**CALCULATING BOARD FEET**

A board foot is the standard industry measure of wood measuring 12”x 12” by 1” thickness. Usually only lumber is sold in board feet.

Equation: Board Feet = rough width x rough thickness / 12”

Example: A beam measuring 4”x 6”x 10’ is 4”x 6” / 12” x 10’ = 20 Board Feet

**CALCULATING SQUARE FEET**

This is the amount of material required to cover one square foot of wall or floor space, disregarding the thickness of the material.

Equation: Square Feet = width x length of space (wall or floor)

Example: A room measuring 12’x 15’ is 12’x 15’ = 180 Square Feet

Elmwood uses the “finished width” of flooring to figure square feet. Actual face widths vary from the width of the floor. For example, a 9” width floor will have an actual face width of 8-1/2”.

**OTHER USEFUL INFORMATION**

Area of a triangle = ½ base x perpendicular height.

Area of a circle = π (3.14) x radius squared or diameter squared x .7854.

Area of a square = length x width.

Length of one side of a square x 1.128 = the diameter of an equal circle.

The capacity of a pipe = diameter squared (in inches) x the length (in inches) x .0034. Doubling the diameter of a pipe or cylinder increases its capacity 4 times.