Construction Tool
Concrete Calculator
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Using the Concrete Calculator
Concrete is typically sold by the cubic yard. Ordering the correct amount is crucial to avoid expensive shortages or wasted material. This calculator accounts for various shapes including slabs, footings, and cylindrical columns.
How it Works
1
Select the shape of your project (e.g., Rectangular Slab).
2
Enter the length, width, and thickness (depth).
3
Add a "Waste Factor" (typically 5-10%) to account for spills and uneven ground.
4
Review the total required in Cubic Yards and the number of 80lb bags needed.
Technical Formula
Volume = Length x Width x Depth