Expanded Metal and Grating

8/16/2019 Expanded Metal and Grating

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18-1

Extensive racking and handling systems keep Alro's diverse inventory

organized and accessible.

EXPANDED METAL & GRATING

EXPANDED METAL SHEETS

GRATING

TERMINOLOGY ...................................................18-2 thru 18-3

ORDERING PROCEDURE ................................................. 18-3

Standard Carbon Sheets.............................................. 18-4 Flattened Carbon Sheets ............................................. 18-5

Standard Type 304 Stainless ....................................... 18-6 Flattened Type 304 Stainless ....................................... 18-7 Standard Aluminum Alloy 3003 H14............................. 18-8

Flattened Aluminum Alloy 3003 H14 ............................ 18-9 Catwalk and Structural ............................ 18-10 thru 18-11

Steel Grating .............................................18-12 thru 18-13 Safety Grating ...........................................18-14 thru 18-17 Fiberglass Grating .....................................18-17 thru 18-20

PERFORATED CARBON STEEL SHEETS ...................... 18-12

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EXPANDED METALTERMINOLOGYSTYLE DESIGNATION

A combination of numbers, letters, and abbreviations permitting proper specications

of dimension, gauge, style, and weight. In expanded metal products, the rst numberdesignates nominal dimension, short way of design. The second number completesthe designation and may specify the gauge of metal, weight per 100 square feet,or may have some other signicance. Grating products are designated by weight ofnished product per square foot.

STANDARD EXPANDED METALStandard expanded metal as it comes from the press. The strands and bonds are setat a uniform angle to the plane on the sheet. This gives added strength and rigidity,as well as skid-resistant surface. Standard expanded metal is abbreviated XM.

FLATTENED METAL

Flattened expanded metal is manufactured by passing the standard expanded sheetthrough a cold roll reducing mill. Flattened expanded metal turns the strands and bondsdown to provide a attened surface, reducing the thickness (gauge) and elongatingthe pattern. Thickness may vary plus or minus 10% from published dimensions.

GRATINGGrating is a standard expanded metal pattern produced from heavier gauge lowcarbon steel plates. Strands and the openings of grating are considerably largerthan other meshes. It is ideal for use wherever a strong, durable, lightweight surfaceis needed. Although used primarily for pedestrian trafc, grating can accommodateheavier loads if properly supported.

DESIGN SIZE Actual dimensions SWD and LWD. Measured from a point to a corresponding pointon the design shown.

SWD Nominal dimension Short Way of Design

SWOShort Way of Opening

LWDNominal dimension Long Way of Design

LWOLong Way of Opening

STRANDSThe sides of the expanded metal design.

STRAND THICKNESSGauge thickness of metal expanded.

STRAND WIDTH Amount of metal fed under dies toproduce one strand.

BONDThe solid intersection of two strands.

STANDARD EXPANDED METAL FLATTENED EXPANDED METAL

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EXPANDED METALSIDE SHEARINGThe process of cutting a piece of expanded metal parallel to the long dimension ofthe diamond.

RANDOM SIDE SHEARINGSide shearing is a cut made parallel to the LWD dimension of the sheet which usuallyleaves open diamonds.

BOND SIDE SHEARINGThis cut is made along the length of the sheet on the center line of the bond over thespecied width. In most cases it is not practical to attempt to Bond Side Shear eitherregular or attened expanded metal because of the camber.

END SHEARINGEND RANDOM SHEARING

The process of shearing a piece of expanded metal to a specied length (LWD). Thiscut normally leaves open diamonds at both ends but accomplishes close tolerancewhen both ends are sheared.

END BOND SHEARINGThe process of shearing a piece of expanded metal to a specied length (LWD).One end is cut on the Bond parallel to the SWD—the other end usually has opendiamonds.

SIDE BOND SHEARING

SIDE RANDOM SHEARING

E N D B O N D S H E A R

E N D R A N D

O M

S H E A R I N

G

ORDERING PROCEDURE

When ordering Expanded Metals, give complete style specications to avoid possibleerror. Include style, standard or attened, type of metal, and sheet dimensions. SWDdimensions always given before LWD.

EXAMPLE 1: EXAMPLE 2:

1/2" #18 carbon steel standard 1/2" .051 aluminum standard

4 ft. SWD by 8 ft. LWD 8 ft. SWD by 4 ft. LWD

Drawings are exaggeratedfor illustrative purposes.

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S W D

L W D S W D

L W D

S W O

L W O

W i d t h

S W D

L W D

EXPANDED METAL SHEETSExpanded Metal is sheet steel which has been slit and expanded up to 10 timesits original width. This results in an increase in the strength and rigidity of the basicsheet. Often used in industry or the home where there is a drainage problem or a

need for free passage of air and light. Applications: Standard for partitions, guards,and enclosures; Flattened for trays, bins, shelving, and grills.

N o . o f

D e s i g n s p e r

f t .

T h i c k -

n e s s

O v e r a l l

T h i c k

n e s s

( i n )

D

e s i g n S i z e

( i n c h e s )

O p e n i n g S i z e

( i n c h e s )

l b s

p e r 1 0 0

S q . f t .

