Calculate concrete volume for continuous strip footings, pad footings, or pier footings for foundations and decks.
🏗️ Footing Calculator
Cubic Yards
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80lb Bags
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Ready-Mix Cost ($130/yd)
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💡 Pro Tip
Always place rebar in footings — two horizontal #4 rebar bars placed 3 inches from the bottom. Footings without rebar crack and fail, especially in freeze-thaw climates.
Frequently Asked Questions
Q: How deep should footings be?
Footings must extend below the frost line. In cold climates (Zone 6+) this can be 36–48 inches. In mild climates (Zone 9+) 12–18 inches is typically sufficient. Always check local building codes.
Q: How wide should a footing be?
Footing width should be at least twice the wall thickness. For an 8-inch concrete block wall, use a 16-inch wide footing minimum.
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