All steps on a flight of stairs shall have uniform riser heights and uniform tread depths. Risers shall be 4 inches (102 mm) high minimum and 7 inches (178 mm) high maximum....
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11B-504.2 Treads and risers
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Treads and Risers [4.9.2], Nosings [4.9.3]
Uniformity is important not only between steps but along each step; curved stairs, where the width of each tread varies, do not meet this requirement....
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11B-504.2 Treads and risers
All steps on a flight of stairs shall have uniform riser heights and uniform tread depths. Risers shall be 4 inches (102 mm) high minimum and 7 inches (178 mm) high maximum....
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11B-504.2 Treads and risers
All steps on a flight of stairs shall have uniform riser heights and uniform tread depths. Risers shall be 4 inches (102 mm) high minimum and 7 inches (178 mm) high maximum....
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11B-504.2 Treads and risers
All steps on a flight of stairs shall have uniform riser heights and uniform tread depths. Risers shall be 4 inches (102 mm) high minimum and 7 inches (178 mm) high maximum....
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Nosings: ADA Standard Section 504.5
Section 504.5 covers the current ADA Standards for stair nosings.
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Pool Stairs: ADA Standard Section 1009.6
Pool stairs shall comply with 1009.6....
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11B-1009.6 Pool stairs
Pool stairs shall comply with Section 11B-1009.6....
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11B-504.5 Nosings
Nosings that project beyond risers shall have the underside of the leading edge curved or beveled....
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Ramps [4.8]
Curved ramps, while not specifically addressed by ADAAG, are not considered suitable for wheelchair traffic unless the radius of curvature is large enough....
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Pool Stairs: ADA Standard Section 1009.6.1
Pool stairs shall comply with 504....
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11B-1009.6.1 Pool stairs
Pool stairs shall comply with Section 11B-504....
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Figure 504.5 Stair Nosings – Drawing from the U.S. Access Board
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Bottom Extension at Stairs: ADA Standard Section 505.10.3
Section 505.10.3 covers the current ADA Standards for the handrail extensions at the bottom of the stairs.
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Top Extension at Stairs: ADA Standard Section 505.10.2
Section 505.10.2 covers the current ADA Standards for the handrail extensions at the top of the stairs.
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11B-505.10.3 Bottom extension at stairs
At the bottom of a stair flight, handrails shall extend at the slope of the stair flight for a horizontal distance equal to one tread depth beyond the last riser nosing....
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11B-505.10.2 Top extension at stairs
At the top of a stair flight, handrails shall extend horizontally above the landing for 12 inches (305 mm) minimum beginning directly above the first riser nosing....
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11B-505.2.1 Orientation
The orientation of at least one handrail shall be in the direction of the stair run, perpendicular to the direction of the stair nosing, and shall not reduce the minimum required width of...
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Handrails: ADA Standard Section 1009.6.2
Handrail extensions required by 505.10.3 shall not be required on pool stairs....
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11B-1009.6.2 Handrails
Handrail extensions required by Section 11B-505.10.3 shall not be required on pool stairs....
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Handrails: ADA Standard Section 504.6
Section 504.6 covers the current ADA Standards for handrails at stairways.
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11B-504.6 Handrails
Stairs shall have handrails complying with Section 11B-505....
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American Safety Tread Co., Inc. Stair Nosing Style 950
Surface Design: Cross Hatched Non-Slip cast metal stair nosing with #24 virgin grain Silicon Carbide abrasive granules embedded into the walking surface while the matrix is in a molten...
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American Safety Tread Co., Inc. Stair Nosing Style 850
Surface Design: Cross Hatched Non-Slip cast metal stair nosing with #24 virgin grain Silicon Carbide abrasive granules embedded into the walking surface while the matrix is in a molten...
