CHAPTER XL 

 FARM BUILDINGS. 



The total value of permanent buildings on farms in 

 1910 was over $16,000,000,000. Of this amount over 

 $3,500,000,000 were invested in farm buildings. When a 

 farmer wishes to build a house or a barn, he plans 

 it according to his wishes and needs, and engages a car- 

 penter, who prepares a bill of materials and an estimate 

 of the cost of the building. 



Bills of materials. An itemized statement of the lum- 

 ber and other supplies necessary for a building is called a 

 bill of materials. Lumber is sold at so much "per M," 

 meaning per 1,000 feet board measure. One foot board 

 measure (B. M.) is a piece of lumber having an area of 

 one square foot on one surface, and a thickness of not 

 more than 1 inch. The sign "x" means "by" ; the sign 

 " ' " means "feet," and the sign " " " means "inches." 



606. How many feet B. M. in 9 boards 8' x 2' and 1" 

 thick? 



607. In a %-inch board 6' x 10" ? 6' x 8" ? 6' x 16" ? 

 10' x 18" ? 



608. In a board or plank 24' x 18" x 3y 2 " ? 

 Process : 



18 inches = V/2 feet; 3^ inches must be taken as 4 inches. 

 24 X V/2 X 4 = 144. Ans. 144 feet B. M. 



609. 8'xl2"x4"? 16'x8"x2"? 24'x6"x4^"? 



610. 8' x 8" x 8"? 16" x 8" x 10"? 20' x 6^" x 



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