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Concrete Steps Calculator
Work out the concrete for solid steps, with or without a landing.
Your result
Enter your numbers and press the button. Your result appears here.
Steps are solid concrete under each tread. Add a landing at the top if the steps lead to a door.
How it works
Volume = width × Σ (step number × rise × run) + width × landing depth × total rise.
Example: 3 steps, 7 in rise and 11 in run, 4 ft wide with a 36 in landing, take 33.8 ft³ (1.25 yd³), or 63 bags of 80 lb concrete.
At a glance
Same settings as the calculator above, changing only the steps.
| Steps | Concrete | Bags |
|---|---|---|
| 2 | 20.4 ft³ | 38 |
| 3 | 33.8 ft³ | 63 |
| 4 | 49.4 ft³ | 91 |
| 5 | 67.1 ft³ | 123 |
| 6 | 86.9 ft³ | 160 |
Bag yields
| Bag | Yield | Bags per yd³ |
|---|---|---|
| 40 lb | 0.30 ft³ | 90 |
| 50 lb | 0.375 ft³ | 72 |
| 60 lb | 0.45 ft³ | 60 |
| 80 lb | 0.60 ft³ | 45 |
Quikrete Concrete Mix product data.
All steps calculators
Common questions
What rise and run should steps have?
Many codes limit residential stairs to about a 7¾ in maximum rise and a 10 in minimum tread. Check your local code.
How many bags of concrete for steps?
Divide the volume by the bag yield: 0.60 ft³ for an 80 lb bag. Three 4 ft wide steps with a 3 ft landing take about 11 ft³.
Sources
- Quikrete, Concrete Mix data sheet (bag yields): https://www.quikrete.com/PDFs/DATA_SHEET-Concrete%20Mix%201101.pdf