Articles
Worked examples, reference tables, and practical guides for the projects our calculators cover.
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How Much Concrete for a 10×36 Post Hole? (Bags, Yards, and Cost)
A 10-inch by 36-inch post hole takes about 3 80-lb bags or 0.06 cu yd of concrete. Bag counts, costs, and frost-depth guidance for common sizes.
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How Much Concrete for a 10×10 Slab?
How much concrete for a 10×10 slab: about 1.2 cubic yards or 62 bags, plus base prep, control joints, curing, and the bagged-vs-ready-mix decision.