Estimating the Carpentry and Framing Work
Description
This section is from the book "A Treatise On Architecture And Building Construction Vol4: Plumbing And Gas-Fitting, Heating And Ventilation, Painting And Decorating, Estimating And Calculating Quantities", by The Colliery Engineer Co. Also available from Amazon: A Treatise On Architecture And Building Construction.
Estimating the Carpentry and Framing Work
67. In estimating carpentry work, it is advisable to make a tabulated list of the various sizes of joists, rafters, etc., giving the number and dimensions of each set. Thus any error in calculation or change in price can be corrected with little difficulty.
Floor Framing, First Story.
Lineal Ft. | Ft B. M. | |
Joists, 3" x l0"; 2 1/2 ft. B. M., per lineal ft.: | ||
6 pieces, each 14' 6"....... | 87.00 | |
2 pieces, each 15' 3"....... | 30.50 | |
1 piece, 16' 3"....... | 16.25 | |
5 pieces, each 17' 6"....... | 87.50 | |
1 piece, 12' 6"....... | 12.50 | |
6 pieces, each 11' 0".......... | 66.00 | |
1 piece, 9' 6"....... | 9.50 | |
18 pieces, each 10' 6".............. | 252.00 | |
1 piece, 11' 6"....... | 11.50 | |
3 pieces, each 10' 6"....... | 31.50 | |
1 peice, 9' 4".................. | 9.33 |
Lineal Ft. | Ft. B. If. | |
6 pieces, each 24' 0"....... | 144.00 | |
1 piece, 11' 4"....... | 11.33 | |
2 pieces, each 20' 6"....... | 41.00 | |
6 pieces, each 20' 0"....... | 120.00 | |
4 pieces, each 21' 0"........... | 84.00 | |
2 pieces, each 7' 0"....... | 14.00 | |
2 pieces, each 13' 0"....... | 26.00 | |
1 piece, 10' 0"....... | 10.00 | |
Total............ | 1,063.91 | 2,659.78 |
Floor Framing, Second Story. | ||
Lineal Ft. | Ft. B. M. | |
Girder, 6"X l2"; 6 ft. B. M., per lineal ft.: | ||
1 piece, 8' 9"........... | 8.75 | 52.50 |
Joists, 2" x l0"; 1 2/3 ft. B. M., per lineal ft.: | ||
15 pieces, each 14' 0"....... | 210.00 | |
2 pieces, each 15' 6"......... | 31.00 | |
5 pieces, each 17' 0"........ | 85.00 | |
3 pieces, each 15' 0"....... | 45.00 | |
14 pieces, each 16' 0"....... | 224.00 | |
2 pieces, each 7' 0"....... | 14.00 | |
2 pieces, each 10' 0"....... | 20.00 | |
4 pieces, each 11' 0"....... | 44.00 | |
7 pieces, each 24' 0"....... | 168.00 | |
3 pieces, each 20' 6"....... | 61.50 | |
4 pieces, each 12' 6"....... | 50.00 | |
2 pieces, each 13' 6"....... | 27.00 | |
Total............ | 979.50 | 1,632.50 |
Joists, 3" X 10"; 2 1/2 ft. B. M., per lineal ft: | ||
(Headers) 2 pieces, each 8' 9"..... | 17.50 | |
2 pieces, each 6' 0"........ | 12.00 | |
5 pieces, each 9' 9"........ | 48.75 | |
11 pieces, each 19' 6"....... | 214.50 | |
292.75 | 731.87 | |
Floor Framing, Attic.
Lineal Ft. | Ft B. M. | |
Joists, 2"X l0"; 1 2/3 ft. B. M., per lineal ft.: | ||
15 pieces, each 14' 0"....... | 210.00 | |
2 pieces, each 15' 6"....... | 31.00 | |
5 pieces, each 17' 0"....... | 85.00 | |
3 pieces, each 15' 0"....... | 45.00 | |
14 pieces, each 16' 0"....... | 221.00 | |
2 pieces, each 7' 0"............. | 14.00 | |
2 pieces, each 10' 0"....... | 20.00 | |
4 pieces, each 11' 0"....... | 44.00 | |
7 pieces, each 24' 0"....... | 168.00 | |
3 pieces, each 20' 6"....... | 61.50 | |
4 pieces, each 12' 6"....... | 50.00 | |
2 pieces, each 13' 6"....... | 27.00 | |
Total............ | 979.50 | 1,632.50 |
Joists, 3"X10"; 2 1/2 ft. B. M., per lineal ft.: | ||
2 pieces, each 8' 9"....... | 17.50 | |
2 pieces, each 6' 0"....... | 12.00 | |
5 pieces, each 9' 9"....... | 48.75 | |
11 pieces, each 19' 6"....... | 214.50 | |
Total............ | 292.75 | 731.87 |
Floor Framing, Front Porch.
