To develop column 6, try a l0-foot length.

2'-4" = length of brace stake (fig. 4-5) converting to inches:

10'-0" = 10 x 12 = 120 inches

2'-4" = (2 x 12) + 4 = 28 inches

120 / 28 = 4 pieces, with 8" waste

Continued calculations will show that a 12-footer will supply 5 pieces with only 4 inches waste, but since

only 4 pieces are required the waste would be 2'-8". Therefore, the 10-foot standard length is selected (para

4-5**c**, 4-6, fig. 4-5).

Four pieces can be cut from a ten foot standard length, so 4 is the correct entry for column 7 of the take-off-

list (para 4-5**c**, 4-6, fig. 4-5).

The number of standard lengths required, the entry for column 8, is developed by dividing the figure in

column 3 (number of pieces) by the figure in column 7 (number of pieces per standard length) (para 4-6**b**(2)).

Note that item 7 (nominal size 2 x 6) is not identical with any other item, therefore cannot be consolidated

with any other (para 4-7**b**(3))

When items 2, 4, 5, and 6 are consolidated, the total number of 3-foot pieces becomes nine. Calculations

shown in paragraph 4-6**c**(2)) indicate that there is less waste in obtaining nine 3-foot pieces from 10-foot

lengths than from 8-foot lengths (para 4-6**c**(2)).

From table 4-1, a 10% waste allowance is included for dimension lumber two or more inches thick (para 4-8,

table 4-1).

Since 20 pounds of 8-penny nails are required for 1000 square feet of sheathing, then:

1500 = 1.5 MBF

1.5 x 20 = 30 lbs required (para 4-9**f**).

Grouping and arranging results in a completed bill of materials which facilitates requisitioning (para 4-10).