The Bulletin. 23 



MATERIALS REQUIRED FOR SINGLE OR NARROW FRAMES. 



Sides, ends, rafters, posts. 



Estimating 36 frames, 100 feet long, per acre. 



Board 

 Feet. 



Front, 100 ( 12 inches by 1 inch ) 100 



Back, 200 (12 inches by 1 inch) 200 



Back, 100 (6 inches by 1 inch) 50 



Back, 200 (3 inches by 1 inch) 50 



Ends, 2 (12 inches by 1 inch by 9 feet) 18 



Back, 2 (9 inches by 1 inch by 9 feet) 14 



Rafters, 17 (2 inches by 1 inch by 9 feet) 25 



Posts, 17 (2 inches by 2 inches by 40 inches) 19 



Posts, 17 (2 inches by 2 inches by 20 inches) 10 



Total per frame 486 



36 by 486 feet equals 17,496 board feet per acre. 



At $20 per M boar4 feet, the narrow frames would cost ap- 

 proximately $350 per acre. 



