219 1372 1524 1676

1829

1981

2134

2286

2438

2591

2743

19 x 4.8 27.2

U 25.52 16.33 11.34 8.33 6.38 5.04

3000D 2.52 3.94 5.68 7.73 10.09 12.77C 7.78 6.22 5.18 4.44 3.89 3.46D 2.02 3.15 4.54 6.18 8.07 10.22

25 x 3.2 24.6

U 30.24 19.32 13.44 9.87 7.56 5.97 4.84 4.00 3.36

3540D 1.89 2.96 4.26 5.79 7.57 9.58 11.82 14.31 17.03C 9.22 7.37 6.14 5.27 4.61 4.10 3.69 3.35 3.07D 1.51 2.36 3.41 4.64 6.05 7.66 9.46 11.45 13.62

25 x 4.8 35.3 38.4

U 45.36 29.03 20.16 14.81 11.34 8.96 7.26 6.00 5.04

5330D 1.89 2.96 4.26 5.79 7.57 9.58 11.82 14.31 17.03C 13.83 11.06 9.22 7.90 6.91 6.14 5.53 5.03 4.61D 1.51 2.36 3.41 4.64 6.05 7.66 9.46 11.45 13.62

32 x 3.2 29.9 33.0

U 47.25 30.24 21.00 15.43 11.81 9.33 7.56 6.25 5.25 4.47 3.86

5560D 1.51 2.36 3.41 4.64 6.05 7.66 9.46 11.45 13.62 15.99 18.54C 14.40 11.52 9.60 8.23 7.20 6.40 5.76 5.24 4.80 4.43 4.11D 1.21 1.89 2.72 3.71 4.84 6.13 7.57 9.16 10.90 12.79 14.83

32 x 4.8 43.3 46.4

U 70.88 45.36 31.50 23.14 17.72 14.00 11.34 9.37 7.88 6.71 5.79

8310D 1.51 2.36 3.41 4.64 6.05 7.66 9.46 11.45 13.62 15.99 18.54C 21.60 17.28 14.40 12.34 10.80 9.60 8.64 7.86 7.20 6.65 6.17D 1.21 1.89 2.72 3.71 4.84 6.13 7.57 9.16 10.90 12.79 14.83

38 x 3.2 35.3 38.4

U 68.04 43.55 30.24 22.22 17.01 13.44 10.89 9.00 7.56 6.44 5.55 4.84 4.25 3.77 3.36

8000D 1.26 1.97 2.84 3.86 5.04 6.39 7.88 9.54 11.35 13.32 15.45 17.74 20.18 22.78 25.54C 20.74 16.59 13.83 11.85 10.37 9.22 8.30 7.54 6.91 6.38 5.93 5.53 5.18 4.88 4.61D 1.01 1.58 2.27 3.09 4.04 5.11 6.31 7.63 9.08 1.66 12.36 14.19 16.14 18.22 20.43

38 x 4.8 51.3 54.4

U 102.03 65.32 45.36 33.33 25.52 20.16 16.33 13.50 11.34 9.66 8.33 7.26 6.38 5.65 5.04

11960D 1.26 1.97 2.84 3.86 5.04 6.39 7.88 9.54 11.35 13.32 15.45 17.74 20.18 22.78 25.54C 31.11 24.89 20.74 17.78 15.55 13.83 12.44 11.31 10.37 9.57 8.89 8.30 7.78 7.32 6.91D 1.01 1.58 2.27 3.09 4.04 5.11 6.31 7.63 9.08 10.66 12.36 14.19 16.14 18.22 20.43

45 x 4.8 59.4 62.5

U 138.92 88.91 61.74 45.36 34.73 27.44 22.23 18.37 15.44 13.15 11.34 9.88 8.68 7.69 6.86

16290D 1.08 1.69 2.43 3.31 4.32 5.47 6.76 8.18 9.73 11.42 13.24 15.20 17.63 19.53 21.89C 42.34 33.87 28.23 24.20 21.17 18.82 16.94 15.40 14.11 13.03 12.10 11.29 10.59 9.96 9.41D 0.86 1.35 1.95 2.65 3.46 4.38 5.41 6.54 7.78 9.13 10.59 12.16 13.84 15.62 17.51

51 x 4.8 67.4 70.6

U 181.44 116.12 80.64 59.25 45.36 35.84 29.03 23.99 20.16 17.18 14.81 12.90 11.34 10.05 8.96

21290D 0.95 1.48 2.13 2.90 3.78 4.79 5.91 7.15 8.51 9.99 11.59 13.30 15.13 17.09 19.16C 55.30 44.24 36.87 31.60 27.65 24.58 22.12 20.11 18.43 17.02 15.80 14.75 13.83 13.01 12.29D 0.76 1.18 1.70 2.32 3.03 3.83 4.73 5.72 6.81 7.99 9.27 10.64 12.11 13.67 15.32

57 x 4.8 75.4 78.6

U 229.64 146.97 102.06 74.98 57.41 45.36 36.74 30.37 25.52 21.74 18.75 16.33 14.35 12.71 11.34

26940D 0.84 1.31 1.89 2.58 3.36 4.26 5.26 6.36 7.57 8.88 10.30 11.82 13.45 15.19 17.03C 69.99 55.99 46.66 40.00 35.00 31.11 28.00 25.45 23.33 21.54 20.00 18.66 17.50 16.47 15.55D 0.67 1.05 1.51 2.06 2.69 3.41 4.20 5.09 6.05 7.10 8.24 9.46 10.76 12.15 13.62

64 x 4.8 83.5 86.7

U 283.50 181.44 126.00 92.57 70.88 56.00 45.36 37.49 31.50 26.84 23.14 20.16 17.72 15.70 14.00

33250D 0.76 1.18 1.70 2.32 3.03 3.83 4.73 5.72 6.81 7.99 9.27 10.64 12.11 13.67 15.32C 86.41 69.13 57.61 49.38 43.21 38.41 34.56 31.42 28.80 26.59 24.69 23.04 21.60 20.33 19.20D 0.61 0.95 1.36 1.85 2.42 3.06 3.78 4.58 5.45 6.39 7.42 8.51 9.69 10.93 12.26

Loads and deflections given in this table are theoretical and are based on a maximum allowable fibre stress of 124.0 MPa. All metric dimensions are based on a “soft” conversion.

type 30 metric

METRIC LEGEND U = Safe Uniform Load (kPa)C = Safe Concentrated Load (kN/metre of grating width) D = Deflection (mm)

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Tru-Weld grating meets N.A.A.M.M. standards. *All weights will increase by 5% when galvanized.

Spans and loads in the green shaded area exceed a deflection of 6mm for uniform loads of 5kPa. Experience has shown that 6mm deflection is the maximum deflection to give pedestrian comfort, but can be exceeded for other types of loads at the discretion of the engineer.

For serrated surface, increase depth by one size.


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Spans and loads in the pink shaded area exceed a deflection of 1/4” for uniform loads of 100 lbs./sq. ft. Experience has shown that 1/4” deflection is the maximum deflection to give pedestrian comfort, but can be exceeded for other types of loads at the discretion of the engineer.


StAndArd trU-weLd – type 19Bearing Bars: 1 3/16“ centersStock panels: 3’ nominal width x 24’ long

BEarIng Bar sIzE (inches)

aPProx. WEIgHT (lbs./ft.2)

LoaD/ DEfLECTIon

sPan In fEET anD InCHEs sECTIon moDuLus PEr fooT of WIDTH

TYPE 19-4

TYPE 19-2 2’ 0” 2’ 6” 3’ 0” 3’ 6” 4’ 0” 4’ 6” 5’ 0” 5’ 6” 6’ 0”

6’ 6”

7’ 0”

7’ 6”

8’ 0”

8’ 6”

9’ 0”

3/4 x 3/16 5.58

U 533 341 237 174 133 105

0.183D 0.099 0.155 0.223 0.304 0.397 0.503C 533 426 355 305 266 237D 0.079 0.124 0.179 0.243 0.318 0.402

1 x 1/8 5.03

U 632 404 281 206 158 125 101 84 70

0.216D 0.074 0.116 0.168 0.228 0.298 0.370 0.466 0.563 0.670C 632 505 421 361 316 281 253 230 211D 0.060 0.093 0.134 0.182 0.238 0.302 0.372 0.451 0.536

1 x 3/16 7.23 7.87

U 947 606 421 309 237 187 152 125 105

0.325D 0.074 0.116 0.168 0.228 0.298 0.377 0.466 0.563 0.670C 947 758 632 541 474 421 379 344 316D 0.060 0.093 0.134 0.182 0.238 0.302 0.372 0.451 0.536

1 1/4 x 1/8 6.12 6.76

U 987 632 439 322 247 195 158 130 110 93 81

0.339D 0.060 0.093 0.134 0.182 0.238 0.302 0.372 0.451 0.536 0.629 0.730C 987 789 658 564 493 439 395 359 329 304 282D 0.048 0.074 0.107 0.146 0.191 0.241 0.298 0.360 0.429 0.504 0.584

1 1/4 x 3/16 8.87 9.51

U 1480 947 658 483 370 292 237 196 164 140 121

0.507D 0.060 0.093 0.134 0.182 0.238 0.302 0.372 0.451 0.536 0.629 0.730C 1480 1184 987 846 740 658 592 538 493 455 423D 0.048 0.074 0.107 0.146 0.191 0.241 0.298 0.360 0.429 0.504 0.584

