Concrete guides
Everything we've written about estimating concrete — start with the overview, then dig into the specifics. Ready for a number? The concrete calculator does the arithmetic in seconds.
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How Much Concrete Do I Need?
A clear, accurate method for estimating concrete for any slab, footing, column, or set of stairs — with the exact formula, a worked example, and a reference table of common slab sizes.
Read the guide →Concrete Bags per Cubic Yard (40 vs 60 vs 80 lb, and Ready-Mix)
How many 40, 60, and 80 lb bags of concrete it takes to make a cubic yard, what each bag yields, and the point where ready-mix delivery becomes the cheaper, saner choice.
Read the guide →Concrete Slab Thickness & Estimating Mistakes
The right thickness for patios, driveways, and shed floors — plus the six estimating mistakes that cause short pours, blown budgets, and cracked slabs.
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