Whether workers climb a ladder or the steps to a large vehicle, failing to heed the three-point rule has resulted in many workplace injuries and deaths.

A worker climbing a small ladder fell to the ground from a height of only four feet (1.2 meters), striking the side of his head. He was found unconscious and later died in hospital. He may have been holding a container as he climbed, so probably didn't maintain three-point contact with the ladder. Three-point contact means two hands, one foot or two feet, one hand.

Here are other essentials for ladder safety:

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