1 1/2 x 1/8 7.23 7.87

U 1421 909 632 464 355 281 227 188 158 135 116 101 89 79 70

0.488D 0.050 0.078 0.112 0.152 0.199 0.251 0.310 0.376 0.447 0.524 0.608 0.698 0.794 0.897 1.006C 1421 1137 947 812 711 632 568 517 474 437 406 379 355 334 316D 0.040 0.062 0.089 0.122 0.159 0.201 0.248 0.300 0.358 0.420 0.487 0.559 0.636 0.718 0.804

1 1/2 x 3/16 10.51 11.15

U 2132 1364 947 696 533 421 341 282 237 202 174 152 133 118 105

0.730D 0.050 0.078 0.112 0.152 0.199 0.251 0.310 0.376 0.447 0.524 0.608 0.698 0.794 0.897 1.006C 2132 1705 1421 1218 1066 947 853 775 711 656 609 568 533 502 474D .0040 0.062 0.089 0.122 0.159 0.201 0.248 0.300 0.358 0.420 0.487 0.559 0.636 0.718 0.804

1 3/4 x 3/16 12.17 12.81

U 2901 1857 1289 947 725 573 464 384 322 275 237 206 181 161 143

0.994D 0.043 0.067 0.096 0.130 0.170 0.215 0.266 0.322 0.383 0.450 0.521 0.599 0.681 0.769 0.862C 2901 2321 1934 1658 1451 12859 1161 1055 967 893 829 774 725 683 645D 0.034 0.053 0.077 0.104 0.136 0.172 0.273 0.257 0.306 0.360 0.417 0.479 0.545 0.615 0.689

2 x 3/16 13.81 14.45

U 3789 2425 1684 1237 947 749 606 501 421 359 309 269 237 210 187

1.299D 0.037 0.058 0.084 0.114 0.149 0.189 0.233 0.282 0.335 0.393 0.456 0.524 0.596 0.673 0.754C 3789 3032 2326 2165 1895 1684 1516 1378 1263 1166 1083 1011 947 892 842D 0.030 0.047 0.067 0.091 0.119 0.151 0.186 0.225 0.268 0.315 0.365 0.419 0.477 0.538 0.603

2 1/4 x 3/16 15.45 16.09

U 4796 3069 2132 1566 1199 947 767 634 533 454 392 341 300 266 237

1.644D 0.033 0.052 0.074 0.101 0.132 0.168 0.207 0.250 0.298 0.350 0.406 0.466 0.530 0.598 0.670C 4796 3837 3197 2741 2398 2132 1918 1744 1599 1476 1370 1279 1199 1128 1066D 0.026 0.041 0.060 0.081 0.106 0.134 0.166 0.200 0.238 0.280 0.324 0.372 0.424 0.478 0.536

2 1/2 x 3/16 17.11 17.75

U 5921 3789 2632 1933 1480 1170 947 783 658 561 483 421 370 328 292

2.029D 0.030 0.047 0.067 0.091 0.119 0.151 0.186 0.225 0.268 0.315 0.365 0.419 0.477 0.538 0.603C 5921 4737 3947 3383 2961 2632 2386 2153 1974 1822 1692 1579 1480 1393 1316D 0.024 0.037 0.054 0.073 0.095 0.121 0.149 0.180 0.215 0.252 0.292 0.335 0.381 0.431 0.483

Loads and deflections given in this table are theoretical and are based on a maximum allowable fibre stress of 18,000 P.S.I.

type 19

IMPERIAL LEGEND U = Safe Uniform Load (lbs./ft.2)C = Safe Concentrated Load (lbs./foot of grating width) D = Deflection (inches)


Tru-Weld grating meets N.A.A.M.M. standards. *All weights will increase by 5% when galvanized.

Spans and loads in the green shaded area exceed a deflection of 1/4” for uniform loads of 100 lbs/sq. ft. Experience has shown that 1/4” deflection is the maximum deflection to give pedestrian comfort, but can be exceeded for other types of loads at the discretion of the engineer.



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trU-weLd StAinLeSS SteeL bAr grAting

Tru-Weld Stainless Steel Bar Grating provides a long-term durable grating solution for caustic atmospheres where corrosion resistance and minimum carbide precipitation are important considerations. Typical applications include stairs and platforms within chemical production and storage, food processing plants, and water and wastewater treatment facilities. Your choice of 304, 304L, 316, or 316L Stainless Steel grades are available.

Heat from the Electroforge welding process discolors the surface of the stainless steel in the weld area. For this reason, Tru-Weld Stainless Steel Bar Grating is best suited for industrial uses where cosmetic appearance is not a factor.

sTaInLEss sTEEL graDE LoaD/DEfLECTIon muLTIPLY CarBon sTEEL LoaD TaBLEs BY: BasED on maxImum aLLoWaBLE fIBrE sTrEss

304 Stainless Steel

U 1.11120,000 P.S.I. (137.9 MPa)C 1.111

D 1.151

304L Stainless Steel

U 0.91716,500 P.S.I. (113.8 MPa)C 0.917

D 0.949

316 Stainless Steel

U 1.11120,000 P.S.I. (137.9 MPa)C 1.111

D 1.151

316L Stainless Steel

U 0.91716,500 P.S.I. (113.8 MPa)C 0.917

D 0.949

stainless steel information



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stainless steel bar grating

StAinLeSS SteeL converSion FActorS When considering load conditions for stainless steel bar grating, please apply the calculations in the table below to the values shown in the carbon steel load tables on pages 12 and 13.



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Special M

esh

special mesh information

trU-weLd SpeciAL meSh bAr grAting

Tru-Weld Special Mesh Bar Grating offer a variety of close or wide space mesh options to suit specific aesthetic or functional bar spacing requirements.

As with Tru-Weld Standard Mesh Bar Grating, Special Mesh Bar Grating may be ordered with either plain or serrated bearing bars. Similarly, panels are manufactured with a standard 4” cross rod spacing but 2” cross rod spacing is available.

Close MeshAdvantages of the close mesh grating style include greatly increased load bearing capabilities and prevention of fall through by dangerous objects such as heavy tools or equipment accidentally dropped from above.

Wide MeshWide mesh grating options are designed for applications requiring additional openness of bar grating to minimize buildup of snow, ice, or other debris.

Available in most 1/8” and 3/16” Steel and Stainless Steel bar sizes and select Heavy Duty bar sizes.

*Special Mesh Bar Grating is a non-stocked specialty item. For the most cost effective and readily available bar grating option, choose Standard Mesh Type 19-4 (Type 30-102 Metric).

special mesh bar grating

wide meshclose mesh



Ba

r g

ra

tin

g

type 18 metricADA Compatible with 4.8mm bars XMultiply load values by 1.72 as per table on page 12.

type 24 metricMultiply load values by 1.25 as per table on page 12.

SpeciAL wide meSh (metric)Deflections as per table on page 12.




Dimensions shown are out to out of bearing bars.For 3.2mm bearing bars, deduct 1.6mm from panel width.All metric dimensions are based on a “soft” conversion.

mETrIC PanEL WIDTH In mILLImETrEs (for 4.8mm bearing bars)

# of Bars

CLosE mEsH sTanDarD mEsH

WIDE mEsH

TYPE 18 mETrIC

TYPE 24mETrIC

TYPE 30 mETrIC

TYPE 41 mETrIC

TYPE 48 mETrIC

TYPE 60 mETrIC

2 22 28 35 46 52 653 40 52 65 87 100 1254 57 76 95 129 148 1865 75 100 125 170 195 2466 92 124 156 211 243 3067 110 148 186 252 291 3678 127 171 216 294 338 4279 144 195 246 335 386 487

10 162 219 276 381 433 54811 179 243 306 418 481 60812 197 267 337 459 529 66813 214 291 367 500 576 72914 232 314 397 541 624 78915 249 338 427 583 683 84916 267 362 457 624 719 91017 284 386 487 665 767 18 302 410 518 706 814 19 319 433 548 748 862 20 337 457 578 789 910 21 354 481 608 830 22 371 505 638 872 23 389 529 668 913 24 406 552 698 25 424 576 729 26 441 600 759 27 459 624 789 28 476 648 819 29 494 672 849 30 511 695 879 31 529 719 910 32 546 743 33 564 767 34 581 790 35 598 814 36 615 838 37 862 38 886 39 910 40 41

special mesh (metric)

Spec

ial M

esh



SpeciAL cLoSe meSh (metric)Deflections as per table on page 12.



ba

r g

ra

ting

Special M

esh

ImPErIaL PanEL WIDTH In InCHEs (for 3/16” bearing bars)

# of Bars

CLosE mEsH sTanDarD mEsH

WIDE mEsH

TYPE 11

TYPE 15

TYPE 19

TYPE 26

TYPE 30

TYPE 38

2 7/8 1 1/8 1 3/8 1 27/32 2 1/16 2 9/163 1 9/16 2 1/16 2 9/16 3 15/32 3 15/16 4 15/164 2 1/4 3 3 3/4 5 3/32 5 13/16 7 5/165 2 15/16 3 15/16 4 15/16 6 23/32 7 11/16 9 11/166 3 5/8 4 7/8 6 1/8 8 11/32 9 9/16 12 1/167 4 5/16 5 13/16 7 5/16 9 31/32 11 7/16 14 7/168 5 6 3/4 8 1/2 11 19/32 13 5/16 16 13/169 5 11/16 7 11/16 9 11/16 13 7/32 15 3/16 19 3/1610 6 3/8 8 5/8 10 7/8 14 27/32 17 1/16 21 9/1611 7 1/16 9 9/16 12 1/16 16 15/32 18 15/16 23 15/1612 7 3/4 10 1/2 13 1/4 18 3/32 20 13/16 26 5/1613 8 7/16 11 7/16 14 7/16 19 23/32 22 11/16 28 11/1614 9 1/8 12 3/8 15 5/8 21 11/32 24 9/16 31 1/1615 9 13/16 13 5/16 16 13/16 22 31/32 26 7/8 33 7/1616 10 1/2 14 1/4 18 24 19/32 28 5/16 35 13/1617 11 3/16 15 3/16 19 3/16 26 7/32 30 3/16 18 11 7/8 16 1/8 20 3/8 27 27/32 32 1/16 19 12 9/16 17 1/16 21 9/16 29 15/32 33 15/16 20 13 1/4 18 22 3/4 31 3/32 35 13/16 21 13 15/16 18 15/16 23 15/16 32 23/32 22 14 5/8 19 7/8 25 1/8 34 11/32 23 15 5/16 20 13/16 26 5/16 35 31/32 24 16 21 3/4 27 1/2 25 16 11/16 22 11/16 28 11/16 26 17 3/8 23 5/8 29 7/8 27 18 1/16 24 9/16 31 1/16 28 18 3/4 25 1/2 32 1/4 29 19 7/16 26 7/16 33 7/16 30 20 1/8 27 3/8 34 5/8 31 20 13/16 28 5/16 35 13/16 32 21 1/2 29 1/4 33 22 3/16 30 3/16 34 22 7/8 31 1/8 35 23 9/16 32 1/16 36 24 1/4 33 37 33 15/16 38 34 7/8 39 35 13/16 40 41

