Expert Guide

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Structural Design Helpers

Staircase Load & Sizing Estimator

Quality Inspector

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Estimate loads on inclined staircase slabs.

📐 Formula & Method

Load accounts for steps and slab weight on the inclined length.

Vertical Load = DL × (Inclined Length / Tread)

📋 Worked Example

150mm rise, 250mm tread, 150mm slab:
• Inclined factor ≈ 1.16
• Total Load ≈ 6.5 kN/m²

❓ Frequently Asked Questions

What is a waist slab?

The structural concrete slab of a staircase that spans between supports and carries the loads to the beams.