Maximum Floor Live Load Capacity Calculator
This calculator estimates the maximum live load a floor can support without excessive deflection or failure. It is based on span, stiffness, modulus of elasticity, and a correction factor. Engineers and architects use it to assess floor safety under dynamic loads like people, furniture, or equipment.
Calculate Maximum Live Load on Floor Structure
Live Load Capacity Formula
$$w = 257.876 \cdot s \cdot \sqrt{ \frac{k_h}{E} }$$
Where
- $$w$$ — maximum floor live load
- $$s$$ — span of the floor
- $$k_h$$ — stiffness or floor constant (empirical)
- $$E$$ — modulus of elasticity of the floor material
This empirical formula helps engineers validate whether a specific flooring design can sustain intended live loads. It’s particularly relevant for suspended floors in residential, commercial, and industrial buildings. Ensure units are consistent to get accurate results (e.g., kN/m², psi, etc.).