Dimensions shown are out to out of bearing bars.For 1/8” bearing bars, deduct 1/16” from panel width.

special meshspecial mesh bar grating

type 11ADA Compatible with 3/16” bars XMultiply load values by 1.72 as per table on page 13.

type 15Multiply load values by 1.25 as per table on page 13.

SpeciAL wide meShDeflections as per table on page 13.





SpeciAL cLoSe meSh Deflections as per table on page 13.



Ba

r g

ra

tin

gSp

ecia

l Mes

h

theoretical weights and open areasAll metric dimensions are based on a “soft” conversion.


mETrIC WEIgHTs (kg/m2)


sPECIaL CLosE mEsH sTanDarD mEsH sPECIaL WIDE mEsH

TYPE 15-51

TYPE 18-102

TYPE 18-51

TYPE 24-102

TYPE 24-51

TYPE 30-102

TYPE 30-51

TYPE 41-102

TYPE 41-51

TYPE 48-102

TYPE 48-61

TYPE 60-102

TYPE 60-51

19 x 4.8 54.39 44.67 47.80 33.49 36.42 27.24 30.37 n/a n/a 18.02 20.51 15.33 17.7725 x 3.2 49.07 40.09 43.16 30.12 33.10 24.56 27.68 19.19 n/a 16.26 18.75 13.87 16.3125 x 4.8 70.55 58.64 61.71 42.72 46.68 35.30 38.43 27.49 n/a 23.19 25.68 19.58 22.0232 x 3.2 59.76 49.31 52.39 36.91 39.89 29.88 33.01 23.34 n/a 19.73 22.17 16.70 19.1432 x 4.8 86.62 72.46 75.53 53.80 56.78 43.31 46.43 33.74 n/a 28.37 30.86 23.83 26.3238 x 3.2 70.55 58.64 61.71 43.75 46.73 35.30 38.43 27.49 n/a 23.19 25.68 19.58 22.0238 x 4.8 102.63 86.27 89.40 65.62 70.21 51.31 54.44 39.94 n/a 34.23 37.35 28.81 31.9344 x 4.8 119.18 100.58 103.65 76.07 80.66 59.42 62.54 46.14 n/a 40.67 44.87 34.27 38.5251 x 4.8 135.34 114.49 117.57 86.27 90.86 67.43 70.55 52.34 n/a 45.90 50.09 38.57 42.8257 x 4.8 150.48 127.53 130.65 95.84 100.43 75.43 78.56 58.59 n/a 50.78 54.98 42.62 46.8264 x 4.8 166.64 141.49 144.57 106.05 110.64 83.54 86.66 64.74 n/a 55.95 60.20 46.92 51.12

ImPErIaL WEIgHTs (lbs/ft2)


sPECIaL CLosE mEsH sTanDarD mEsH sPECIaL WIDE mEsH

TYPE 9.5-2 TYPE 11-4 TYPE 11-2 TYPE 15-4 TYPE 15-2 TYPE 19-4 TYPE 19-2 TYPE 26-4 TYPE 26-2 TYPE 30-4 TYPE 30-2 TYPE 38-4 TYPE 38-2

3/4 x 3/16 11.14 9.15 9.79 6.86 7.46 5.58 6.22 n/a n/a 3.69 4.20 3.14 3.641 x 1/8 10.05 8.21 8.84 6.17 6.78 5.03 5.67 3.93 n/a 3.33 3.84 2.84 3.34

1 x 3/16 14.45 12.01 12.64 8.75 9.56 7.23 7.87 5.63 n/a 4.75 5.26 4.01 4.511 1/4 x 1/8 12.24 10.10 10.73 7.56 8.17 6.12 6.76 4.78 n/a 4.04 4.54 3.42 3.92

1 1/4 x 3/16 17.74 14.84 15.47 11.02 11.63 8.87 9.51 6.91 n/a 5.81 6.32 4.88 5.391 1/2 x 1/8 14.45 12.01 12.64 8.96 9.57 7.23 7.87 5.63 n/a 4.75 5.26 4.01 4.51

1 1/2 x 3/16 21.02 17.67 18.31 13.44 14.38 10.51 11.15 8.18 n/a 7.01 7.65 5.90 6.541 3/4 x 3/16 24.41 20.60 21.23 15.58 16.52 12.17 12.81 9.45 n/a 8.33 9.19 7.02 7.89

2 x 3/16 27.72 23.45 24.08 17.67 18.61 13.81 14.45 10.72 n/a 9.40 10.26 7.90 8.772 1/4 x 3/16 30.82 26.12 26.76 19.63 20.57 15.45 16.09 12.00 n/a 10.40 11.26 8.73 9.592 1/2 x 3/16 34.13 28.98 29.61 21.72 22.66 17.11 17.75 13.26 n/a 11.46 12.33 9.61 10.47

ImPErIaL oPEn arEa


sPECIaL CLosE mEsH

sTanDarD mEsH sPECIaL WIDE mEsH

TYPE 11 TYPE 15 TYPE 19 TYPE 26 TYPE 30 TYPE 382” Cross roDs

1/8 74% 77% 78% 81% 82% 83%3/16 64% 70% 74% 78% 79% 81%

4” Cross roDs1/8 78% 82% 84% 87% 88% 89%3/16 68% 75% 79% 83% 84% 86%

mETrIC oPEn arEa


sPECIaL CLosE mEsH

sTanDarD mEsH sPECIaL WIDE mEsH

TYPE 18 TYPE 24 TYPE 30 TYPE 41 TYPE 48 TYPE 60

51mm Cross roDs3.2mm 74% 77% 79% 81% 82% 83%4.8mm 64% 70% 74% 78% 79% 81%

102mm Cross roDs3.2mm 78% 82% 84% 87% 88% 89%4.8mm 68% 75% 79% 83% 84% 86%

rAiLroAd grAting

Tru-Weld Steel Railroad Grating is special wide mesh Type 26-4 (Type 41-102 Metric) with bearing bars supplied serrated for additional safety. It was originally designed specifically for use as brake steps, running boards, walkways, and platforms on railcars and locomotives. Railroad Grating is supplied as standard AAR (Association of American Railroads) approved welded bar grating with bar spacing at 1 5/8” centers and cross rods at 4” centers.



ba

r g

ra

ting

heavy duty information

heAvy-dUty SteeL bAr grAting

Steel Bar Grating with bearing bars thicker than 3/16” is considered to be “Heavy Duty” and carries the designation prefix “Type HD”. Available bar thicknesses are 1/4” and 3/8” in either a plain or serrated surface. Standard depths range from 1” up to 4”, although larger sizes are available upon request.

Tru-Weld Heavy Duty Steel Bar Grating is commonly used for floor trench and sump covers exposed to heavy equipment traffic. It is used extensively throughout mining, power generation, highways, airfields, and on truck terminal loading docks and ramps. It is suitable for large single span conditions or where grating must support extreme loads.

Heavy D

uty

heavy duty bar grating


*For serrated surface, the load carrying capacity would be minimized.


Ba

r g

ra

tin

g

heAvy dUty trU-weLd – type hd-30 (metric)Bearing Bars: 30mm centersPanel Sizes: 914mm nomimal width x 6096mm long for 6.4mm only 610mm nomimal width x 6096mm long for 9.5mm

Loads and deflections given in this table are theoretical and are based on a maximum allowable fibre stress of 137.9 MPa. All metric dimensions are based on a “soft” conversion.

type hd-30 metric

METRIC LEGEND U = Safe Uniform Load (kPa)C = Safe Concentrated Load (kN/metre of grating width)

Hea

vy D

uty

Tru-Weld grating meets N.A.A.M.M. standards.



