![]() The actual handrail must be at least 1 ¼ inch in diameter. Like a residential handrail, a minimum height of 34 inches and a maximum of 38 inches is required. Per the IBC, deck stairs on commercial properties must have a handrail on both sides of the staircase. Railing Requirements For Commercial Deck StairsĬommercial properties have slightly different requirements. The railing must be continuous along the entire staircase, beginning and ending over the top and bottom riser. While “Type II” style handrails made from traditional wood are allowed in a residential setting, the required upkeep and potential for splintering make this a poor choice. The size of the actual handrail must be between 1 ¼ inch and 2 inches in diameter, providing a firm place for someone to grasp. The height of the handrail must be at least 34 inches and no higher than 38 inches when measured from the sloped plane that adjoins the nose treading. ![]() ![]() Per the IRC, deck stairs on residential properties must have at least one set of railings and a handrail must be installed on stairs that have four or more risers.Ī riser is the vertical portion of the stair. Railing Requirements For Residential Properties With Deck Stairs Typically, the standards set by OSHA are less stringent than those put into place by the IBC. The Occupational Safety and Health Administration (OSHA) also sets safety standards for commercial properties. The International Code Council (ICC) is made up of two divisions, the International Building Code (IBC) which regulates commercial properties and multi-family dwellings, and the International Residential Code (IRC) which regulates residential properties. These codes also include standards for any railing on the stairs. There are several organizations that set deck building codes for both residential and commercial properties. ![]() Residential and Commercial Deck Building Codes One question our team is regularly asked is, “Do my deck stairs need to have a railing installed?”. If you’re building a new deck you might be considering adding stairs and thinking about what type of railing to install, if any.
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