306.3.5 Width

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306.3.5 Width. Knee clearance shall be 30 inches (760 mm) wide minimum.

Figure 306.3(a) Knee Clearance: Elevation. Knee clearance is 27 inches (685 mm) high minimum above the floor or ground for a minimum depth of 8 inches (205 mm), measured from the leading edge of the element. The vertical clearance decreases beyond this depth to a height of 9 inches (230 mm) minimum at depth of 11 inches (280 mm) minimum measured from the leading edge of the element. Figure 306.3(b) Knee Clearance: Plan. Combined knee and toe clearance can extend 25 inches (635 mm) maximum under an element.

Figure 306.3 Knee Clearance

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