LoaD/ DEfLECTIon

sPan In mILLImETrEs (mm) sECTIon moDuLus PEr 305mm of WIDTH

TYPE 30-102

TYPE 30-51 305 457 610 762 914 1067 1219 1372

1524

1676

1829

1981

2134

2286

2438

25 x 6.4 47.0 51.3 U 268 120 67 43 30 22 17 13 11 9 7 6 5 5 4 6900C 41 27 20 16 14 12 10 9 8 7 7 6 6 5 5

25 x 9.5 68.0 72.7 U 403 179 101 65 45 33 25 20 16 13 11 10 8 7 6 10350C 61 41 31 25 20 18 15 14 12 11 10 9 9 8 8

32 x 6.4 58.0 62.0 U 419 187 105 67 47 34 26 21 17 14 12 10 9 7 7 10780C 64 43 32 26 21 18 16 14 13 12 11 10 9 9 8

32 x 9.5 84.0 88.9 U 629 280 157 101 70 51 39 31 25 21 17 15 13 11 10 16170C 96 64 48 38 32 27 24 21 19 17 16 15 14 13 12

38 x 6.4 68.0 72.7 U 604 269 151 97 67 49 38 30 24 20 17 14 12 11 9 15520C 92 61 46 37 31 26 23 20 18 17 15 14 13 12 12

38 x 9.5 100.0 105.0 U 906 404 227 145 101 74 57 45 36 30 25 21 19 16 14 23300C 138 92 69 55 46 39 35 31 28 25 23 21 20 18 17

44 x 6.4 79.0 83.5 U 822 366 206 132 92 67 51 41 33 27 23 19 17 15 13 21100C 125 84 63 50 42 36 31 28 25 23 21 19 18 17 16

44 x 9.5 116.0 121.1 U 1233 549 308 198 137 101 77 61 49 41 34 29 25 22 19 31700C 188 126 94 75 63 54 47 42 38 34 31 29 27 25 24

51 x 6.4 89.0 94.7 U 1074 478 268 172 120 88 67 53 43 36 30 25 22 19 17 27600C 164 109 82 66 55 47 41 36 33 30 27 25 23 22 20

51 x 9.5 131.0 137.2 U 1611 717 403 258 179 132 101 80 65 53 45 38 33 29 25 41400C 246 164 123 98 82 70 61 55 49 45 41 38 35 33 31

57 x 6.4 100.0 116.2 U 1359 605 340 218 151 111 85 67 54 45 38 32 28 24 21 34900C 207 138 104 83 69 59 52 46 41 38 35 32 30 28 26

57 x 9.5 147.0 169.4 U 2039 908 510 327 227 167 128 101 82 68 57 48 42 36 32 52400C 311 207 155 124 104 89 78 69 62 57 52 48 44 41 39

64 x 6.4 110.0 116.2 U 1678 747 419 269 187 137 105 83 67 56 47 40 34 30 26 43100C 256 171 128 102 85 73 64 57 51 47 43 39 37 34 32

64 x 9.5 163.0 169.4 U 2517 1121 629 403 280 206 158 124 101 83 70 60 51 45 39 64700C 384 256 192 154 128 110 96 85 77 70 64 59 55 51 48

76 x 6.4 131.0 137.7 U 2416 1076 604 387 269 197 151 119 97 80 67 57 49 43 38 62100C 368 246 184 147 123 105 92 82 74 67 61 57 53 49 46

76 x 9.5 194.0 201.1 U 3624 1614 906 581 404 296 227 179 145 120 101 86 74 65 57 93100C 553 369 276 221 184 158 138 123 111 101 92 85 79 74 69

89 x 6.4 152.0 159.2 U 3289 1465 822 527 366 269 206 163 132 109 91 78 67 59 51 84500C 502 335 251 201 167 143 125 111 100 91 84 77 72 67 63

89 x 9.5 226.0 233.4 U 4933 2197 1233 790 549 403 309 244 198 163 137 117 101 88 77 126800C 752 502 376 301 251 215 188 167 151 137 125 116 108 100 94

102 x 6.4 173.0 193.8 U 4295 1913 1074 688 478 351 269 212 172 142 119 102 88 76 67 110400C 655 437 328 262 219 187 164 146 131 119 109 101 94 87 82

102 x 9.5 257.0 279.3 U 6443 2870 1611 1032 717 526 403 318 258 213 179 153 132 115 101 165600C 983 656 491 393 328 281 246 218 197 179 164 151 140 131 123




ba

r g

ra

ting

heAvy dUty trU-weLd – type hd-19Bearing Bars: 1 3/16“ centersPanel Sizes: 3’ 0” nomimal width x 20’ for 1/4” only 2’ 0” nomimal width x 20’ for 3/8” only

Loads and deflections given in this table are theoretical and are based on a maximum allowable fibre stress of 20,000 P.S.I.

type hd-19

IMPERIAL LEGEND U = Safe Uniform Load (lbs./ft.2)C = Safe Concentrated Load (lbs./foot of grating width) H

eavy Du

ty

Tru-Weld grating meets N.A.A.M.M. standards.


aPProx. WEIgHT (lbs./ft2)

LoaD/ DEfLECTIon

sPan In fEET anD InCHEs sECTIon moDuLus PEr fooT of WIDTH

TYPE 19-4

TYPE 19-2 1’ 0” 1’ 6” 2’ 0” 2’ 6” 3’ 0” 3’ 6” 4’ 0” 4’ 6” 5’ 0” 5’ 6” 6’ 0”

6’ 6”

7’ 0”

7’ 6”

8’ 0”

1 x 1/4 9.4 10.5 U 5613 2495 1403 898 624 458 351 277 225 186 156 133 115 100 88 0.432C 2807 1871 1403 1123 936 802 702 624 561 510 468 432 401 374 351

1 x 3/8 13.8 14.9 U 8427 3745 2107 1348 936 688 527 416 337 279 234 199 172 150 132 0.646C 4213 2809 2107 1685 1404 1204 1053 936 843 766 702 648 602 562 527

1 1/4 x 1/4 11.6 12.7 U 8773 3899 2193 1404 975 716 548 433 351 290 244 208 179 156 137 0.675C 4387 2924 2193 1755 1462 1253 1097 975 877 798 731 675 627 585 548

1 1/4 x 3/8 17.1 18.2 U 13160 5849 3290 2106 1462 1074 823 650 526 435 366 311 269 234 206 1.009C 6580 4387 3290 2632 2193 1880 1645 1462 1316 1196 1097 1012 940 877 823

1 1/2 x 1/4 13.8 14.9 U 12627 5612 3157 2020 1403 1031 789 624 505 417 351 299 258 224 197 0.972C 6313 4209 3157 2525 2104 1804 1578 1403 1263 1148 1052 971 902 842 789

1 1/2 x 3/8 20.4 21.5 U 18947 8421 4737 3031 2105 1547 1184 936 758 626 526 448 387 337 296 1.453C 9473 6316 4737 3789 3158 2707 2368 2105 1895 1722 1579 1457 1353 1263 1184

1 3/4 x 1/4 16.0 17.1 U 17187 7639 4297 2750 1910 1403 1074 849 687 568 477 407 351 306 269 1.323C 8593 5729 4297 3437 2864 2455 2148 1910 1719 1562 1432 1322 1228 1146 1074

1 3/4 x 3/8 23.7 24.8 U 25787 11461 6447 4126 2865 2105 1612 1273 1031 852 716 610 526 458 403 1.978C 12893 8596 6447 5157 4298 3684 3223 2865 2579 2344 2149 1984 1842 1719 1612

2 x 1/4 18.3 19.4 U 22453 9979 5613 3593 2495 1833 1403 1109 898 742 624 531 458 399 351 1.728C 11227 7484 5613 4491 3742 3208 2807 2495 2245 2041 1871 1727 1604 1497 1403

2 x 3/8 27.0 28.1 U 33680 14969 8420 5389 3742 2749 2105 1663 1347 1113 936 797 687 599 526 2.583C 16840 11227 8420 6736 5613 4811 4210 3742 3368 3062 2807 2591 2406 2245 2105

2 1/4 x 1/4 20.5 21.6 U 28427 12634 7107 4548 3159 2321 1777 1404 1137 940 790 673 580 505 444 2.700C 14213 9476 7107 5685 4738 4061 3553 3159 2843 2584 2369 2187 2030 1895 1777

2 1/4 x 3/8 30.1 31.3 U 42627 18945 10657 6820 4736 3480 2664 2105 1705 1409 1184 1009 870 758 666 4.036C 21313 14209 10657 8525 7104 6090 5328 4736 4263 3875 3552 3279 3045 2842 2664

2 1/2 x 1/4 22.7 23.8 U 35093 15597 8773 5615 3899 2865 2193 1733 1404 1160 975 831 716 624 548 2.700C 17547 11698 8773 7019 5849 5013 4387 3899 359 3190 2924 2699 2507 2340 2193

2 1/2 x 3/8 33.6 34.7 U 52627 23390 13157 8420 5847 4296 3289 2599 2105 1740 1462 1246 1074 936 822 4.036C 26313 17542 13157 10525 8771 7518 6578 5847 5263 4784 4386 4048 3759 3508 3289

3 x 1/4 27.1 28.2 U 50520 22453 12630 8083 5613 4124 3158 2495 2021 1670 1403 1196 1031 898 789 3.889C 25260 16840 12630 10104 8420 7217 6315 5613 5052 4593 4210 3886 3609 3368 3158

3 x 3/8 40.1 41.2 U 75787 33683 18947 12126 8421 6187 4737 3743 3031 2505 2105 1794 1547 1347 1184 5.813C 37893 25262 18947 15157 12631 10827 9473 8421 7579 6890 6316 5830 5413 5052 4737

3 1/2 x 1/4 31.5 32.6 U 68773 30566 17193 11004 7641 5614 4298 3396 2751 2273 1910 1628 1404 1223 1075 5.293C 34387 22924 17193 13755 11462 9825 8597 7641 6877 6252 5731 5290 4912 4585 4298

3 1/2 x 3/8 46.7 47.8 U 103160 45849 25790 16506 11462 8421 6448 5094 4126 3410 2866 2442 2105 1834 1612 7.911C 51580 34387 25790 20632 17193 14737 12895 11462 10316 9378 8597 7935 7369 6877 6448

