How much concrete do I need for a 10×12 patio?
≈ 1.48 cubic yards
That’s about 67 bags of 80-lb concrete mix (or 89 60-lb bags) for a 10×12 area at 4″ thick.
A 10 ft × 12 ft patio is 120 square feet. Poured at the standard 4-inch slab thickness, that’s 40.0 cubic feet of concrete — about 1.48 cubic yards.
| Area | 120 sq ft |
| Thickness | 4 in |
| Volume | 1.48 cu yd (40.0 cu ft) |
| 80-lb bags | 67 bags |
| 60-lb bags | 89 bags |
Tip: buy ~10% extra for spillage and uneven subgrade. For a thicker pour (driveways are often 5–6″), use the calculator to adjust.
Change the size → open the concrete calculatorGrab the supplies
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