How much concrete for a 20 ft × 24 ft?
A 20 ft × 24 ft concrete project is pre-filled below. Adjust any value to match your exact job.
Your project
Standard size shown by default. Change any value — the answer recomputes instantly.
You need
6.34cubic yards (ready-mix)
Exact need: 5.93 cubic yards (ready-mix) · plus 7% waste allowance
Material cost
$792.5–$1,046.1
Installed (US avg)
$2,629–$3,530
Shopping list
| ITEM | QTY | PRICE RANGE |
|---|---|---|
| cubic yards (ready-mix) | 6.34 | $792.5–$1,046.1 |
| Estimated material total | $792.5–$1,046.1 |
Alternative buy formats
- 286 × 80 lb bags — $1,573–$2,288
- 381 × 60 lb bags — $1,714.5–$2,667
20 ft × 24 ft at different depths
| Depth | You need | Buy (with waste) | Material cost |
|---|---|---|---|
| 1″ | 1.48 cubic yards (ready-mix) | 1.59 cubic yards (ready-mix) | $198.75 – $262.35 |
| 2″ | 2.96 cubic yards (ready-mix) | 3.17 cubic yards (ready-mix) | $396.25 – $523.05 |
| 3″ | 4.44 cubic yards (ready-mix) | 4.76 cubic yards (ready-mix) | $595 – $785.4 |
| 4″ | 5.93 cubic yards (ready-mix) | 6.34 cubic yards (ready-mix) | $792.5 – $1,046.1 |
| 6″ | 8.89 cubic yards (ready-mix) | 9.51 cubic yards (ready-mix) | $1,188.75 – $1,569.15 |