A B C OF THE STEEL SQUARE 



17 



Remarks. To obtain the lengths and cuts be 

 careful to use the figures under whatever figure 

 jour roof raises to the foot. If your roof 

 raises 12 inches to the foot, or half pitch, look 

 under 12, and so on in all cases. In cutting 

 jack rafters allow for half the thickness of hip 

 or valley rafters as lengths given on square 

 are to center lines. 



Note. The figures on the square, giving side 

 cuts of jacks, will also give the correct miter 

 cuts for moulding in the valley at the junction 

 of two gables, also miter cuts for gable mould- 

 ings where it intersects with level mouldings at 

 the end of building. 



The figures giving cuts of sheathing in valley 

 or hip also give cuts for mitering level planceer 

 with gable planceer, also the miter cuts where 

 two gable planceers intersect, also the cut for 

 planceer on gable end- 



To obtain the bottom and top cuts of hip or 

 valk-\ r rafter use the figure 17 on body, and 

 whatever figure your roof raises to the foot on 

 tongue. This will give you the correct cuts in 

 all cases. 



To obtain the bottom and top cuts of common 

 rafters and jack rafters use the figure 12 on 

 body, and whatever figure your roof raises to 

 the foot on tongue. This gives correct cuts in 



