FARM BUILDINGS. 



173 



611. Find the number of feet B. M. in each of the fol- 

 lowing items : 



12 pieces, 2 x 6 in. x 18 ft. long. 



8 pieces, 2 x 6 in. x 16 ft. long. 

 54 pieces, 2 x 6 in. x 14 ft. long. 

 44 pieces, 2 x 6 in. x 12 ft. long. 

 90 pieces, 2 x 6 in. x 10 ft. long. 



4 pieces, 4x6 in. x 20 ft. long. 

 32 pieces, 2 x 4 in. x 10 ft. long. 

 30 pieces, 2 x 4 in. x 8 ft. long. 



SMALL BARN, 36 BY 40 FEET. 



Width three spans, 12 feet plus 12 feet, plus 12 feet equals 36 feet. Length four 

 spans, 10 feet plus 10 feet plus 10 feet plus 10 feet equals 40 feet. Height, 20 

 feet. Gables, 8 feet. Loft, 20 feet. Gable roof, one-third pitch. Vertical 

 siding, shingle roof. 



612. What is the total number of feet (B. M.) in this 

 bill of materials? 



613. At $45 per M, how much did this lumber cost ? 



