The HMinfo Research Library contains an in-depth collection of materials on home modifications and related subjects.
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This article provides guidelines for owners and designers to evaluate their projects to identify potential safety problems relating to the number, placement, size and shape of handrails and whether to provide more than the minimum requirements of the codes. Both the Seattle Building Code and the Washington Sate Building Code regulate handrails and provide minimum requirements. The requirements for location and frequency of handrails are specified in SBC, Sec. 1003.3.3.6 and 1003.3.4.5. These basic requirements apply to all interior and exterior building stairs and to other stairways on the site that provide public access to, from, or between buildings. Section 1106.8.5 requires handrails on ramps that are sloped steeper than one unit in vertical direction to 20 units in horizontal direction.
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