Concrete Steps Calculator
Estimate solid level-base step volume and whole concrete bags from measured dimensions—no login required.
Part of the Concrete & Masonry calculators — see all tools in this category.
Concrete steps material estimate
A solid, level-base stacked-prism quantity estimate. It does not size, design, or approve stairs.
| Displayed rectangular blocks | 3 equal-going bands |
|---|---|
| Steps solid | 0.35 yd³ |
| Separate landing cuboid | 0 yd³ |
| Net concrete | 0.35 yd³ |
Current partial result
Order 15 whole concrete bags.
- Stacked step solid
- 0.35 yd³
- Separate landing
- 0 yd³
- Net concrete
- 0.35 yd³
- Ordered after allowance
- 0.39 yd³
- Bag yield
- 5.28 US gal/bag
- Whole bags ordered
- 15
- Pricing basis
- No local price entered
- This MVP estimates solid steps on a level base only; void-backed or sloping-base stairs need a separate model.
- This quantity calculator does not determine stair code compliance, reinforcement, or structural suitability.
- A landing is added only when it is a separate non-overlapping cuboid and is not already represented in the step solid.
| Material | Net need | Order quantity |
|---|---|---|
| Concrete mix | 0.35 yd³ (net) | 0.39 yd³ (net) (15 packs) |
No prices entered
Cost breakdown
No prices entered. This is not a completed zero-cost estimate.
Partial estimate: missing required categories are shown below and excluded from totals.
| Line | Purchased quantity / unit / basis | Pricing state | Direct price | Entered line tax |
|---|---|---|---|---|
| Concrete mix bags | 15 count (ordered) | Not priced | — | — |
- Direct priced subtotal
- $0.00
- Selected contingency base
- $0.00
- Contingency rate
- 0%
- Contingency amount
- $0.00
- Before-tax total
- $0.00
- Entered line tax
- $0.00
- Contingency tax (not entered)
- $0.00
- Final total unavailable — enter a price to begin the estimate
- —
Missing price categories: Concrete mix bags.
Cost by category
No entered prices to chart.
| Category | Cost | State |
|---|---|---|
| Concrete mix bags | Not priced | not-priced |
Sources
- S02: QUIKRETE quantity calculators and technical data — Bag-yield and whole-bag ordering context. Yield is product-specific and approximate; use the applicable product datasheet rather than a universal preset.
How it works and assumptions
Before estimating, read Calculating Concrete Shapes and Screed Bag Yields for measurement examples and the distinction between concrete, premixed screed and binder-only products.
Use this page for a solid, level-base flight represented by equal rectangular volume bands. Enter the number of drawn blocks, one going, one rise, and the concrete width. The calculator adds the bands as stacked prisms; it does not determine a stair layout or recommend dimensions.
Optionally add a landing only when it is a separate non-overlapping cuboid and is not already represented in the steps. The landing's location is deliberately not inferred. Enter an editable product-specific bag yield and allowance to turn the net volume into an order count.
This is a material estimate, not structural or code advice. Void-backed, suspended, reinforced, curved, and sloping-base stairs require a separately appropriate design and quantity model. Confirm reinforcement, footing/base, forms, local requirements, and the exact mix yield before purchasing.
Sources and revision
Page revision: 2026-10-12