[13] This value would appear high if compared with Table VI, _Estimating and Calculating Quantities_, Part 1, but this table represents ideal conditions, where there are no delays, mistakes, legitimate office expenses, nor foreman's time included. _Summary_ The amount of material, as previously estimated, is 18,578 ft. B. M., which, at $40.67 per M, will make the total cost of framing $755.57. SHEATHING _Quantities_ FEET B. M. Main roof, 2,200 sq. ft. × 1 in 2,200 Tower roof, 370 sq. ft. × 1 in 370 Porch roof, 637 sq. ft. × 1 in 637 Outside walls, laid diagonally, 2,417 sq. ft. + 10 per cent. 2,659 ----- Total sheathing 5,866 SHINGLES _Quantities_ Area to be covered (see wall sheathing), 2,417 sq. ft.= 24.2 squares Shingles, 4 in. wide, and 5 in. exposure, number per square 720 Number of shingles required, 24.2 × 720 17,424 Add 5 per cent. for waste 871 ------ Total shingles 18,295 _Cost_ The cost of sheathing in place is assumed to be the same as that for hemlock lumber, $40.67 per M. The total sheathing is 5,866 square feet, which, at $40.67 per M, will make the cost of sheathing $238.57. The cost of shingles is based on the following analysis of the cost of 1,000 shingles in place: 1,000 shingles XXXX $ 5.50 [14] Labor: one man can lay about 700 shingles per day; wages being $3.20, 1,000 will cost 4.57 Nails (about) .25 ----- Cost per thousand $10.32 [14] Usually a man can lay more than 700 shingles per day, but the roof under consideration is very much cut up. From the preceding estimate, the number of shingles required is 18,295, which, at $10.32 per 1,000, will make the cost of shingles in place $188.80. _Summary_ Sheathing $238.57 Shingles 188.80 ------- Total cost of sheathing and shingles $427.37