HW #5

WOOD, PLASTICS &

COMPOSITES

Prob 8-15Determine the cost to purchase and install all the 2 x 4 studs listed in Prob. 8-15. The wall is 8’-0” high. Windows are 4’-0” high and doors are 6’-8”. Headers over doors & windows are 2 ea. 2 x 12s nailed together. The lower sill is resting directly on concrete and therefore must be constructed of “treated” lumber. Use RS Means labor and equipment to install the members. You may use a power nailer, if available. Go to Home Depot or Lowes web sites to determine the best cost for all lumber. Include 25% tax on all labor, 6% sales tax on materials and 10% Overhead & Profit (O&P) in your answer. Use the Excel template handed out in class to calculate weight and total cost for the wall.

Total No. of StudsProb RS Means Item Item Description Calculations LF Inches Spacing

(in)Raw

MembersNo.

Members

8-15 Construct 100' x 8' frame wall

2x4 studs for walls Wall length = 100LF 100 1200 16 75 75

Add studs @ openings          

4 x corners Corners = 2 studs x 4 = 8 addl studs     8  

2 x intersections Intersections = 2 studs x 2 = 4 addl studs     4  

Extra studs for door openings Doors = 2 studs x 3 = 6 addl studs     6  

Extra studs for 4' window openings Windows < 6' = 4 x 6 = 24 addl studs     24  

Extra studs for 8' window opening Windows > 6' = 8 x 1 = 8 addl studs     8  

8 x Hold downs 8 x hold downs @ corners = 8 x 1 = 8 addl studs     8 58

06 11 10.40-5146 Total 2x4x8 for 100LF wall; pneumatic nailed Materials & installation (Home Depot) for 100LF 100       133

       

Add 2x4x8 for horizontal blocking Need 75 blocks x 16" = 1200 inches   16 75 1200

06 11 10.02-2005 Use Means 2x4 blocking; pneumatic nailed Total 8' blocking = 1200/96 = 13 studs (HD) 8 96     13

       

Add 2x4x10 for upper plate & sill        

06 11 10.40-5025 Upper plates = 2x4x10 lumber @ 10' each Wall length = (100LF x 2)/10 each = top plate (HD) 200   20  

         

06 11 10.40-5085 Lower sill = 2x4x10 treated lumber @ 10' each Wall length = 100LF/10' each sill; treated (HD) 100     10  

         

Add lumber for headers = 2 ea 2x12 per opening          

Header for 8' window (2x12x12') 2 x 12 x 12' = 2 ea. per window x 1 window (HD) 24     2  

Header for 4' window (2x12x12') 2 x 12 x 12' = 2 ea @ 4.5 per window x 4 windows 36     3  

Header for doors @ 3LF each (2x12x12') 2 x 12 x 12' = 2ea per door @3.5 x 3 doors 21     2  

06 11 10-2155 Total 2x12x12' (Couldn't find 10' so use 12') Total LF of 2 x 12" (Don't sell 2x12x10) 81     7  

         

Raw cost of wall          

Add sales tax on materials @6%          

Add labor tax @ 25%          

Subtotal all base costs + taxes          

Add OH&P on total base costs @ 15%          

Grand total          

Home Depot Materials

Blocking, Sills & Headers06 11 10.02-2005 Use Means 2x4 blocking; pneumatic nailed Total 8' blocking = 1200/96 = 13 studs (HD) 8 96     13

       

Add 2x4x10 for upper plate & sill        

06 11 10.40-5025 Upper plates = 2x4x10 lumber @ 10' each Wall length = (100LF x 2)/10 each = top plate (HD) 200   20  

         

06 11 10.40-5085 Lower sill = 2x4x10 treated lumber @ 10' each Wall length = 100LF/10' each sill; treated (HD) 100     10  

         

Add lumber for headers = 2 ea 2x12 per opening          

Header for 8' window (2x12x12') 2 x 12 x 12' = 2 ea. per window x 1 window (HD) 24     2  

Header for 4' window (2x12x12') 2 x 12 x 12' = 2 ea @ 4.5 per window x 4 windows 36     3  

Header for doors @ 3LF each (2x12x12') 2 x 12 x 12' = 2ea per door @3.5 x 3 doors 21     2  

