TWO-THIRDS SPAN LAYING HOUSE 135 
This material will cost approximately $217.00; for 48 linear 
feet will cost $4.52 per running foot; or $0.28 per sq. ft. for the 
area of 768 sq. ft. Allowing 4 sq. ft. per bird, the cost per bird 
is $1.12. 
Two-thirds Span Laying House.—Figures 88a and 88) show 
drawings of a single section of the long laying house at the Michi- 
gan Agricultural college, each section being eighteen feet square, 
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Courtesy Michigan Agricultural College. 
Fie. 88b.—Working plans of laying house with two-thirds span roof.—Floor plan of one 
section. 
thus accommodating sixty-five birds. The sills are made of two 
2 x 6 inch pieces and the plates of two 2x 4 inch. The front is 
seven feet eight inches high and the back four feet eight inches; 
the studs are seven feet and four feet long, respectively. The roof 
is of combination type, being comparatively steep, having one 
foot rise to every two feet horizontal run.. Shingles are used instead 
of prepared roofing, being adapted to the steep roof. No alleyway 
is used in this house, and the pens are connected by a series of 