Lineal Ft | Ft B. M. | |
Joists, 3" x 9"; 2 1/4 ft. B. M., per lineal ft.: | ||
3 piece, 7' 0" | 21.00 | |
1 piece, 6' 9"....... | 6.75 | |
2 piece, each 10' 0" | 20.00 | |
1 piece, 8' 6"....... | 8.50 | |
Total............ | 56.25 | 126.56 |
Lineal Ft | Ft B. M. | |
Joists, 2" X 6"; 1 ft. B. M., per lineal ft.: | ||
2 pieces, each 21' 6"....... | 43.00 | |
2 pieces, each 19' 3"....... | 38.50 | |
4 pieces, each 8' 0" | 32.00 | |
1 piece, 10' 3"....... | 10.25 | |
6 pieces, each 9' 0" | 54.00 | |
2 pieces, each 4' 6"....... | 9.00 | |
5 pieces, each 6' 0" | 30.00 | |
4 pieces, each 5' 0" | 20.00 | |
3 pieces, each 2' 0" | 6.00 | |
3 pieces, each 9' 0" | 27.00 | |
Total............ | 269.75 | 269.75 |
Floor Framing, Back Porches.
Lineal Ft. | Ft B. M. | |
Joists, 2" X 6"; 1 ft. B. M., per lineal ft.: | ||
2 pieces, each 21' 0"....... | 42.00 | |
3 pieces, each 8' 0"....... | 24.00 | |
Total.......... | 66.00 | 66.00 |
Joists, 3" x 6"; 1 1/2 ft. B. M., per lineal ft.: | ||
5 pieces, each 5' 9" | 28.75 | |
12 pieces, each 6' 9"....... | 81.00 | |
1 pieces, each 8' 6" | 8.50 | |
2 pieces, each 3' 6"....... | 7.00 | |
Total............ | 125.25 | 187.87 |
Bridging.
Lineal Ft | Ft B. M. | |
2"X 4"; 2/3 ft. B. M., per lineal ft.: | ||
First floor, 170 pieces, each 1' 6".. | 255.00 | |
Second floor, 138 pieces, each 1' 6". | 207.00 | |
Third floor, 138 pieces, each 1' 6". | 207.00 | |
Total............ | 669.00 | 446.00 |
Main Roof Framing.
Lineal Ft. | Ft. B. M. | |
Rafters, 2"X 6"; 1 ft. B. M., per lineal ft.: | ||
15 pieces, each 20' 0"........... | 300.00 | |
14 pieces, each 19' 3"........... | 269.50 | |
1 piece, 18' 0"........... | 18.00 | |
2 pieces, each 16' 0"........... | 32.00 | |
2 pieces, each 14' 0"........... | 28.00 | |
1 piece, 13' 4"........... | 13.33 | |
3 pieces, each 10' 6"........... | 31.50 | |
3 pieces, each 8' 6"........... | 25.50 | |
1 piece, 6' 9"........... | 6.75 | |
3 pieces, each 5' 0"........... | 15.00 | |
3 pieces, each 3' 0"........... | 9.00 | |
4 pieces, each 17' 0"........... | 68.00 | |
1 piece, 12' 6"........... | 12.50 | |
1 piece, 10' 9"........... | 10.75 | |
2 pieces, each 9' 0"........... | 18.00 | |
1 piece, 7' 0"........... | 7.00 | |
18 pieces, each 9' 6"........... | 171.00 | |
2 pieces, each 13' 0"........... | 26.00 | |
2 pieces, each 7' 9"........... | 15.50 | |
2 pieces, each 6' 6"........... | 13.00 | |
4 pieces, each 3' 6"........... | 14.00 | |
2 pieces, each 2' 0"........... | 4.00 | |
4 pieces, each 8' 0"........... | 32.00 | |
2 pieces, each 11' 0"........... | 22.00 | |
8 pieces, each 5' 3"........... | 42.00 | |
1 piece, 6' 0"........... | 6.00 | |
8 pieces, each 11' 0"........... | 88.00 | |
Total........... | 1,298.33 | 1,298.33 |
Valley rafter, 3" X 10"; 2 1/2 ft. B. M. per lineal ft.: | ||
1 piece, 24' 6".......... | 61.25 | |
Ridge plates, 2" x l0"; 1 2/3 ft. B. M., per lineal ft.: | ||
Lineal Ft. | Ft. B. M. | |
1 piece, 23' 6".......... | 23.50 | |
1 piece, 29' 3".......... | 29.25 | |
1 piece, 9'0".......... | 9.00 | |
Total............ | 61.75 | 102.92 |
Plates, 3"X 6"; 1 1/2 ft. B. M., per lineal ft.: | ||
4 pieces,each 10' 6"...... | 63.00 | |
Octagonal post, 6" X 6" X 3'..... | 9.00 |
Porch-Roof Framing.
