FARM BUILDINGS 



335 



BARNS 



Frame. Barns may be classified according to the type 

 of framing used in their construction as timber and plank. 

 The plank frame barn with plank trusses is recommended, 

 or that without the trusses, known as the balloon frame 

 (Fig. 265.) The timber frame is not so popular as it was at 

 one time. The plank trusses and balloon frame both lend 

 themselves to the use of lighter-dimension lumber, provide 

 more open haymow space, and usually cost less than the 

 timber frame. 



Use. Barns may also be classified according to their 

 use, as horse, dairy, general-purpose, feed, and sale. Any 

 of these barns may be constructed in the simple rectangular 



Fig. 266. Floor plan of a general-purpose barn. When used in a dome or 



arch-roofed barn and no posts are used in the stall room, the load is 



carried on trusses indicated by dotted lines 



shape, L-shaped, T-shaped, H -shaped, with or without 

 side sheds, six- or eight-sided, or round. The limit of the 

 width of a barn is two rows of stalls, together with feeding 

 and cleaning alleys. This width is about 34 feet. Added 



