FARM STRUCTURES 



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The Wing Joist Frame. The Wing joist frame is made 

 entirely of 2-inch lumber. The frame consists of bents or 

 sections placed at intervals of 10 to 16 feet. The wall posts 

 usually have five pieces of 2-inch lumber below the mow, two 

 of which are continuous, and extend to the plate on which the 

 rafters rest. Girders running across the barn from post to 

 post are usually made of three pieces of 2-inch lumber. A 



T 



Fig. 289. A sketch of the Wing joist barn frame. 



diagonal brace is placed from the top of the post supporting 

 the plate to an inside post to care for the thrust of the rafters. 

 Vertical siding is usually nailed to girts on the outside of 

 the posts. Plates for the rafters are made of two pieces of 2- 

 inch lumber in the form of a box. Iron rods are sometimes 

 used to brace the plates, but wooden braces are preferable, 



