342 



Rural Architecture. 



when the barn is made cylindrical in form and the studding 

 set upon the circumference of a circle as represented in 

 Figs 148 and 149. In this type of barn not only is the 

 smallest number of studding required to form the outer 



FIG. 149. Showing frame and general plan of a cylindrical barn. A, 

 driveways behind cattle; B, feed alley; C, platforms for cattle. 



part of the frame but smaller sizes can be used, for the 

 reason that every board in the siding is a portion of a hoop 

 which makes spreading impossible, while at the same time 

 they are arched against the wind and take its pressure with 

 a crushing stress. 



With barns of this type 2x4 studding set 2 feet apart 

 have ample strength for all diameters up to 40 feet and 2x6 

 studding is large enough for barns 40 to 100 feet in diam- 

 eter. 



