Objective 22.02

Calculate the amount of materials needed for a construction project

Calculating Carpentry Materials

Many building materials are sold by the square foot or in units that combine square footage such as a square or a sheetSquare foot: 1 foot (12”) x 1 foot (12”) or 144 square inchesCalculate number of square feet by multiplying length x width (in feet)

Calculating Carpentry Materials

A 4’x8’ sheet of plywood is 32 square feetA square of shingles has 100 square feetOne story building costs can be estimated by using square feet x cost per square foot Examples 1000 square ft x

$10/square