1. Same as gauging board.
2. A pitch board.
pitch board, gauge board
A template, usually a right triangle in shape; used as a pattern to lay out the outline of stairs or the like; in stair construction, the base of the triangle is the exact width of the treads of the steps, and the perpendicular is the height of the riser.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.