W i d t h L e n g t h

¼ " – # 2 0

8 6

4

8

. 2 5 0

1 . 0 0

. 1 2 5

.

7 1 8

. 0 7 2

. 0 3 6

. 1 3 5

4 8

1 2

4 5

¼ " – # 1 8

1 1 4

4

8

. 2 5 0

1 . 0 0

. 1 1 0

. 7 1 8

. 0 7 2

. 0 4 8

. 1 4 7

4 8

1 2

4 3

½ " – # 2 0

4 3

4

8

. 5 0 0

1 . 0 0

. 4 3 8

. 9 3 8

. 0 7 2

. 0 3 6

. 1 4 0

2 4

1 0

8 0

½ " – # 1 8

7 0

4 & 6

8 & 1 0

. 5 0 0

1 . 2 0

. 4 3 8

. 9 3 8

. 0 8 8

. 0 4 8

. 1 7 2

2 4

1 0

7 2

½ " – # 1 6

8 6

4 & 6

8 & 1 0

. 5 0 0

1 . 0 0

. 3 7 5

. 9 3 8

. 0 8 7

. 0 6 0

. 1 7 5

2 4

1 0

6 5

½ " – # 1 3

1 4 7

4 & 6

8 & 1 0

. 5 0 0

1 . 2 0

. 3 1 2

. 9 3 8

. 0 9 6

. 0 9 2

. 2 0 4

2 4

1 0

5 7

¾ " – # 1 6

5 4

4 & 6

8 & 1 0

. 9 2 3

2 . 0 0

. 8 1 3

1 . 7 5 0

. 1 0 1

. 0 6 0

. 2 1 0

1 3

6

7 8

¾ " – # 1 3

8 0

4 & 6

8 & 1 0

. 9 2 3

2 . 0 0

. 7 5 0

1 . 6 8 8

. 0 9 6

. 0 9 2

. 2 0 5

1 3

6

7 6

¾ " – # 1 0 ( 1 3 g a . )

1 2 0

4 & 6

8 & 1 0

. 9 2 3

2 . 0 0

. 7 5 0

1 . 6 2 5

. 1 4 4

. 0 9 2

. 2 9 0

1 3

6

7 2

¾ " – # 9 ( 1 0 g a . )

1 8 0

4 & 6

8 & 1 0

. 9 2 3

2 . 0 0

. 6 8 8

1 . 5 6 2

. 1 5 0

. 1 3 4

. 3 1 2

1 3

6

6 8

1 " – # 1 6

4 4

4

8

1 . 0 0

2 . 4 0

. 9 3 8

2 . 0 6 2

. 0 8 7

. 0 6 0

. 1 9 2

1 2

5

8 2

1 ½ " – # 1 8

2 0

4

8

1 . 3 3

3 . 0 0

1 . 3 1 3

2 . 6 2 5

. 0 6 8

. 0 4 8

. 1 4 0

9

4

9 0

1 ½ " – # 1 6

4 0

4

8

1 . 3 3

3 . 0 0

1 . 2 5 0

2 . 6 2 5

. 1 0 8

. 0 6 0

. 2 3 0

9

4

8 5

1 ½ " – # 1 3

6 0

4 & 6

8 & 1 0 1 . 3 3

3 . 0 0

1 . 1 8 8

2 . 5 0 0

. 1 0 5

. 0 9 2

. 2 4 2

9

4

8 5

1 ½ " – # 1 0 ( 1 3 g a . )

7 9

4 & 6

8 & 1 0 1 . 3 3

3 . 0 0

1 . 1 8 8

2 . 5 0 0

. 1 3 8

. 0 9 2

. 2 8 4

9

4

8 0

1 ½ " – # 9 ( 1 0 g a . )

1 2 0

4 & 6

8 & 1 0 1 . 3 3

3 . 0 0

1 . 1 2 5

2 . 3 7 5

. 1 4 4

. 1 3 4

. 3 1 2

9

4

7 6

1 ½ " – # 6 ( 6 g a . )

2 5 0

4 & 6

8

1 . 3 3

3 . 0 0

1 . 1 1 0

2 . 3 1 3

. 2 0 3

. 1 9 8

. 4 3 3

9

4

6 9

2 " – # 1 0 ( 1 3 g a . )

6 8

6

1 2

1 . 8 5

4 . 0 0

1 . 6 2 5

3 . 4 3 8

. 1 6 4

. 0 9 2

. 3 2 7

6 . 5

3

8 2

2 " – # 9 ( 1 0 g a . )

9 0

4

8

1 . 8 5

4 . 0 0

1 . 5 6 3

3 . 3 7 5

. 1 4 9

. 1 3 4

. 3 1 2

6 . 5

3

8 4

S t y l e

S T A N D A R D

C A R B O N

S T E

E L S T A N D A R D E X P

A N D E D

M E T A L ¼ "

T H R O U G H 2 " D I A M O

N D D E S I G N S

S t a n d a r d

S h e e t S i z e ( f t )

S t r a n d S i z e

( i n c h e s )

( % )

O p e n

A r e a

Continued on next page

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EXPANDED METAL SHEETSIn Standard Expanded Metal, the strands are set at sharp angles to the plane ofthe sheet. In the Flattened Expanded Metal, the strands have been cold rolled tobring them into one plane, thus providing a at surface.

