First Line Sales
Construction Estimating Formulas & Useful Information
Formulas, equations, tables, facts, specifications and
Measure of Dimensions, Theorem ▪ Formulas, Rectangles, Squares, Triangles & Circles ▪ Board Feet Concrete Estimating ▪ Decimal and Metric Equivalents ▪ Weights, etc. ▪ Metrics ▪ Energy, Electric, Insulation ▪ Drywall Estimating, Door Handing
7. Concrete: Concrete is usually measure in cubic yards. A cubic yard is 3' wide x 3' long x 3' thick. 3' x 3' x 3' = 27 cubic feet. 27 cubic feet = 1 cubic yard.
The formula is: L' x W' x T' ÷ 27 = cubic yards.
One cubic yard covers 324 square feet at 1" thickness.
One cubic yard is equal to approximately 40 bags of 80 pound concrete mix (+/- .675 cu' per bag).
The table below shows how many (approx.) 80 pound bags of concrete mix it will take to fill these tubes used to construct concrete piers, etc.
One 80 pound bag of concrete mix will cover an area approximately 2' x 4' x 1'.
Measure of Dimensions, Theorem
This information is believed to be accurate. The Polymer Roof Factory or First Line Sales will not be liable for errors and omissions. Specifications, detail, and other information should be verified by the user.