**The following are formulas to calculate the amount of material you'll need for a variety of building projects.**

**Concrete**

Width x Length x Height, divided by 27 = number of yards of concrete needed

**Foundation Masonry Block**

8" high / 16" long / 3/8" mortar normal joint height.

**Roofing**

Width x length, divided by 100 = number of squares of shingles needed

**Siding**

Width x Height, divided by 100 Square Feet = number of squares of siding needed

**Carpet**

Width of room x length of room, divided by 9 = number of square feet needed for room.

**Wood Siding**

Width of board minus distance of lapping = coverage of wood siding per board

Width of area to be sided x height of area to be sided, divided by coverage calculated above = lineal feet of siding you need.

**Brick**

7 bricks = one square feet of coverage

Width of area to be covered x height of area to be covered, divided by 7 = number of bricks needed.

**Elevation Conversion**

Elevation measured in 10ths per foot. 1 of elevation = one foot or 12" equals one foot.

Normal measurement 12 inches per foot.

**Convert Elevation to Inches**

One Foot of Elevation measurement equals 1.2 inches of normal measurements.

**Common Terms Used**

Board feet = (thickness (in inches) x width (in inches) x length (in inches)) divided by 12
Lineal feet = length only of board.

Find a Remodeling Expert

THIS ARTICLE IS PROVIDED 'AS IS' WITH NO WARRANTY OF ANY KIND. THE AUTHOR, THE SITE OWNER AND ITS AFFILIATES ASSUME NO LIABILITY FOR ERRORS OR OMISSIONS CONTAINED THEREIN OR FOR ANY USE OF THE INFORMATION CONTAINED IN THIS DOCUMENT. The article is for informational purposes only and is not a substitute for professional advice.