# Usefulness of construction formulas and equations for building projects

The formulas & equations are essential for construction professionals to work out the quantities as well as cost & subtotals of building **material**. These formulas can be used in a wide array of construction projects and design applications which range from **reinforced concrete**, bridge construction, highway design etc.

A formula refers to equation demonstrating one variable as an amalgamation of other variable(s) with the use of algebraic operations like add, subtract, multiply, divide, raise to a power, apply the natural logarithm as well as the cosine, or other mixture of operations.

Various issues related to **construction** can be easily resolved with proper application of these formulas.

The insight of the construction industry will be enhanced with professionalism and performance through effective use of formulas.

**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.

**(b) Ultrasonic pulse velocity test** (theconstructor.org)