¼ " — # 2 0

8 2

3 & 4

8

. 2 5 0

1 . 0 5

0 . 0 8 4

. 7 1 5

. 0

7 9

. 0 3 0

. 0 3 0

4 8

1 1 . 6 0 0

3 5

¼ " — # 1 8

1 0 8

3 & 4

8

. 2 5 0

1 . 0 5

0 . 0 7 5

. 7 1 5

. 0

8 0

. 0 4 0

. 0 4 0

4 8

1 1 . 6 0 0

3 5

½ " — # 2 0

4 0

3 & 4

8

. 5 0 0

1 . 2 5

0 . 3 7 5

1 . 0 0

. 0

7 9

. 0 2 9

. 0 2 9

2 4

9 . 5 0 0

6 5

½ " — # 1 8

6 6

3 & 4

8 & 1 0

. 5 0 0

1 . 2 5

0 . 3 1 2

1 . 0 0

. 0

9 7

. 0 3 9

. 0 3 9

2 4

9 . 5 0 0

6 0

½ " — # 1 6

8 2

3 & 4

8 & 1 0

. 5 0 0

1 . 2 5

0 . 3 1 2

1 . 0 0

. 0

9 6

. 0 5 0

. 0 5 0

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6 3

½ " — # 1 3

1 4 0

3 & 4

8 & 1 0

. 5 0 0

1 . 2 5

0 . 2 6 5

1 . 0 0

. 1

0 7

. 0 7 0

. 0 7 0

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5 2

¾ " — # 1 6

5 1

3 & 4

8 & 1 0

. 9 2 3

2 . 1 0

0 . 7 5 0

1 . 7 5 0

. 1 1 1

. 0 4 8

. 0 4 8

1 3

5 . 7 0 0

7 4

¾ " — # 1 4

6 3

3 & 4

8 & 1 0

. 9 2 3

2 . 1 0

0 . 6 8 8

1 . 8 1 3

. 1

0 5

. 0 6 1

. 0 6 1

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5 . 7 0 0

7 4

¾ " — # 1 3

7 5

3 & 4

8 , 1 0 & 1 2

. 9 2 3

2 . 1 0

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1 . 7 8 1

. 1

0 6

. 0 7 0

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¾ " — # 1 0 ( 1 3 g a . )

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4

8

. 9 2 3

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. 1

6 0

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¾ " — # 9 ( 1 0 g a . )

1 7 1

3 & 4

8 , 1 0 & 1 2

. 9 2 3

2 . 1 0

0 . 5 6 3

1 . 6 8 8

. 1

6 5

. 1 2 0

. 1 2 0

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6 3

1 " — # 1 6

4 1

3 & 4

8

1 . 0 0

2 . 5 0

0 . 8 1 3

2 . 2 5 0

. 0

9 8

. 0 5 0

. 0 5 0

1 2

4 . 6 8 4

7 8

1 ½ " — # 1 6 ( L t . )

2 9

4

8

1 . 3 3

3 . 2 0

1 . 1 7 5

2 . 6 2 0

. 0

9 3

. 0 5 0

. 0 5 0

9

3 . 7 5 0

8 3

1 ½ " — # 1 6

3 8

3 & 4

8

1 . 3 3

3 . 2 0

1 . 0 6 2

2 . 7 5 0

. 1 1 9

. 0 4 8

. 0 4 8

9

3 . 7 5 0

8 3

1 ½ " — # 1 4

4 6

3 & 4

8

1 . 3 3

3 . 2 0

1 . 0 6 2

2 . 7 5 0

. 1

3 4

. 0 6 0

. 0 6 0

9

3 . 7 5 0

8 0

1 ½ " — # 1 3

5 7

3 & 4

8 & 1 0

1 . 3 3

3 . 2 0

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2 . 7 5 0

. 1 1 6

. 0 7 0

. 0 7 0

9

3 . 7 5 0

8 0

1 ½ " — # 9 ( 1 0 g a . )

1 1 4

3 & 4 - 4 8 & 1 0 , 1 2 1 . 3 3

3 . 2 0

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5 8

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9

3 . 7 5 0

7 5

A b o v e m a t e r i a l c o n f o r m

s t o m i l i t a r y s p e c i c a t i o n M

I L - M - 1 7 1 9 4 C T y p e I I C l a s s

1

W e i g h t s , g a u g e s , d i m e n s i o n s , a n d s i z e s l i s t e d a b o

v e a r e a p p r o x i m a t e .

