ABC of the Steel Square and Its Uses

by Fred. T. Hodgson

[Fig. 39], octagon jack. As the octagon miter on level surface is 5 and 12, it must raise same as common jack, and is, therefore, raised to length, or 14½, and 5 cut on length.

Fig. 40.

[Fig. 40], hip rafter, is also length and run, cut on length.

Fig. 41.

[Fig. 41]. To bevel top of hip take length and rise and mark on rise.

[Fig. 42] is another practical way, which is simply to lay the square on heel or hip. The illustration, explains itself.

Fig. 42.