The Bulletin. 21 



MATERIALS REQUIRED FOR WIDE OR DOUBLE FRAMES. 



Sides, ends, rafters, posts. 



Estimating 23 frames, 100 feet long, per acre. 



Board 

 Feet. 



Front and back, 200 (12 inches by 1 inch) 200 



Ends, 2 (12 Inches by 1 inch by 16 feet) 32 



Rafters, 24 (2 inches by 2 inches by 17 feet) 136 



Posts, 54 (2 inches by 2 inches by 20 inches) 30 



Posts, 24 (2 inches by 2 inches by 24 inches) 16 



Total per frame 414 



23 by 414 feet equals 9,522, or approximately 10 M board feet per 

 acre. 



Estimating this material at $20 per M board feet, the wide 

 frames would cost in the neighborhood of $200 per acre. 



The sides and ends would be of clear heart pine, undressed, and 

 the posts and rafters of hard wood, undressed, preferably of oak. 



