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Concrete for a 24 × 24 slab
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7.11 yd³
24 × 24 ft (576 ft²) at 4 in thick, before waste
Concrete for a 24 × 24 slab by thickness
| Thickness | yd³ | yd³ +10% | 80 lb bags | 60 lb bags | Ready-mix @ $165/yd³ |
|---|---|---|---|---|---|
| 4 in | 7.11 | 7.82 | 353 | 470 | $1,291 |
| 5 in | 8.89 | 9.78 | 440 | 587 | $1,613 |
| 6 in | 10.67 | 11.73 | 528 | 704 | $1,936 |
| 8 in | 14.22 | 15.64 | 705 | 939 | $2,581 |
Bags include 10% extra. Ready-mix prices vary by region; small loads often carry a short-load fee.
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FAQ
How much concrete do I need for a 24x24 slab?
A 24 × 24 ft slab 4 in thick is 7.11 cubic yards; order about 7.82 yd³ with 10% extra. At 6 in thick it is 10.67 yd³.
How many bags of concrete for a 24x24 slab?
About 353 bags of 80 lb concrete (or 470 × 60 lb) at 4 in thick including 10% extra. For this size, ready-mix delivery is usually more practical than bags.
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