C A R B O N

S T E E L

F L A T T E N E D E X P A N D E D

M E T A L ¼ " T H R

O U G H 1 - 1 / 2 " D I A M O

N D D E S I G N S

S t y l e

S W D

S t r a n d S i z e

( i n c h e s )

% O p e n

A r e a


( i n c h e s )

L W D

L e n g t h

L W D

W i d t h

S W D

D e s i g

n S i z e

( i n c

h e s )

L W D

S W O

S t a n d a r d

S h e e t S i z e ( f t . )

S W D

W i d t h

T h i c k -

n e s s

L W O

O v e r a l l

T h i c k -

n e s s

( i n . )

l b s .

p e r

1 0 0 S q . f t .

N o . o f

D e s i g n s p e r

f t .


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18-6

S t a n d a r d


STAINLESS STEEL TYPE 304


A b o v e m a t e r i a l c o n f o r m s t o E M M A 5 5 7 - 9 9

S t y l e

S T A N D A R D

( % )

O p e n

A r e a

T h i c k -

n e s s

D e s i g n S i z e

( i n c h e s )


( i n c h e s )

l b s

p e r 1 0 0

S q . f t .

½ " – # 2 0

5 0

4

8

. 5 0 0 1 . 2 0 0

. 4 3 7

. 0 9 7

. 0 8 0

. 0 3 7

. 1 6 4

2 4

7 0

½ " – # 1 8

7 3

4

8

. 5 0 0 1 . 2 0 0

. 4 3 8

. 9 3 8

. 0 8 7

. 0 5 0

. 1 6 4

2 4

7 7

½ " – # 1 6

9 1

4

8

. 5 0 0 1 . 2 0 0

. 4 3 8

. 9 3 8

. 0 8 7

. 0 6 2

. 1 6 4

2 4

7 0

½ " – # 1 3

1 8 7

4

8

. 5 0 0 1 . 2 0 0

. 3 1 3

. 8 7 5

. 1 2 0

. 0 9 3

. 2 2 5

2 4

5 8

¾ " – # 1 8

4 8

4

8

. 9 2 3 2 . 0 0 0

. 8 1 3

1 . 7 5 0

. 1 0 6

. 0 5 0

. 2 0 0

1 3

8 9

¾ " – # 1 6

6 0

4

8

. 9 2 3 2 . 0 0 0

. 8 1 3

1 . 7 5 0

. 1 0 6

. 0 6 2

. 2 0 0

1 3

8 5

¾ " – # 1 3

9 1

4

8

. 9 2 3 2 . 0 0 0

. 7 5 0

1 . 6 8 8

. 1 0 8

. 0 9 3

. 2 0 0

1 3

7 8

¾ " – # 9 ( 1 0 g a . )

2 0 5

4

8

. 9 2 3 2 . 0 0 0

. 6 8 8

1 . 5 6 3

. 1 6 1

. 1 4 0

. 3 0 0

1 3

6 7

1 ½ " – # 1 6

4 5

4

8

1 . 3 3 3 3 . 0 0 0

1 . 2 5 0

2 . 7 5 0

. 1 1 5

. 0 6 2

. 2 2 0

9

8 9

1 ½ " – # 1 3

6 8

4

8

1 . 3 3 3 3 . 0 0 0

1 . 2 5 0

2 . 6 2 5

. 1 1 6

. 0 9 3

. 2 2 0

9

8 6

1 ½ " – # 9 ( 1 0 g a . )

1 3 7

4

8

1 . 3 3 3 3 . 0 0 0

1 . 1 2 5

2 . 5 0 0

. 1 5 5

. 1 4 0

. 2 8 0

9

7 5

S T A I N L E S S S T E E L T Y P E 3 0 4 S T A N

D A R D E X P A N D E D

M E T A L

1 / 2 " T H R O U G H

1 - 1 / 2 " D I A M O N D D E

S I G N S

S t r a n d S i z e

( i n c h e s )


S W D

L W D

S W

D

L W D

S W O

L W O

W i d t h

S

W D

N

o . o f

D e s i g n s

p

e r f t .

O v e r a l l

T h i c k

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( i n )


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18-7

STAINLESS STEEL TYPE 304


½ " — # 2 0

4 8

4

8

. 5 0 0

1 . 2 6 0 0 . 3 1 2

1 . 0 0 0

. 0 9 1

. 0 3 3

. 0 3 3

2 4

6 0

½ " — # 1 8

6 9

4

8

. 5 0 0

1 . 2 6 0 0 . 3 1 3

1 . 0 0 0

. 0 9 3

. 0 4 0

. 0 4 0

2 4

6 8

½ " — # 1 6

8 6

4

8

. 5 0 0

1 . 2 6 0 0 . 3 1 3

1 . 0 0 0

. 0 9 3

. 0 5 0

. 0 5 0

2 4

6 0

½ " — # 1 3

1 7 8

4

8

. 5 0 0

1 . 2 6 0 0 . 2 5 0

1 . 0 0 0

. 1 3 2

. 0 8 0

. 0 8 0

2 4

5 6

¾ " — # 1 8

4 6

4

8

. 9 2 3

2 . 1 0 0 0 . 7 5 0

1 . 8 1 3

. 1 1 8

. 0 4 0

. 0 4 0

1 3

7 7

¾ " — # 1 6

5 7

4

8

. 9 2 3

2 . 1 0 0 0 . 7 5 0

1 . 8 1 3

. 1 1 8

. 0 5 0

. 0 4 8

1 3

7 5

¾ " — # 1 3

8 7

4

8

. 9 2 3

2 . 1 0 0 0 . 6 2 5

1 . 7 5 0

. 1 2 0

. 0 7 0

. 0 7 0

1 3

7 4

¾ " — # 9 ( 1 0 g a . )