4 x 1/4 38.6 39.7 U 89827 39923 22457 14372 9981 7333 5614 4436 3593 2969 2495 2126 1833 1597 1404 7.000C 44913 29942 22457 17965 14971 12832 11228 9981 8983 8166 7486 6910 6416 5988 5614

4 x 3/8 56.1 57.2 U 134733 59881 33683 21557 14970 10999 8421 6653 5389 4454 3743 3189 2750 2395 2105 10.446C 67367 44911 33683 26947 22456 19248 16842 14970 13473 12248 11228 10364 9624 8982 8421




Ba

r g

ra

tin

gH

eavy

Du

ty Deflections as per table on page 20. Dimensions shown are out to out of bearing bars. All metric dimensions are based on a “soft” conversion.

mETrIC PanEL WIDTH In mILLImETrEs

# of Bars

CLosE mEsH TYPE HD-24 mETrIC

sTanDarD mEsH TYPE HD-30 mETrIC

WIDE mEsH TYPE HD-35 mETrIC



6mm Bar

9.5mm Bar

6mm Bar

9.5mm Bar

6mm Bar

9.5mm Bar

6mm Bar

9.5mm Bar

6mm Bar

9.5mm Bar

2 30 n/a 37 40 41 44 54 57 67 703 54 n/a 67 70 76 79 102 105 127 1304 78 n/a 97 100 111 114 149 152 187 1915 102 n/a 127 130 146 149 197 200 248 2516 125 n/a 157 160 181 184 244 248 308 3117 149 n/a 187 191 216 219 292 295 368 3718 173 n/a 217 221 251 254 340 343 429 4329 197 n/a 248 251 286 289 387 391 489 492

10 221 n/a 278 281 321 324 435 438 549 55211 244 n/a 308 311 356 359 482 486 610 61312 268 n/a 338 341 391 394 530 533 670 13 292 n/a 368 371 425 429 578 581 730 14 316 n/a 398 402 460 464 625 629 791 15 340 n/a 429 432 495 499 673 851 16 364 n/a 459 462 530 534 721 911 17 387 n/a 489 492 565 569 768 18 411 n/a 519 522 600 604 816 19 435 n/a 549 552 635 864 20 458 n/a 579 582 670 911 21 483 n/a 610 613 70522 506 n/a 640 74023 530 n/a 670 77524 554 n/a 700 81025 578 n/a 730 84526 602 n/a 760 87927 791 91428 821 29 851 30 881 31 911

heavy duty special mesh (metric)

type hd-35 metric Multiply load values by 0.86 as per table on page 20.

type hd-48 metricMultiply load values by 0.63 as per table on page 20.

type hd-60 metricMultiply load values by 0.50 as per table on page 20.


heAvy dUty cLoSe meSh (metric)type hd-24 metric Multiply load values by 1.25 as per table on page 20.

heAvy dUty wide meSh (metric)




ba

r g

ra

ting

Deflections as per table on page 21. Dimensions shown are out to out of bearing bars.

ImPErIaL PanEL WIDTH In InCHEs

# of Bars

CLosE mEsH TYPE HD-15

sTanDarD mEsH TYPE HD-19

WIDE mEsH TYPE HD-22



1/4 Bar

3/8 Bar

1/4 Bar

3/8 Bar

1/4 Bar

3/8 Bar

1/4 Bar

3/8 Bar

1/4 Bar

3/8 Bar

2 1 3/16 n/a 1 7/16 1 9/16 1 5/8 1 3/4 2 1/8 2 1/4 2 5/8 2 3/43 2 1/8 n/a 2 5/8 2 3/4 3 3 1/8 4 4 1/8 5 5 1/84 3 1/16 n/a 3 13/16 3 15/16 4 3/8 4 1/2 5 7/8 6 7 3/8 7 1/25 4 n/a 5 5 1/8 5 3/4 5 7/8 7 3/4 7 7/8 9 3/4 9 7/86 4 15/16 n/a 6 3/16 6 5/16 7 1/8 7 1/4 9 5/8 9 3/4 12 1/8 12 1/47 5 7/8 n/a 7 3/8 7 1/2 8 1/2 8 5/8 11 1/2 11 5/8 14 1/2 14 5/88 6 13/16 n/a 8 9/16 8 11/16 9 7/8 10 13 3/8 13 1/2 16 7/8 179 7 3/4 n/a 9 3/4 9 7/8 11 1/4 11 3/8 15 1/4 15 3/8 19 1/4 19 3/8

10 8 11/16 n/a 10 15/16 11 1/16 12 5/8 12 3/4 17 1/8 17 1/4 21 5/8 21 3/411 9 5/8 n/a 12 1/8 12 1/4 14 14 1/8 19 19 1/8 24 24 1/812 10 9/16 n/a 13 5/16 13 7/16 15 3/8 15 1/2 20 7/8 21 26 3/8 13 11 1/2 n/a 14 1/2 14 5/8 16 3/4 16 7/8 22 3/4 22 7/8 28 3/4 14 12 7/16 n/a 15 11/16 15 13/16 18 1/8 18 1/4 24 5/8 24 3/4 31 1/8 15 13 3/8 n/a 16 7/8 17 19 1/2 19 5/8 26 1/2 33 1/2 16 14 5/16 n/a 18 1/16 18 3/16 20 7/8 21 28 3/8 35 7/8 17 15 1/4 n/a 19 1/4 19 3/8 22 1/4 22 3/8 30 1/4 18 16 3/16 n/a 20 7/16 20 9/16 23 5/8 23 3/4 32 1/8 19 17 1/8 n/a 21 5/8 21 3/4 25 34 20 18 1/16 n/a 22 13/16 22 15/16 26 3/8 35 7/8 21 19 n/a 24 24 1/8 27 3/422 19 15/16 n/a 25 3/16 29 1/823 20 7/8 n/a 26 3/8 30 1/224 21 13/16 n/a 27 9/16 31 7/825 22 3/4 n/a 28 3/4 33 1/426 23 11/16 n/a 29 15/16 34 5/827 31 1/8 3628 32 5/16 29 33 1/2 30 34 11/16 31 35 7/8

heavy duty special mesh

Heavy D

uty


type hd-22Multiply load values by 0.86 as per table on page 21.



heAvy dUty cLoSe meShtype hd-15 Multiply load values by 1.25 as per table on page 21.

heAvy dUty wide meSh




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aluminum information

FiShoLow® rectAngULAr And i-bAr grAting

Fisholow Aluminum Bar Gratings employ a unique interlocking system that joins the bearing bars and cross rods together in panels of exceptional rigidity and strength. Lightweight, corrosion-resistant, non-sparking alloys are ideal for pedestrian platforms in chemical, petroleum, and food processing plants. Fisholow gratings is recommended in most water and waste water treatment facilities and is becoming increasingly popular for use in architectural building designs.

Fisholow Aluminum Bar Grating is available in two bar profiles: Rectangular Bar and I-bar. Similar to Tru-Weld Steel Bar Grating, Fisholow Rectangular Bar Grating is offered with a plain or serrated surface. Fisholow I-Bar Grating produces exceptional load ratings at a fraction of the weight of its rectangular counterpart, and is designed with a slip resistant corrugated surface on the top of each I-bar.

Both Rectangular Bar and I-Bar styles are available in special mesh options.

rectangular bar

i-bar

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aluminum standard mesh bar grating


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aluminum stair treads

ALUminUm treAd with corrUgAted AngLe noSing (StAndArd)

Fisholow treads with standard corrugated angle nosing are strong, lightweight, and self-cleaning. They are ideal for applications requiring corrosion resistance, non-sparking, and rust proof grating. The corrugated angle nosing insures maximum visibility and underfoot safety where needed most.

ALUminUm treAd with ALUminUm AbrASive noSing (SpeciAL order)

The optional cast aluminum abrasive nosing offers a superior slip resistance on the leading edge of the tread.

Note: Bolts for mounting to stringers are not included.

how to order

When ordering or specifying Fisholow treads, please confirm:

• Type, bar size, and surface of grating• Type of nosing – corrugated angle nosing is standard• Width of tread• Length of tread• Number of treads• Shipping and tagging instructions

Example: Nucor Grating Fisholow treads, c/w 1 1/4” x 3/16” serrated rectangular-bar aluminum bar grating, corrugated angle nosing and standard end plates, 12 1/8” wide x 30” long, 150 pcs, tagged “Project ABC”.


# of Bars

TrEaD WIDTH (Type 19-4 only)

“a” DImEnsIon (outer slot)

“B” DImEnsIon(Inner slot)

mETrIC(mm)

ImPErIaL (inches)

mETrIC (mm)

ImPErIaL(inches)

mETrIC (mm)

ImPErIaL(inches)

5 157 6 3/16 64 2 1/2 n/a n/a6 187 7 3/8 114 4 1/2 n/a n/a7 217 8 9/16 114 4 1/2 n/a n/a8 248 9 3/4 178 7 114 4 1/29 278 10 15/16 178 7 114 4 1/2

10 308 12 1/8 178 7 114 4 1/2

BEarIng Bar sIzE

maxImum LEnTH of TrEaD (Type 19-4 only)

Plain serrated

mETrIC(mm)

ImPErIaL (inches)

mETrIC(mm)

ImPErIaL (ft. & in.)

mETrIC (mm)

ImPErIaL(ft. & in.)

25 x 4.8 1 x 3/16 710 2’ 4” – –32 x 4.8 1 1/4 x 3/16 860 2’ 10” 790 2’ 7”38 x 4.8 1 1/2 x 3/16 1070 3’ 6” 970 3’ 2”44 x 4.8 1 3/4 x 3/16 1300 4’ 3” 1170 3’ 10”

Note: 1/8” (3.2mm) bearing bar not recommended.

