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Dimensional requirements for staircase fittings Jan 19, 2017

First, the staircase well: staircase well width is greater than 0.20m, the handrail of the vertical bar clearance should not be greater than 0.11m, to prevent children from falling.

Second, staircase fittings in the staircase: Stair width in the residential design has clearly defined in other buildings, must meet the requirements of fire evacuation. Public buildings in the performance of the stairs to take the width of the size is usually too large, but pay attention to the handrail setting and the width of the relationship between the bench. That is: the stairs should be at least one side of the handrail, ladder net width of three shares of the flow, should be set on both sides of the handrail, up to four shares of the flow, should be added to the middle arm.

Third, the staircase platform: staircase platform width should not be less than the width of the bench, and shall not be less than 1.10m.

Fourth, the handrails: the height of the staircase handrails (since the amount of stepping from the front line) should not be less than 0.90m; outdoor staircase handrail height should not be less than 1.05m.