1 9 5

4

8

. 9 2 3

2 . 1 0 0 0 . 5 6 3

1 . 6 8 8

. 1 6 0

. 1 1 9

. 1 1 9

1 3

6 4

1 ½ " — # 1 6

4 3

4

8

1 . 3 3 0

3 . 1 5 0 1 . 0 6 3

2 . 7 5 0

. 1 2 4

. 0 5 0

. 0 5 0

9

8 3

1 ½ " — # 1 3

6 5

4

8

1 . 3 3 0

3 . 1 5 0 1 . 0 0 0

2 . 6 2 5

. 1 2 4

. 0 7 9

. 0 7 9

9

7 9

1 ½ " — # 9 ( 1 0 g a . )

1 3 1

4

8

1 . 3 3 0

3 . 1 5 0 0 . 9 3 8

2 . 6 2 5

. 1 6 5

. 1 1 9

. 1 1 9

9

7 6


S t y l e

S W D

S t r a n d S i z e

( i n c h e s )


( i n c h e s )

L e n g t h

L W D

W i d t h

S W D

D

e s i g n S i z e

( i n c h e s )

L W D

S W O

S t a n d a r d


S

W D

W i d t h

T h i c k -

n e s s

L W O

O v e r a l l

T h i c k -

n e s s

( i n . )

l b s .

p e r

1 0 0

S

q . f t .

% O p e n

A r e a

N

o . o f

D e s i g n s

p

e r f t .

S T A I N L E S S S T

E E L T Y P E 3 0 4 F L A T

T E N E D E X P A N D E D

M E T A L

1 / 2 " T H R O U G H

1 - 1 / 2 " D I A M O N D D E

S I G N S

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18-8

3003 H14

ALUMINUM EXPANDED METAL SHEETS


S t y l e

S T A N D A R D

S W D

L W D

S W

D

L W D

S W O

L W O

W i d t h

S W D

N

o . o f

D e

s i g n s

p e r f t .

( % )

O p e n

A r e a

T h i c k -

n e s s

O v e r a l l

T h i c k

n e s s

( i n )

D e

s i g n S i z e

(

i n c h e s )


( i n c h e s )

l b s

p e r 1 0 0

S q . f t .

3 / 1 6 " – . 0 3 2

2 3

B

B

. 2 0 0

. 5 0 0

. 1 6 6

. 4 3 7

. 0 2 0

. 0 3 2

. 0 6 8

6

0

5 2

½ " – . 0 5 1

2 7

4

8

. 5 0 0 1 . 2 0 0

. 3 7 5

. 9 3 8

. 0 9 4

. 0 5 1

. 1 5 8

2

4

7 0

½ " – . 0 8 1

4 4

4

8

. 5 0 0 1 . 2 0 0

. 3 7 5

. 9 3 8

. 0 9 6

. 0 8 1

. 1 8 6

2

4

6 0

¾ " – . 0 5 1

1 7

4

8

. 9 2 3 2 . 0 0 0

. 8 1 3

1 . 1 7 5

. 1 0 9

. 0 5 1

. 2 0 0

1

3

9 0

¾ " – . 0 6 4

2 2

4 - 8

8 - 4

. 9 2 3 2 . 0 0 0

. 8 2 3

1 . 6 6 0

. 1 1 1

. 0 6 4

. 2 0 0

1

3

7 5

¾ " – . 0 8 1

4 1

4

8

. 9 2 3 2 . 0 0 0

. 7 5 0

1 . 6 8 8

. 1 6 6

. 0 8 1

. 3 0 0

1

3

7 4

¾ " – . 0 8 1 L

2 7

4 - 8

8 - 4

. 9 2 3 2 . 0 0 0

. 7 5 0

1 . 6 8 0

. 1 1 0

. 0 8 1

. 2 0 0

1

3

7 6

¾ " – . 0 8 1 H

4 1

4 - 8

8 - 4

. 9 2 3 2 . 0 0 0

. 7 5 0

1 . 6 8 8

. 1 6 5

. 0 8 1

. 3 0 0

1

3

6 9

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GageSize

(inches)Hole Size(inches)

Wt.Per Sq. Ft.

(lbs.)

Wt.Per Sheet

(lbs.)