Lineal Ft | Ft. B. M. | |
Rafters, 2"x 6"; 1 ft. B. M., per lineal ft.: | ||
2 pieces, each 9' 6"....... | 19.00 | |
22 pieces, each 8' 6"....... | 187.00 | |
4 pieces, each 6' 6"....... | 26.00 | |
8 pieces, each 7' 6".......... | 56.00 | |
2 pieces, each 11' 6"........... | 22.00 | |
Total............ | 310.00 | 310.00 |
Rafters, 2"X 5"; 5/6 ft. B. M., per lineal ft.: | ||
27 pieces, each 8' 0"......... | 216.00 | |
8 pieces, each 3' 6"......... | 52.00 | |
2 pieces, each 10' 6"....... | 21.00 | |
2 pieces, each 3' 0"....... | 6.00 | |
2 pieces, each 3' 6"........ | 7.00 | |
Total............ | 302.00 | 251.65 |
Plate, 5"X10"; 4 1/6 ft. B. M., per lineal ft.: | ||
5 pieces, each 15' 0"..... | 75.00 | 312.50 |
Sills, 3"X5"; l 1/4 ft. B. M., per lineal ft. | ||
2 pieces, each 10' 0"....... | 20.00 | |
5 pieces, each 9' 0"........... | 45.00 | |
Total............ | 65.00 | 81.25 |
Wall Studding.
Lineal Ft. | Ft. B. M. | |
Wall plates, 4"x ll"; 3 2/3 ft. B. M., per lineal ft.: | ||
10 pieces, each 18' 0"....... | 180.00 | 660.00 |
Studs, 2"x5"; 5/6 ft B. M., per lineal ft.: | ||
63 pieces, each 21' 0"....... | 1,323.00 | |
106 pieces, each 12' 0".....___ | 1,272.00 | |
20 pieces, each 20' 0"....... | 400.00 | |
10 pieces, each 8' 6"....... | 85.00 | |
Total............ | 3,080.00 | 2,566.66 |
Partition Studding.
Lineal Ft. | Ft. B. M | |
First floor, 2"x 4"; 2/3 ft. B. M., per lineal ft.: | ||
Studs, 160 pieces, each 9' 9".... | 1,560.00 | |
Sills, 16 pieces,each 15' 0"....... | 240.00 | |
Total............ | 1,800.00 | 1,200.00 |
Second floor, 2"x 4"; 2/3 ft. B. M., per lineal ft.: | ||
Studs, 180 pieces, each 9' 9".... | 1,755.00 | |
Sills, 10 pieces, each 15' 0".... | 150.00 | |
Total............ | 1,905.00 | 1,270.00 |
Attic, 2" X 4"; | ft. B. M., per lineal ft.: | ||
Studs, 54 pieces, each 8' 9"...... | 472.50 | |
Studs, 133 pieces, each 6' 6".... | 864.50 | |
Total............ | 1,337.00 | 891.33 |
Miscellaneous.
Lineal Ft. | Ft. B. M. | |
Lookouts: | ||
50 pieces, each 3" X V X 2'..... | 25.00 | |
37 pieces, each 6" X 1" X 2'..... | 37.00 | |
Furring, for brick walls, 1"X 2"; 1/6 ft. | ||
B. M., per lineal ft.: | ||
125 pieces, each 11' 0"...... | 1,375.00 | 229.16 |
Grand total of framing. | 17,906.25 |
Cost.
The cost of the framing is estimated with the following analysis as a basis:
Cost of 1,000 Feet B. M. of Hemlock. (Including framing.)
1,000 ft. of hemlock............... | $14.00 |
Nails and spikes, allowing 100 lb. to 3,000 ft. of lumber, at $1.80 per 100 lb.......... | |
.60 | |
Labor, taking 50 per cent. of the cost of material as cost of framing........... | |
7.00 | |
Cost per thousand feet B.M.............. | $21.60 |
Summary.
The amount of material, as previously estimated, is 17,906.25 ft. B. M., which, at $21.60 per M, will make the total cost of framing........ | |
$386.77 |
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