8 



BULLETIN 277, U. S. DEPABTMENT OF AGEICTJLTTJEE. 



Walls. — A blank wall of brick not less than 17 inches in thickness * 

 should separate each compartment. This wall should be parapeted 

 above the roof at least 3 feet, and the parapets should be capped with 

 durable coping. The wall and parapet should extend 3 feet beyond 

 the frame end walls. Division walls forming a T instead of extending 

 beyond the frame end walls would be a desirable improvement. 

 Outside end walls should be constructed of clapboards (weather 

 boards) securely nailed to posts and studding, which render the wall 



Fig. 1. — Closed cotton warehouse, compartments limited to 000 bales capacity — detached. 



spark proof and weatherproof. All woodwork exposed to the weather 

 should be painted or whitewashed. When the end of the warehouse, 

 which is formed by the outer side walls of the end compartments, is 

 exposed, this wall should be of brick at least 13 inches thick and 

 coped in the same manner as the division walls. 



Floors. — Floors should be preferably of concrete, but may be of 

 earth, brick, or some other incombustible material. (See discussion 

 of floors on p. 32.) When the floor is elevated to the height of the 

 car floor, with frame platforms extending across the ends of the com- 

 partments, the division walls should be built from the ground to the 



1 The thickness of walls referred to in all of the standards are for one-story buildings. For thickness 

 required in buildings of grcator height, see table on p. 32. 