20 48 x 120 1/8" round 3/16 staggered centers .999 39.60

18 48 x 120 1/8" round 3/16 staggered centers 1.212 48.4848 x 120 1/4" round 3/8 staggered centers 1.200 48.00

16 48 x 120 1/8" round 3/16 staggered centers 1.500 60.0014 48 x 120 1/8" round 3/16 staggered centers 1.878 75.12

12 48 x 120 1/8" round 3/16 staggered centers 2.630 105.20

11 48 x 120 1/8" round 3/16 staggered centers 2.550 102.00

1/4" 48 x 120 1/4" round 3/8 staggered centers 6.150 246.001/4" 48 x 120 1/2" round 11/16 staggered centers 5.380 215.20

PERFORATED CARBON STEEL SHEETS Perforated Carbon Steel Sheets are steel sheets that have been subject to a

perforation process. Perforation is the process of punching or stamping

holes or other shapes into a material in a pattern or in sequence. Steel,

because of its ductility and qualities of strength, makes PerforatedCarbon Steel Sheets an excellent product for screening or architectural

use.

STEEL GRATINGSTANDARD MESH TYPESStock width of panels, 2' and 3'. Stock length panels 20' and 24'.

For 3/16" main bars 5/16" hexagonal cross bars are used. For 1/8" main bars 1/4"hexagonal bars are used.

19W4 19W2

15W4 15W2

CLOSE MESH TYPESStock width of panels, 2' and 3'. Stock length panels 20' and 24'.

For 3/16" main bars 5/16" hexagonal cross bars are used. For 1/8" main bars 1/4"hexagonal cross bars are used.


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STEEL GRATINGWEIGHTSSpecial prices are available upon request for cut lengths & widths and for fabrica-tion.

19W4 19W2 15W4 15W2

Main Bar Wt. Lbs. Wt. Lbs. Wt. Lbs. Wt. Lbs.

Size (sq. ft.) (sq. ft.) (sq. ft.) (sq. ft.)

3/4 x 1/8 3.9 4.4 4.7 5.3 3/4 x 3/16 5.6 6.2 6.9 7.5

1 x 1/8 5.0 5.5 6.1 6.7

1 x 3/16 7.2 7.8 8.9 9.6

1-1/4 x 1/8 6.1 6.6 7.5 8.1

1-1/4 x 3/16 8.9 9.5 11.0 11.6

1-1/2 x 1/8 7.2 7.7 8.9 9.4

1-1/2 x 3/16 10.5 11.2 13.1 13.7

1-3/4 x 3/16 12.2 12.8 15.2 15.8

2 x 3/16 13.9 14.5 17.3 17.9

2-1/4 x 3/16 15.5 16.1 19.4 20.0

2-1/2 x 3/16 17.2 17.8 21.4 22.0

SURFACESSMOOTH SURFACES

Smooth surface steel grating is available in a wide variety of materials for manyapplications.

SERRATED SURFACES

Serrated surfaces are available on many types of grating. The serrated surfaceprovides a safe, slip-resistant surface. These surfaces offer more secure footingwhere a variety of liquids such as oil, chemicals, or water are present.

SMOOTH SURFACE SERRATED SURFACE

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ProductWidths

AvailableType

AvailableWalkway

Galvanized 14ga

12ga

HR P&O 14ga

12ga

5052-H32 .080"

Aluminum .100"

2" Type *304 16ga 9-1/2"

Stainless 11-3/4"

4-1/2 Galvanized 14ga 24"

HR P&O 12ga

SAFETY GRATING PRODUCTS

GRIP STRUT® is a lightweight metalgrating designed for safety underfoot.The unique one-piece diamond shapedconstruction provides slip resistance in alldirections. GRIP STRUT® is ideally suitedfor all walking/working surfaces wheremud, ice, snow, grease, oil and detergentscreate slippery or hazardous conditions.

Heavy Duty GRIP STRUT® Safety Gratingproducts offer the advantages of regularGRIP STRUT® plus the capabilities for

greater loads and/or longer spans. HeavyDuty GRIP STRUT® walkways are ideal forprocess plants, reneries, grain elevators,conveyor walkways, underbridge inspectionwalkways, papermills, etc.

GRIP STRUT®

SAFETY GRATING Available Confgurations

Standard Lengths: 10’ and 12’.

Type 316 Stainless available upon special quote.

Special fabrication cutting or specialty congurations

available upon request and special quotation.

*Note: Stainless only available in plank form.

SideChannelsAvailable

GaugeAvailable

ProductWidths

Available

HEAVY DUTY GRIP STRUT®

SAFETY GRATING Available Confgurations

2” Galvanized 10ga 9-1/4”

2-1/2” HR P&O 13-3/4”

3” 23-1/4"

4” 27-3/4”

36”


24’, special order. Contact your Alro Sales Rep

Plain HRP&O Steel available upon request and special

quotation. Hot Dip Galvanized after fabrication is

available upon request or special order.



*Note: Stainless only available in plank form.

ChannelHeights

Available

ProductWidths

Available

GRIP STRUT® grating is commonly used for work platforms, industrial ooring,catwalks, balconies, storage areas, walkways, and stair treads.

Heavy Duty GRIP STRUT® is more competitive than ever against Bar Grating. Shorterlead times, 24-foot lengths, less support structure, and labor savings make it the most

unique formed-plank grating available.

