Liberty Mutual Push and Pull Calculator

Population
Vertical height (V) m
Displacement Horizontal (DH) m
Frequency (F) /min

Maximum acceptable:
Push force initial

Push force sustained


Pull force initial

Pull force sustained

In 2021, the well-known Snook tables have been replaced by equations for calculating the maximum acceptable pushing and pulling forces.

I have adjusted the equation so that the maximum acceptable push and pull forces are suitable for 90% of a population.

Source: Liberty Mutual Manual Materials Handling Equations, published by Potvin, et al., 2021.