How much concrete for a 16 ft × 20 ft?
A 16 ft × 20 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
4.23cubic yards (ready-mix)
Exact need: 3.95 cubic yards (ready-mix) · plus 7% waste allowance
Material cost
$528.75–$697.95
Installed (US avg)
$1,753–$2,354
Shopping list
| ITEM | QTY | PRICE RANGE |
|---|---|---|
| cubic yards (ready-mix) | 4.23 | $528.75–$697.95 |
| Estimated material total | $528.75–$697.95 |
Alternative buy formats
- 191 × 80 lb bags — $1,050.5–$1,528
- 254 × 60 lb bags — $1,143–$1,778
16 ft × 20 ft at different depths
| Depth | You need | Buy (with waste) | Material cost |
|---|---|---|---|
| 1″ | 0.99 cubic yards (ready-mix) | 1.06 cubic yards (ready-mix) | $132.5 – $174.9 |
| 2″ | 1.98 cubic yards (ready-mix) | 2.11 cubic yards (ready-mix) | $263.75 – $348.15 |
| 3″ | 2.96 cubic yards (ready-mix) | 3.17 cubic yards (ready-mix) | $396.25 – $523.05 |
| 4″ | 3.95 cubic yards (ready-mix) | 4.23 cubic yards (ready-mix) | $528.75 – $697.95 |
| 6″ | 5.93 cubic yards (ready-mix) | 6.34 cubic yards (ready-mix) | $792.5 – $1,046.1 |