TypeAvailable

1-1/2"

2"

2-1/2"

3"

4-3/4"

7"

9-1/2"

11-3/4"

18-3/4"

24"

GaugeAvailable

TypeAvailable

Note: 11gaand 9ga

are special

ordered.

Contact your

Alro Sales

Rep.

GaugeAvailable

ProductWidths

AvailableType

AvailableWalkway

5” Galvanized 10ga 24"

HR P&O 30"

36"

GaugeAvailable

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ProductWidths

Available

Alro offers a full range of standard and non-

standard Stair Tread products from Grip Strut®,

Heavy Duty Grip Strut®, Perf-O Grip®, Traction

TreadTM, and Grate-Lock. Products will be offered

with or without abrasive nosing.

Alro offers a large variety of ladder

rungs for use in different environ-

ments and industries. GRIP STRUT®

One-Diamond Ladder Rungs are

ideal in environments where safefooting is hard to come by. GRIP

STRUT® Ladder Rungs ensure

maximum slip resistance and safe

footing. Traction TreadTM Ladder

Rungs are ideal for use in hand-over-

hand ladder applications where

safe footing is also required.

Reconditioning material is offered as an

economical method of resurfacing worn and

unsafe oors. Down-turned edges allow the

grating to lie at and secure over existing

ooring.

Aeration Decking provides municipal waste

treatment plants with a highly efcient, low-

energy way to process efuents into usable

compost. In North America daily production

from municipally operated water treatment

plants yields well over 15,000 tons (dry basis)

of sludge. North America faces a growing

process while keeping operating costs at a

minimum. Aeration Decking can be the key-

stone for systems that transform waste into

usable by-product, while conserving energy.

GRIP STRUT®

Stair Treads, Ladder Rungs, Reconditioning Material

AERATION DECKING

Available Confgurations

2-1/2” 14GA Galvanized 9”

Steel

ChannelHeight

MaterialGauge


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1-1/2" Galvanized 11ga 5", 7", 10"

2" HR P&O 13ga 12", 18", 24"

2" Aluminum .125" 5", 7", 10", 12"

Traction TreadTM panels have a surface

of perforated raised buttons. The perfo-

rations allow spillage to drain and break

oil lm, detergent, and other slippery

agents away from the walking surface.

Traction TreadTM is ideal for pedestrian

trafc and the button design is the bestin the industry for allowing women in

heels, as well as a man in work boots,

to walk comfortably and safely over

the surfaces. This product is offered in

planks and 36” x 120” sheets. Traction

TreadTM services many applications

such as pedestrian walkways, scaffold

planking, mezzanines, stair treads, the

resurfacing of worn materials, etc.—

useful anywhere a light slip-resistant

ooring is required.

TRACTION TREAD

TM

FLOORINGPlank, Sheet and Ladder Rungs


Standard Lengths: 10’ (120”) Sheets.

Plank Lengths: 10’ and 12’.

Ladder Rung Length: 60”

Special fabrication, cutting or specialty

congurations available upon request

and special quotation.

Product Material Gauge


WidthChannelHeight

Perf-O Grip® is a plank metal grating offering

a slightly less aggressive surface than Grip

Strut®. Perf-O Grip® is made with a round

hole pattern. Perf-O Grip's® light weight and

resilient design makes the product easy to

handle and install producing a very economi-

cal installed cost.

PERF-O GRIP®

GRATING



Plain HRP&O Steel and Stainless sheet available

upon request and special quotation. Hot Dip Galva-

nized after fabrication is available upon request and

special order.



ChannelsHeights

AvailableTypes

Available

Widths

Available

Gauges

Available

WalkwayHeights

Available

5" Galvanized 11ga 24", 30", 36"

HR P&O

TypesAvailable

WidthsAvailable

GaugesAvailable

Note: HR P&O Planks arespecial ordered. Contact

your Alro Sales Rep.

Sheet HR P&O Steel 11ga 36” N/A

12ga

13ga

14ga

16ga

5052-H32 Aluminum .125" 36" N/A

Planks Galvanized 11ga 7" 2"

HR P&O Steel 13ga 10" (1-1/2" min.)

12”

5052-H32 Aluminum .125" 7" 2"

10"

12"

Ladder Galvanized 13ga 1-1/4” 1-1/2”

Rungs HR P&O Steel 1-5/8” 1-1/8”

5052-H32 Aluminum .125" 2-1/4” 1-1/2”

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Although roofs look durable, they were neverintended to be walked on. As the volume ofrooftop equipment keeps expanding, the wearand tear of mounting maintenance trafc canlead to leaks and premature roof replacement.Rooftop Walkway Systems solve these problemsto keep your roof leak free and long lived. Thepatented elevated Grip Strut® Rooftop WalkwaySystem is unlike others in that they are elevatedand discourage shortcuts and emphaticallydene a path that is visible even in heavy snow.This system is interchangeable with our differentwalking surfaces such as Perf-O Grip® andGrate Lock and is ideal for built-up roof systems.Grate-Lock RTWW systems are also available forany standing seam metal roof.

