Metric Republic / Concrete & Reinforcement / Concrete Stairs Calculator

Concrete Stairs Calculator

Preliminary concrete volume for a straight stair flight using waist-slab and step geometry.

How it works

Preliminary concrete volume for a straight stair flight using waist-slab and step geometry.

Core method:
Flight volume ≈ sloping waist slab + triangular step volume. This is a planning approximation for straight flights.

Before you use the result: Check project drawings, supplier data and site conditions before ordering materials.

Practical use

Enter dimensions from the latest drawings or verified site measurements. Adjust allowances and material properties to the supplier or specification you are actually using. Results update instantly as inputs change.

Keep units consistent with the source information.
Use project-specific densities, pack sizes and coverage rates where provided.
Round purchasing quantities to supplier packaging and delivery rules.

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