Expert Guide

Structural Design Helpers
Slab Load Calculator – Dead & Live Load
Quality Inspector

Estimate gravity loads on concrete slabs.
📐 Formula & Method
Self Weight = Thickness/1000 × 25 kN/m³. Factored Load = 1.5 × (Dead + Live).
Dead Load = (T/1000 × 25) + FF
Factored = 1.5 × (DL + LL)
📋 Worked Example
150mm slab, 1.0 finish, 2.0 live load: • Self Weight = 0.15 × 25 = 3.75 • Dead Load = 3.75 + 1.0 = 4.75 • Factored = 1.5 × (4.75 + 2.0) ≈ 10.1 kN/m²
❓ Frequently Asked Questions
Standard reinforced concrete density is taken as 25 kN/m³ (approx 2500 kg/m³).
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