Grab Bars in Industry and Construction
Grab bars in industry and construction are found on equipment or above fixed ladders where footholds exist but other handholds are lacking. They may be positioned horizontally, vertically, or at an angle.
When using grab bars as safety devices in order to prevent falls, your best choice would be a horizontal bar. Scientific research has found that gripping strength is far greater using a horizontal bar than a vertical bar in a fall situation. This makes horizontal grab bars the safest choice.
Occupational Safety and Health Administration (OSHA) guidelines describe the requirements for grab bar clearance, diameter and spacing on fixed ladders. These regulations state that the clearance in the back of grab bars must be at least 4 inches, the diameter similar to the ladder rungs and, when horizontal, grab bars must be spaced by a continuation of the rung spacing. In 2008-2009 alone, the USDOL Bureau of Labor Statistics reported 241 casualties from ladder falls.
Siderail extensions horizontal grab bars may be bolted or welded welded to fixed ladders. Grab bars may be mounted to the curb for access to rooftops and rooftop hatches.
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