06 11 10-2155 Total 2x12x12' (Couldn't find 10' so use 12') Total LF of 2 x 12" (Don't sell 2x12x10) 81     7  

         

Raw cost of wall          

Add sales tax on materials @6%          

Add labor tax @ 25%          

Subtotal all base costs + taxes          

Add OH&P on total base costs @ 15%          

Grand total          

Windows & DoorsWindows & doors

1 x 8' 96" double casement window

4 x 4' 48" double hung window

36" door 36" 6 panel interior door

30" door 30" 6 panel interior door

Total windows & doors

Add 6% on materials & 25% on labor

Add 15% OH&P on all costs

Grand total with windows & doors

  1 $689.75 $689.75 $20.00 $20.004 $254.93 $1,019.72 $20.00 $80.003 $107.10 $321.30 $20.00 $60.001 $96.85 $96.85 $20.00 $20.00  $2,127.62 $180.00

  $2,255.28 $225.00

     

$2,255.28$2,593.57

$4,121.63

Total Solution 8-15Calculations LF Inches Spacing

(in)Raw

MembersNo.

Members Matl

Cost/unit Material Cost Labor/LF Labor Cost Equip/unit Equip Cost Total Cost Total Cost Value Score

Wall length = 100LF 100 1200 16 75 75           Corners = 2 studs x 4 = 8 addl studs     8   Intersections = 2 studs x 2 = 4 addl studs     4   Doors = 2 studs x 3 = 6 addl studs     6   Windows < 6' = 4 x 6 = 24 addl studs     24   Windows > 6' = 8 x 1 = 8 addl studs     8   8 x hold downs @ corners = 8 x 1 = 8 addl studs     8 58 Materials & installation (Home Depot) for 100LF 100       133 $2.54 $337.82 0.41 $41.00 $378.82 $470.82 $378.82 5         Need 75 blocks x 16" = 1200 inches   16 75 1200 Total 8' blocking = 1200/96 = 13 studs (HD) 8 96     13 $2.54 $31.75 0.88 $88.00 $337.82 $44.25 $119.75 5                 Wall length = (100LF x 2)/10 each = top plate (HD) 200   20   $3.94 $78.80 $0.56 $112.00 $78.80 $190.80 5           Wall length = 100LF/10' each sill; treated (HD) 100     10   $4.57 $45.70 $0.56 $56.00 $45.70 $101.70 5                     2 x 12 x 12' = 2 ea. per window x 1 window (HD) 24     2   2 x 12 x 12' = 2 ea @ 4.5 per window x 4 windows 36     3   2 x 12 x 12' = 2ea per door @3.5 x 3 doors 21     2   Total LF of 2 x 12" (Don't sell 2x12x10) 81     7   $17.78 $124.46 $1.49 $120.69 $124.46 $245.15 5                     $618.53 $417.69 $764.03 $1,036.22           0.06 $37.11 $37.11           0.25 $104.42 $104.42           $1,528.06 $2,213.97 5           0.15 $332.10           $1,528.06 $2,546.07 15                     96" double casement window         1 $689.75 $689.75 $20.00 $20.00 48" double hung window         4 $254.93 $1,019.72 $20.00 $80.00 36" 6 panel interior door         3 $107.10 $321.30 $20.00 $60.00 30" 6 panel interior door         1 $96.85 $96.85 $20.00 $20.00 Total windows & doors           $2,127.62 $180.00 Add 6% on materials & 25% on labor           $2,255.28 $225.00 $2,255.28 $2,480.28 Add 15% OH&P on all costs           $2,593.57 $2,852.32 5                     $4,121.63 $5,398.39 5          

Calculations LF Inches Spacing (in)

No. Members Matl

Cost/Unit Material Cost Labor/unit Labor Cost Equip/unit Equip Cost Total Cost Total Cost

Probs 8-22, 23, 24, 25

Determine the cost to purchase and install all the 2 x 4 studs listed in Prob. 8-22. The wall is 8’-0” high. Windows are 4’-0” high and doors are 6’-8”. For closet doors use bi-fold doors, if not listed in RS Means, go to Home Depot or Lowes on-line. Use RS Means labor and equipment to install the members. You may use a power nailer, if available. Go to Home Depot or Lowes web sites to determine the best cost for all lumber. The lower sill is resting directly on concrete and therefore must be constructed of “treated” lumber. Include 25% tax on all labor, 6% sales tax on materials and 10% Overhead & Profit (O&P) in your answer. Use the Excel template handed out in class to calculate weight and total cost for the wall.