StAndArd treAd detAiL

mAximUm recommended treAd LengthS

End Plate Width and Hole Pattern Dimensions

For tread widths 9 3/4”, 10 15/16” & 12 1/8”, standard end plate is complete with 2 slots. See “B” dimension in chart.


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StAndArd FiShoLow – type 30 (metric)Bearing Bars: 30mm centers, 6063T6Cross Bars: 6063T5Stock panels: 915mm nominal width x 7315mm long



LoaD/ DEfLECTIon

sPan In mILLImETrEs (mm) sECTIon moDuLus PEr 305mm of WIDTH610 762 914 1067 1219 1372 1524 1676

1829

1981

2134

2286

2438

2591

2743

25 x 3.2 9.37

U 20.16 12.90 8.96 6.58 5.04 3.98

3.54D 3.66 5.72 8.23 11.20 14.63 18.52C 6.14 4.92 4.10 3.51 3.07 2.73D 2.93 4.57 6.58 8.96 11.70 14.81

25 x 4.8 13.28

U 30.24 19.35 13.44 9.87 7.56 5.97

5.33D 3.66 5.72 8.23 11.20 14.63 18.52C 9.22 7.37 6.14 5.27 4.61 4.10D 2.93 4.57 6.58 8.96 11.70 14.81

32 x 3.2 11.28

U 31.50 20.16 14.00 10.29 7.88 6.22 5.04 4.17 3.50

5.55D 2.93 4.57 6.58 8.96 11.70 14.81 18.29 22.13 26.33C 9.60 7.68 6.40 5.49 4.80 4.27 3.84 3.49 3.20D 2.34 3.66 5.27 7.17 9.36 11.85 14.63 17.70 21.07

32 x 4.8 16.16

U 47.25 30.24 21.00 15.43 11.81 9.33 7.56 6.25 5.25 4.47 3.86

8.31D 2.93 4.57 6.58 8.96 11.70 14.81 18.29 22.13 26.33 30.91 35.84C 14.40 11.52 9.60 8.23 7.20 6.40 7.68 65.24 4.80 4.43 4.11D 2.34 3.66 5.27 7.17 9.36 11.85 14.63 17.70 21.07 24.73 28.68

38 x 3.2 13.28

U 45.36 29.03 20.16 14.81 11.34 8.96 7.26 6.00 5.04 4.29 3.70 3.23 2.84 2.51 22.24

8.00D 2.44 3.81 5.49 7.47 9.75 12.34 15.24 18.44 21.95 25.76 29.87 34.29 39.01 44.04 49.38C 13.83 11.06 9.22 7.90 6.91 6.14 5.53 5.03 4.61 4.25 3.95 3.69 3.46 3.25 3.07D 1.95 3.05 4.39 5.97 7.80 9.88 12.19 14.75 17.56 20.60 23.90 27.43 31.21 35.23 39.50

38 x 4.8 18.99

U 68.04 43.55 30.24 22.22 17.01 13.44 10.89 9.00 7.56 6.44 5.55 4.84 4.25 3.77 3.36

11.96D 2.44 3.81 5.49 7.47 9.75 12.34 15.24 18.44 21.95 25.76 29.87 34.29 39.01 44.04 49.38C 20.74 16.59 13.83 11.85 10.37 9.22 8.30 5.03 6.91 6.38 5.93 5.53 5.18 4.88 4.61D 1.95 3.05 4.39 5.97 7.80 9.88 12.19 14.75 17.56 20.60 23.90 27.43 31.21 35.23 39.50

45 x 4.8 21.87

U 92.61 59.27 41.16 30.24 23.15 18.29 14.82 12.25 10.29 8.77 7.56 6.59 5.79 5.13 4.57

16.29D 2.09 3.27 4.70 6.40 8.36 10.58 13.06 15.81 18.81 22.08 25.60 29.39 33.44 37.75 42.32C 28.23 22.58 18.82 16.13 14.11 12.55 11.29 10.26 9.41 8.69 8.07 7.53 7.06 6.64 6.27D 1.67 2.61 3.76 5.12 6.69 8.46 10.45 12.64 15.05 17.56 20.48 23.51 26.75 30.20 33.86

51 x 4.8 24.80

U 120.96 77.41 53.76 39.50 30.24 23.89 19.35 15.99 13.44 11.45 9.87 8.60 7.56 6.70 5.97

21.29D 1.83 2.86 4.11 5.60 7.32 9.26 11.43 13.83 16.46 19.32 22.40 25.72 29.26 33.03 37.03C 36.87 29.50 24.58 21.07 18.43 16.39 14.75 13.41 12.29 11.34 10.53 9.83 9.22 8.68 8.19D 1.46 2.29 3.29 4.48 5.85 7.41 9.14 11.06 13.17 15.45 17.92 20.57 23.41 26.43 29.63

57 x 4.8 27.73

U 153.09 97.98 68.04 49.99 38.27 30.24 24.49 20.24 17.01 14.49 12.50 10.89 9.57 8.48 7.56

26.94D 1.63 2.54 3.66 4.98 6.50 8.23 10.16 12.29 14.63 17.17 19.91 22.86 26.01 29.36 32.92C 46.66 37.33 31.11 26.66 23.33 20.74 18.66 16.97 15.55 14.36 13.33 12.44 11.67 10.98 10.37D 1.30 2.03 2.93 3.98 5.20 6.58 8.13 9.83 11.70 13.74 15.93 18.29 20.81 23.49 26.33

64 x 4.8 30.61

U 189.00 120.96 84.00 61.71 47.25 37.33 30.24 24.99 21.00 17.89 15.43 13.44 11.81 10.46 9.33

33.25D 1.46 2.29 3.29 4.48 5.85 7.41 9.14 11.06 13.17 15.45 17.92 20.57 23.41 26.43 29.63C 57.61 46.09 38.41 32.92 28.80 25.60 23.04 20.95 25.60 17.73 16.46 15.36 14.40 13.55 12.80D 1.17 1.83 2.63 3.58 4.68 5.93 7.32 8.85 10.53 12.36 14.34 16.46 18.73 21.14 23.70

Loads and deflections given in this table are theoretical and are based on a maximum allowable fibre stress of 82.82 MPa. All metric dimensions are based on a “soft” conversion. For Fisholow I-bar loading, use the equivalent depth 4.8mm bar size values in this load table.

aluminum type 30 metric

Fisholow grating meets N.A.A.M.M. standards.


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I-Bar WEIgHTs (mETrIC)


WEIgHTs (kg/m2)

TYPE 18-102 TYPE 24-102 TYPE 30-102 TYPE 48-102 TYPE 60-102

25 x 6 n/a 11.47 9.03 5.96 4.9832 x 6 n/a 13.96 11.18 7.37 6.1538 x 6 n/a 16.11 12.84 8.59 7.1845 x 6 n/a 18.21 14.50 9.86 8.5451 x 6 n/a 20.26 16.11 11.91 9.1857 x 6 n/a 22.80 18.99 12.74 10.6464 x 6 n/a 23.29 19.48 13.04 10.89

Spans and loads in the pink shaded area exceed a deflection of 6mm for uniform loads of 5kPa. Experience has shown that 6mm deflection is the maximum deflection to give pedestrian comfort, but can be exceeded for other types of loads at the discretion of the engineer.



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StAndArd FiShoLow – type 19Bearing Bars: 1 3/16“ centers, 6063T6Cross Bars: 6063T5Stock panels: 3’ nominal width x 24’ long

Loads and deflections given in this table are theoretical and are based on a maximum allowable fibre stress of 12,000 P.S.I.For Fisholow I-bar loading, use the equivalent depth 3/16” bar size values in this load table.

aluminum type 19


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aPProx. WEIgHT (lbs./ft.2)

LoaD/ DEfLECTIon

sPan In fEET anD InCHEs sECTIon moDuLus PEr fooT of WIDTH2’ 0” 2’ 6” 3’ 0” 3’ 6” 4’ 0” 4’ 6” 5’ 0” 5’ 6” 6’ 0”

6’ 6”

7’ 0”

7’ 6”

8’ 0”

8’ 6”

9’ 0”

1 x 1/8 1.92

U 421 269 187 137 105 83

0.216D 0.114 0.225 0.324 0.441 0.576 0.729C 421 337 281 241 211 187D 0.115 0.18 0.259 0.353 0.461 0.583

1 x 3/16 2.72

U 632 404 281 206 158 125

0.325D 0.144 0.225 0.324 0.441 0.576 0.729C 632 505 421 361 316 281D 0.115 0.18 0.259 0.353 0.461 0.583

1 1/4 x 1/8 2.31

U 658 421 292 215 164 130 105 87 73

0.339D 0.115 0.18 0.259 0.353 0.461 0.583 0.720 0.871 1.037C 658 526 439 376 329 292 263 239 219D 0.092 0.144 0.207 0.282 0.369 0.467 0.576 0.697 0.829

1 1/4 x 3/16 3.31

U 987 632 439 322 247 195 158 130 110 93 81

0.507D 0.115 0.18 0.259 0.353 0.461 0.583 0.720 0.871 1.037 1.217 1.411C 987 789 658 564 493 439 395 359 329 304 282D 0.092 0.144 0.207 0.282 0.369 0.467 0.576 0.697 0.829 0.973 1.129

1 1/2 x 1/8 2.72

U 947 606 421 309 237 187 152 125 105 90 77 67 59 52 47

0.488D 0.096 0.150 0.216 0.294 0.384 0.486 0.600 0.726 0.864 1.014 1.176 1.35 1.536 1.734 1.944C 947 758 632 541 474 421 379 344 316 291 271 253 237 223 211D 0.077 0.120 0.173 0.235 0.307 0.389 0.480 0.581 0.691 0.811 0.941 1.08 1.229 1.387 1.555