ROOFTOP WALKWAYS SYSTEMS


DURAGRATETM is produced in 3', 4' or 5' wide panels. The panels are available in8', 10' or 12' lengths. DURAGRATETM is produced by Strongwell and a stock item at

Alro Plastics. Available sizes include:

• 1"thick 1-1/2" - Square

• 1" thick 1" x 4" - Rectangular

• 1-1/2" thick 1-1/2" - Square

• 2" thick 2" - Square

Grids can be ordered with or without an epoxied and grit surface

Fiberglass Grids & Grating are stock items at Alro Plastics. To learn more about thealternatives Alro offers to using steel and metals refer to pages 20-1 thru 20-15.

DURAGRATETM

MOLDED FIBERGLASS GRATING

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FIBERGLASS GRATING (PULTRUDED)

Fiberglass Grating bars consist of two glass reinforcements. First, continuous glassroving is used for high longitudinal strength. Second, continuous strand mat is intro-

duced, primarily for transverse strength. The mat also provides a resin-rich surfacefor added corrosion resistance and helps prevent chipping and splitting from impact.Fiberglass Grating, in addition to the glass reinforcement, provides a synthetic sur-face veil to match the resin selection. The veil provides a greater corrosion capabilityfor harsh chemical environments and creates an ultra-violet barrier for continuousexposure outdoors.

PRODUCT APPLICATIONSBreweries, Chemical, Fire Equipment, Food Processing, Gas/Coal Fire/Nuclear Power,Marine Applications, Micro Electronics, Mining, Offshore Equipment, Petroleum Pro-duction, Plating Operations, Pollution Control, Pulp/Paper, Recreational Equipment,

Swimming Pools, and Water/Waste Water.

SPECIFICATIONSRESIN SYSTEMS • Isophthalic, Isophthalic Fire Retardant: Made with a premium-grade re

retardant isophthalic polyester resin which meets ASTM E-84, Class 1, FlameRating, and self-extinguishing requirements of ASTM D-635.

• Vinylester, Vinylester Fire Retardant: Made with a premium grade vinylesterresin system for severe corrosion applications also meeting ASTM E-84, Class1, Flame Rating, and self-extinguishing requirements of ASTM D-635.

SAFETY/NON-SKID SURFACESThe walking surfaces of Fiberglass Grating have a coarse epoxy grit bonded to boththe bearing bar and the ush top cross-rod. The patented ush-top design providesa greater non-skid surface area as well as improved appearance.

TYPICAL PROPERTIES• Corrosion resistant. • High strength. • Low thermal conductivity.

• Fire retardant. • Light weight. • Maximum unsupported spans.

• High impact strength. • Low maintenance. • Safety non-skid surface.

Alro Plastics maintains a large inventory with a diverse selection of high

quality materials ranging from commodity items to high performance materials.

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FIBERGLASS GRATING (MOLDED)

Molded Grating has many features to satisfy the needs and design requirementsof our customers:

• Corrosion Resistant: Resistant to nearly all industrial chemicals and will givelong life and low life cycle cost.

• Slip Resistant: The concave surface provides positive traction even whenwet, creating a safer work environment.

• Fire Retardant: All resin systems are re retardant Class I ASTM E-84 with zerofuel contribution.

• Non-Conductive: Creates a safety barrier for personnel in electricalapplications. Non-magnetic and non-sparking.

• Light Weight: The low weight makes it easy to install and remove without heavyequipment.

• Low Maintenance: The high corrosive resistance eliminates costlymaintenance.

RESIN SYSTEMSPremium Grade Polyester Resins

GLASS ROVINGRESIN SYSTEM

NON-SKID TOP

STANDARD GRATINGS Additional features and accessories:

• Gritted Top: An epoxy grit can be added to the top of the standard grating.

• USDA Approved Grating: Where incidental food contact may occur USDAapproved grating is available.

• Custom Colors: Contact Alro Plastics about custom colors.

• Seal Kits: All eld cuts should be sealed with a compatible resin.

•Standard Fire Retardant green •Extra Fire Retardant gray •Vinyl Ester Fire Retardant orange

(Other resin systems and colors are available on special order.)

DESCRIPTION STANDARD COLORS

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Ask your Alro Plastics Sales Representative about our

Fiberglass Grating and our other alternatives to using steel.

Your Source for Engineering Plastics• Sheet • Rod • Tube • Film • Proles • Machined Parts

DuragrateTM molded berglass grating is the chemical resistant

STANDARD GRATINGS

*Standard and Heavy Duty grades are available.

70% 1 Square 2.5 1½ x 1½ 3 x 10Mesh 4 x 12

69% 1 Rect. 2.5 1 x 4 3 x 10 Mesh 4 x 12

70% 1½ Square 3.75 1½ x 1½ 3 x 10 Mesh 4 x 12

72% 2 Square 4.0 2 x 2 4 x 12Mesh

TOP VIEWMESHSIZE

OPENAREA DEPTH PATTERN

APPROX

WT SQ FT

PANELSIZES

Alro Plastics

alro.com

Date post:	05-Jul-2018
Category:	Documents
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Expanded Metal and Grating

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