Prob RS Means Item Item Description Calculations LF Inches Spacing (in)

No. Members Matl

Cost/Unit Material Cost Labor/unit Labor Cost Equip/unit Equip Cost Total Cost Total Cost

8-15 Construct 8' frame wall house

Total LF of exterior walls Ext walls = 24+35+17+7+2+33 = 118LF 118 5

Interior walls room #1 Int walls = 12+13+2+2.5 = 29.5LF 29.5

Interior walls room #2 Int walls = 12+2+2.5 = 16.5LF 16.5

Interior walls room #3 Int walls = 17+7.75+3.75 = 28.5 LF 28.5

Interior walls room #4 Int walls = 7 7

Total LF of interior walls 81.5

200

 

2x4 studs for all walls Wall length = 200LF   2394 16 150   5

         

Add studs @ openings          

7 walls w/o corner Walls no corner 7        

8 x corners Corners = 2 studs x 8 = 16 addl studs 16        

14 x intersections Intersections = 2 studs x 14 = 28 addl studs 28        

Extra studs for openings Doors = 2 studs x 8 = 16 addl studs 16        

Extra studs for openings Windows < 6' = 4 x 6 = 24 addl studs 24        

Extra studs for openings Windows > 6' = 1 x 8 = 8 addl studs 8        

Total LF of studs to add 99 1188 16 74   5

         

06 11 10.40-5146 Total 2x4x8 studs needed for 100LF wall       224   $2.98 $667.15 $0.41 $3.28 $667.15 $670.43 5

       

06 11 10.26-1400 Add for horizontal blocking 200LF blocking / 8 = 25 = 25 extra studs 200 8 25   $2.98 $74.50 $0.89 $0.00 $74.50 $74.50 5

       

06 11 10.32-4000 Upper sills = 2x4x12 lumber @ 12' each Wall length = 118LF x 2 sills for top plate 236 8 30   $5.48 $161.66 $0.89 $178.00 $161.66 $339.66 5

         

06 11 10.32-5065 Lower sill = 2x4x12 treated lumber @ 12' each Wall length = 118LF 118   8 15   $5.97 $88.06 $0.98 $231.28 $88.06 $319.34 5

         

Add lumber for headers = 2 ea 2x12 per opening          

Header for 6' window (2x12x12') 2 x 12 x 12' = 2 ea. per window x 1 window (use 12') 16     2   $17.78

Header for doors @ 3LF each (2x12x12') 2 x 12 x 12' = 1 ea per door x 5 doors (6' per door) 24     5  

Header for closet doors @ 6LF each (2x12x12) 2 x 12 x 12' = 1 per door x 3 doors 36     3  

Header for 3' & 4' window (2x12x10') 2 x 12 x 12' = x 4 windows = 8lf per window x 4 = 24LF 24     2  

Total 2x12x12' 100     12   $17.78 $213.36 $1.49 $149.00 $213.36 $362.36 5

         

06 12 10.10-0100 Add for 4'x8' OSB sheathing of exterior walls Exterior walls = 118LF 118   4 30   $8.95 $264.03 $0.00 $264.03 5

OSB SF = 118LF x 8' = SF ext walls for labor 944         $0.59 $556.96 $0.32 $302.08 $556.96 $859.04 5

Total materials & labor           $1,468.75 $1,118.52

Add sales tax on materials @6%           $0.06 $88.13 $0.00 $88.13

Add labor tax @ 25%           $0.25 $279.63 $0.00 $279.63

Subtotal all base costs + taxes           $1,761.69 $3,257.11 5

Add OH&P on total base costs @ 15%           $0.15 $0.00 $488.57

Grand total           $1,761.69 $3,745.67 5

 

Total 115

 

                                Percentage 100%

That’s All