Fig. 13. Steel Square used as a Pitch-Board
in Laying Out Stair String.
To cut a pitch-board, after the tread and rise have been determined, proceed as follows: Take a piece of thin, clear material, and lay the square on the face edge, as shown in [Fig. 13]. Mark out the pitch-board with a sharp knife; then cut out with a fine saw, and dress to the knife marks; nail a piece on the largest edge of the pitch-board for a gauge or fence, and it is ready for use.
[Fig. 14] shows the pitch-board pure and simple; it may be half an inch thick, or, if of hardwood, may be from a quarter-inch to a half-inch thick.
[Fig. 15] shows the pitch-board after the gauge or fence is nailed on. This fence or gauge may be about 1½ inches wide and from ⅜ to ¾ inch thick.
[Fig. 16] shows a sectional view of the pitch-board with a fence nailed on.
Fig. 14. Fig. 15. Fig. 16.
Showing How a Pitch-Board is Made.
Fig. 15 shows gauge fastened to long edge;
Fig. 16 is a sectional elevation of completed board.