A B C OF THE STEEL SQUARE 



89 



and the length of the hip, 19% inches, on the 

 blade and the blade will give the side cut of the 

 hip. It would also be the side cut of the cor- 

 responding jack if it be a common rafter. 

 Seventeen is used for a foot run of the hip 

 rafter because the diagonal of a 12-inch square 

 is practically 17 inches. 



- 



Fig. 58. 



