If this operation is repeated 12 times, the blade of the square at the 

 first application of the arm will mark the places for cutting the rafter 

 to fit at the plate and the peak. Use this rafter as a guide for marking 

 the remaining rafters. 



When an eave projection is desired, draw a line the length of the rafter 

 equidistant from its edge and lay the square to this line instead of the 

 upper edge ; then the upper part of the rafter can be left to project beyond 

 the plate for the eaves. 



N 

 FIG. 58. Cross-section views oj a pen 12 feet deep 



Fig. 57 shows the heavy bracing and tying of the rafters of a combi- 

 nation roof made necessary until the frame is covered and capable of 

 self-support. 



A shed-roof house with pens 12 feet square 



It is conceded that fowls give a higher production when kept in small 

 flocks. For this reason, in addition to the fact that many farmers and 

 city poultry raisers have only a small number of fowls, the writers give 

 the dimensions, illustrations and cost of a building of two pens each 12 

 feet square. There is frequently a demand for even smaller houses and 

 pens. These dimensions could be reduced and the general construction 

 of the building kept the same. See Figs. 58, 59, 60. 



This style of house is one of the easiest to build. The shed roof 

 requires no bracing and the concrete floor is sanitary. The roofing paper 