1 1/2 x 3/16 3.89

U 1421 909 632 464 355 281 227 188 158 135 116 101 89 79 70

0.730D 0.096 0.15 0.216 0.294 0.384 0.486 0.6 0.726 0.864 1.014 1.176 1.35 1.536 1.734 1.944C 1421 1137 947 812 711 632 568 517 474 437 406 379 355 334 316D 0.077 0.12 0.173 0.235 0.307 0.389 0.48 0.581 0.691 0.811 0.941 1.08 1.229 1.387 1.555

1 3/4 x 3/16 4.48

U 1934 1238 860 632 484 382 309 256 215 183 158 138 121 107 96

0.994D 0.082 0.129 0.185 0.252 0.329 0.417 0.514 0.622 0.741 0.869 1.008 1.157 1.317 1.486 1.666C 1934 1547 1289 1105 967 860 774 703 645 595 553 516 484 455 430D 0.066 0.103 0.148 0.202 0.263 0.333 0.411 0.498 0.592 0.695 0.806 0.926 1.053 1.189 1.333

2 x 3/16 5.08

U 2526 1617 1123 825 632 499 404 334 281 239 206 180 158 140 125

1.299D 0.072 0.113 0.162 0.221 0.288 0.365 0.45 0.545 0.648 0.761 0.882 1.013 1.152 1.301 1.458C 2526 2021 1684 1444 1263 1123 1011 919 842 777 962 674 632 594 561D 0.058 0.09 0.13 0.176 0.263 0.292 0.36 0.436 0.518 0.608 0.706 0.81 0.922 1.04 1.166

2 1/4 x 3/16 5.68

U 3197 2046 1421 1044 799 632 512 423 355 303 261 227 200 177 158

1.644D 0.064 0.100 0.144 0.196 0.256 0.324 0.400 0.484 0.576 0.676 0.784 0.900 1.024 1.156 1.296C 3197 2558 2132 1827 1599 1421 1279 1163 1066 984 1218 1137 799 752 711D 0.051 0.080 0.115 0.157 0.205 0.259 0.320 0.387 0.461 0.541 0.627 0.720 0.819 0.925 1.037

2 1/2 x 3/16 6.28

U 3947 2526 1754 1289 987 780 632 522 439 374 322 281 247 219 195

2.029D 0.058 0.090 0.130 0.176 0.230 0.292 0.360 0.436 0.518 0.608 0.706 0.81 0.922 1.04 1.166C 3947 3158 2632 2256 1974 1754 1579 1435 1316 1215 1128 1053 987 929 877D 0.046 0.072 0.104 0.141 0.184 0.233 0.288 0.348 0.415 0.487 0.564 0.648 0.737 0.832 0.933

Fisholow grating meets N.A.A.M.M. standards.


I-Bar WEIgHTs (ImPErIaL)


WEIgHTs (lbs./ft2)

TYPE 11-4 TYPE 15-4 TYPE 19-4 TYPE 30-4 TYPE 38-4

1 x 1/4 n/a 2.35 1.85 1.22 1.021 1/4 x 1/4 n/a 2.86 2.29 1.51 1.261 1/2 x 1/4 n/a 3.30 2.63 1.76 1.471 3/4 x 1/4 n/a 3.73 2.97 2.02 1.75

2 x 1/4 n/a 4.15 3.30 2.24 1.882 1/4 x 1/4 n/a 4.67 3.89 2.61 2.182 1/2 x 1/4 n/a 4.77 3.99 2.67 2.23

Spans and loads in the pink shaded area exceed a deflection of 1/4” for uniform loads of 100 lbs/sq. ft. Experience has shown that 1/4” deflection is the maximum deflection to give pedestrian comfort, but can be exceeded for other types of loads at the discretion of the engineer.



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aluminum special mesh

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aluminum special mesh bar grating

SpeciAL cLoSe meSh (metric)Deflections as per table on page 26.

type 18 metric Multiply load values by 1.72 as per table on page 26.

Type 18 Metric is not available in I-bar style bearing bars.


SpeciAL wide meSh (metric)Deflections as per table on page 26.



SpeciAL cLoSe meSh Deflections as per table on page 27.

type 11 Multiply load values by 1.72 as per table on page 27.

Type 11 is not available in I-bar style bearing bars.


SpeciAL wide meSh Deflections as per table on page 27.



Aluminum Special Mesh Bar Grating is a non-stocked specialty item. For the most cost effective and readily available aluminum bar grating option, choose Standard Fisholow Type 19-4 (Type 30-102 Metric).

For panel widths, see steel panel width charts located on pages 16 and 17. All types of aluminum bar grating available up to 3 feet (915mm) nominal width.



fiberglass reinforced plastic (frp) grating


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molded frp information

moLded FibregLASS reinForced pLAStic (Frp) grAting

Molded Fiberglass Reinforced Plastic (FRP) Grating is manufactured in an open, heated mold. Continuous E-glass fibers are interwoven in alternating layers while being completely wetted out with thermosetting resin systems. This continuous process produces an integral, one piece construction which provides resilience and bi-directional strength. Although the concave profile of standard plain surface Molded FRP Grating provides excellent anti-skid properties, an integral grit surface can be supplied for additional slip resistance. Other benefits include:

• Corrosion Resistant• Non-Rusting• Fire-Retardant• Non-Conductive• Light Weight• Easy to Install• Unlimited Color Options

FAbricAtion

As with our other grating products, Nucor Grating offers full fabrication services with FRP grating. We can also supply a variety of FRP structural shapes that may be associated with an FRP grating project. Please call us to discuss any of your custom platform and stair requirements.

moLded Frp grAting reSin SyStemS

how to order moLded Frp grAting

When ordering or specifying Molded FRP Grating, please confirm:

• Type• Resin• Color• Top Surface• Sheet Size

Example: Nucor Grating Molded FRP 1 1/2” deep square mesh, AN (Architectural Grade, Non Fire Retardant), dark grey, grit top, 4’ x 12’ sheets

inStALLAtion

FRP grating sheet size and lightweight construction permit simple and economical installation. Fasteners, supports and hold-down clips permit total flexibility in achieving the desired configuration of the final installation.

Conventional hand tools such as a hack saw, sabre saw, band saw or disc saw with metal cutting blade can be used to cut grating on-site and to cut around special openings as required. Cut ends should be treated with Edge Sealing Kits.

TYPE DEsCrIPTIon rEsIn CorrosIon rEsIsTanCE

fLamE sPrEaD raTIng

AN*Architectural Grade Non Fire Retardant

Orthophthalic Good Not Rated

AF*Architectural Grade

Fire RetardantOrthophthalic Good Class 1:25 or Less

FFFood Grade

Fire RetardantIsophthalic Very Good Class 2:30 or Less

IFIndustrial Grade Fire Retardant

Isophthalic Very Good Class 1:25 or Less

CFChemical Proof Fire Retardant

Vinyl Ester Excellent Class 1:25 or Less

CR+Chemical Proof

Fire Retardant PlusVinyl Ester Excellent Class 1:10 or Less

*Stocked at most warehouses in dark grey color, grit top or smooth top.

Mo

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molded frp grating


FRP g

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molded frp types

PanEL sIzE feet (mm)

aPProx. WEIgHT lbs./ft.2 (kg/m2)

aPProx. sHIPPIng WEIgHT lbs. (kg)

BEarIng Bar sIzE inches (mm)

Cross Bar sIzE inches (mm)

ToP surfaCE % oPEn arEa

WIDTH sPaCE C-C WIDTH sPaCE C-C

1” rectangular mesh4’ x 12’

(1220 x 3658)3.1

(15.13)149

(67.5)5/16 (8)

1 (25)

5/16 (8)

4 (100)

Plain or Grip Top

59%

3’ x 10’ (915 x 3048)

3.1 (15.13)

93 (42)

5/16 (8)

1 (25)

5/16 (8)

4 (100)

Plain or Grip Top

59%

1” square mesh4’ x 12’

(1220 x 3658)2.5

(12.2)120 (55)

1/4 (6)

1 1/2 (38)

1/4 (6)

1 1/2 (38)

Plain or Grip Top

70%

3’ x 10’ (915 x 3048)

2.5 (12.2)

75 (34)

1/4 (6)

1 1/2 (38)

1/4 (6)

1 1/2 (38)

Plain or Grip Top

70%

1 1/2” square mesh4’ x 12’

(1220 x 3658)3.7

(18.1)180 (82)

1/4 (6)

1 1/2 (38)

1/4 (6)

1 1/2 (38)

Plain or Grip Top

70%

3’ x 10’ (915 x 3048)

3.7 (18.1)

111 (50)

1/4 (6)

1 1/2 (38)

1/4 (6)

1 1/2 (38)

Plain or Grip Top

70%

2” square mesh4’ x 12’

(1220 x 3658)4

(19.53)192 (87)

1/4 (6)

2 (51)

1/4 (6)

2 (51)

Plain or Grip Top

72%

Molded FRP grating meets O.S.H.A. specifications 1910.23 paragraph (a) 9.

