Developed by Norman Chenier after years in the field, this is an easy-to-read, practical math guide to explain in real world terms how to do the math behind many field tasks. You will learn how to use scientific calculators, measuring, squaring and leveling, calculating and laying out angles, stairs, braces and sides, pipe saddles, and raftings, one and two point sketching, aligning walls and fences, and laying out decks.