Line the bottom board with the face of the rafters. It is rulable to space them 2" to 4" apart and continue this method until sheeting is completed. At the gable ends of the building, let the sheeting extend over the rafters the desired width of the plancier or eave.

To cut sheething boards to meet the hip or valley, take the hypotenuse of the base and rise of the common rafter with the base, and mark on the base for the hip and valley cut. (Fig. 43.) For the plumb cut of the sheeting boards for a hip and valley, take the length of the hypotenuse of the base 17" and rise of the hip rafter with the rise and mark on the rise for the plumb cut. (Fig. 44.)

Fig. 43

Fig. 44

The rules for cutting sheeting in valleys is used to cut eave and plancier boards that meet in an angle.