1 1/2” SqUAre meSh

1 1/2” x 1 1/2” x 1 1/2” (38mm x 38mm x 38mm)

1” SqUAre meSh

1 1/2” x 1 1/2” x 1” (38mm x 38mm x 25mm)

1” rectAngULAr meSh

molded frp grating

1” x 4” x 1” (25mm x 100mm x 25mm)

2” SqUAre meSh

2” x 2” x 2” (51mm x 51mm x 51mm)

sTYLE LoaD/ DEfLECTIon

sPan In mILLImETrEs (mm)

300 450 600 900 1200 1525

1” Square Mesh

U 13652 4045 1706 506 213D 3 5 6 9 12C 2567 1141 642 285 160D 3 5 6 9 12

1” Rectangular Mesh

U 18578 5505 2322 688 290D 3 5 6 9 12C 3411 1516 853 379 213D 3 5 6 9 12

1 1/2” Square Mesh

U 30837 9137 3855 1142 482 235D 3 5 6 9 12 15C 5133 2563 1442 641 360 223D 3 5 6 9 12 15

2” Square Mesh

U 29744* 13282 5600 1656 682 282D 3 5 6 9 12 15C 4462* 4183 2974 1403 846 581D 3 5 6 9 12 15

Allowable Loads and deflections

IMPERIAL LEGEND U = Safe Uniform Load (lb./ft.2)C = Safe Concentrated Load (lbs./ft of grating width) D = Deflection (in.)

Loads below are based on a minimum safety factor of 3 or maximum deflection of 1% of the span.

sTYLE LoaD/ DEfLECTIon

sPan In InCHEs

12" 18" 24" 36" 48" 60"

1” Square Mesh

U 2662 789 333 99 42D 0.120 0.180 0.240 0.360 0.480C 1667 741 417 185 104D 0.120 0.180 0.240 0.360 0.480

1” Rectangular Mesh

U 3623 1073 453 134 57D 0.120 0.180 0.240 0.360 0.480C 2222 988 556 247 139D 0.120 0.180 0.240 0.360 0.480

1 1/2” Square Mesh

U 6013 1782 752 223 94 48D 0.120 0.180 0.240 0.360 0.480 0.600C 3889 1667 938 417 234 150D 0.120 0.180 0.240 0.360 0.480 0.600

2” Square Mesh

U 5800* 2590 1092 323 133 55D 0.120 0.180 0.240 0.360 0.480 0.600C 2900 2719 1933 912 550 378D 0.120 0.180 0.240 0.360 0.480 0.600

METRIC LEGEND U = Safe Uniform Load (kg/m2)C = Safe Concentrated Load (kg/m of grating width) D = Deflection (mm)

*Represents Shear Force Governs *Represents Shear Force Governs


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pULtrUded Frp grAting

Pultruded FRP Grating has all the benefits of Molded FRP Grating including corrosion resistance, high strength to weight ratio, and ease of installation. With its high fiberglass content and I-bar or T-bar style bearing bars, Pultruded FRP Grating has increased unidirectional strength and stiffness to accommodate longer span conditions. Pultruded FRP Gratings are offered in a variety of bar profiles and spacings, including close mesh options that are designed for non-motorized wheel traffic and ADA compliance.

pULtrUded Frp grAting typeS

Pultruded FRP I-Bar Types

pultruded frp information

Pultruded FRP T-Bar Types

ParT numBEr

aPProx. WEIgHT

“x” DImEnsIon oPEn sPaCE

“Y” DImEnsIon LoaD Bar CEnTErs

% oPEn arEa

mETrIC (kg/m2)

ImPErIaL (lbs./ft.2)

mETrIC (mm)

ImPErIaL (inches)

mETrIC (mm)

ImPErIaL (inches)

I-Bar 1” DeepI-4010 17.57 3.60 10 0.4 25 1.0 40%I-5010 14.74 3.02 15 0.6 30 1.2 50%I-6010 11.37 2.33 23 0.9 38 1.5 60%I-Bar 1 1/4” DeepI-4012 18.40 3.77 10 0.4 25 1.0 40%I-6012 13.03 2.67 23 0.9 38 1.5 60%I-Bar 1 1/2” DeepI-4015 21.97 4.50 10 0.4 25 1.0 40%I-5015 18.16 3.72 15 0.6 30 1.2 50%I-6015 16.11 3.30 23 0.9 38 1.5 60%

ParT numBEr

aPProx. WEIgHT

“x” DImEnsIon oPEn sPaCE

“Y” DImEnsIon LoaD Bar CEnTErs

% oPEn arEa

mETrIC (kg/m2)

ImPErIaL (lbs./ft.2)

mETrIC (mm)

ImPErIaL (inches)

mETrIC (mm)

ImPErIaL (inches)

T-Bar 2” DeepT-3320 21.67 4.44 13 0.5 38 1.5 33%T-5020 16.74 3.43 25 1.0 51 2.0 50%

pULtrUded Frp reSinS

Pultruded FRP grating is available in two resin bases – Isophthalic Polyester and Vinyl Ester. Isophthalic Polyester resin is ideal for most industrial applications and is available in standard light grey, yellow, or green. Vinyl Ester resin offers superior corrosion resistance and comes standard dark grey. Both are fire retardant with ASTM E84 flame spread rating Class 1:25 or less.

Standard panel sizes are 4’ x 20’ (1219mm x 6096mm), however custom panel sizes are available.

Custom colors are also available.

how to order pULtrUded Frp grAting

When ordering or specifying Pultruded FRP Grating, please confirm:

• Type• Resin• Color• Top Surface• Sheet Size

Example: Nucor Grating Pultruded FRP I-6015 (I-bar 60% open, 1 1/2” deep), Vinyl Ester resin (Chemical Grade, Fire Retardant), dark grey, grit top, standard 4’ x 20’ sheets

LoAd tAbLe inFormAtion

Load Tables Available Upon Request

pultruded frp grating

Pult

rud

ed F

RP


pultruded frp grating

grating fastening methods


gr

ati

ng

fa

sten

ing

met

ho

ds

bAr grAting FAStenerS

Type D Saddle Clip (complete with stainless steel self tapping screw)

Our most common and cost-effective fastening method. Designed for use with Tru-Weld Type 19 and Type 15 bar grating only (in 1/8” and 3/16” bar sizes).

Available in standard galvanized or bare steel and stainless steel options.

Type D Saddle Clip (complete with nut, bolt, and bottom clamp)

This combination allows for fastening grating without drilling into the supports. The Type D Saddle Clip holds the grating from the top as the bottom clamp is tightened under the flange of the supporting member. Designed for use with Tru-Weld Type 19 and Type 15 bar grating only (in 1/8” and 3/16” bar sizes).


Type D Saddle Clip (complete with C-clamp and bolt)

Eliminates the need to drill supports or have access beneath the grating during installation. The C-clamp slides between the bearing bars to clamp the flange of the supporting member and is tightened from above using a hex-driver. For use with Tru-Weld Type 19 and Type 15 bar grating only (in 1/8” and 3/16” bar sizes).


Type B Clamping Bolt, Nut, and Bottom Clamp

For close mesh Type 11 and Type 9.5 grating, a square collared clamping bolt can be inserted directly between the ends of the bearing bars and fitted through a bottom clamp. The rounded bolt head rests directly on the bearing bars eliminating the need for a top saddle clip.

Available by special order in bare steel, galvanized, and stainless steel.

fastening methods information

Bar

Gra

tin

g F

aste

nin

g M

eth

od

s


SELF-DRILLING/SELF-TAPPING SCREW


gr

atin

g fa

stenin

g m

etho

ds

moLded Frp grAting

Molded FRP Clip Assembly

Comes complete with a stainless steel top “M” bracket with nut, bolt, and washer to suit molded FRP style and depth. When ordering, please specify style of molded FRP being fastened.


pULtrUded Frp grAting

Lower Flange Clip Assembly

Offers a fastening solution for below-surface attachment of pultruded grating. Includes FRP Lower Flange Clamp and hardware. This style of clip should be used in pairs on either side of the pultruded grating bar being clamped.

FRP G

rating

Fastenin

g M

etho

ds

Proud member of N.A.A.M.M.

Nucor Grating reserves the right to improve all product designs and modify or change information in this publication without notice. The symbols ® designate Canadian and United States of America registered trade-mark status. The following are trade-marks of Nucor Grating/Fisher & Ludlow: Tru-Weld, Flowforge and Fisholow. Nucor Grating/ Fisher & Ludlow has additional registered trade-marks in Canada and the United States of America.

CONTACT US

1-800-334-2047 (United States)1-800-268-6277 (Canada)[email protected]

This document is printed on chlorine-free paper made from 10 per cent recycled fibre and printed with an alcohol free printing process using vegetable based inks.

Printed in Canada December 2017

CANADA

Ontario ISO 9001-2008 Certified 750 Appleby Line PO Box 5025Burlington, ON L7R 3Y8Tel: 905-632-2121Fax: 905-632-6295

Alberta17527 - 107 AvenueEdmonton, AB T5S 1E5 Tel: 780-481-3941Fax: 780-481-3967

4609 - 64 AvenueWetaskiwin, AB T9A 2G4Tel: 1-800-268-6277

British Columbia 19511 - 92 AvenueSurrey, BC V4N 4G6Tel: 604-888-0911Fax: 604-888-0383

Quebec12450 Boul. IndustrielMontreal (P.A.T.), QC H1B 5M5Tel: 514-640-5085Fax: 514-640-1115

UNITED STATES

Illinois1115 E 5000 N RoadBourbonnais, Il 60914Tel: 1-815-614-2527

Kentucky6900 Houston Road Building 500, #8Florence, KY 41042 Tel: 859-282-7767Fax: 859-282-7702

Mississippi211 Industrial DriveMadison, MS 39110Tel: 1-800-334-2047

Pennsylvania 2000 Corporate Drive, Suite 400 Wexford, PA 15090Tel: 724-934-5320Fax: 724-934-5350

17 W 2nd StreetBethlehem, PA 18015Tel: 1-800-334-2047Fax: 724-934-5350

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grating · 2019-07-16 · Example: Nucor Grating Tru-Weld bar grating Type 19-4, 1 1/4 x 3/16...

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