Section 504.4 covers the current ADA Standards for the tread surfaces on stairways.
Search Results "Stair Tread"
Commonly Searched Documents
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Tread Surface: ADA Standard Section 504.4
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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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1011.5 Stair treads and risers
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Wet Conditions: ADA Standard Section 504.7
Section 504.7 covers the current ADA Standards for wet conditions at stairways.
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11B-504.7 Wet conditions
Stair treads and landings subject to wet conditions shall be designed to prevent the accumulation of water....
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11B-504.4 Tread surface
Stair treads shall comply with Section 11B-302. Changes in level, slopes exceeding 1:48, and detectable warnings shall not be permitted. Exception: Reserved....
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Can stair treads and risers be perforated?
Stair treads must meet requirements for floor or ground surfaces which specify that surface openings not allow passage of a sphere more than ½ inch in diameter (§302.3)....
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11B-504.5 Nosings
The radius of curvature at the leading edge of the tread shall be ½ inch (12.7 mm) 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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Treads & Risers
...do the stairs have closed risers so a crutch or cane cannot slip through the open space between the stair risers and people will not lose their balance as they climb the stairs?...
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R408.2 Treads and Risers
R408.2 Treads and Risers. All steps on a flight of stairs shall have uniform riser heights and uniform tread depths....
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R408.4 Tread Surface
R408.4 Tread Surface. Stairway treads shall comply with R302.7. Changes in level are not permitted....
- American Stair Corp. FasTrack Treads & Landings
- American Safety Tread Co., Inc. Cast Metal Safety Stair Nosing Style 801
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1009.7 Stair treads and risers
1009.7 Stair treads and risers. ......
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Treads and Riser Specifications in the ADA Standards (§504)
Treads and Riser Specifications in the ADA Standards (§504) Nosing Specifications...
- Figure 504.5 Stair Nosings – Drawing from the U.S. Access Board
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1011.5.2 Riser height and tread depth
... Exceptions: 4. See California Fire Code Chapter 11 and California Existing Building Code for the replacement of existing stairways. [DSA-AC] For applications listed in...
- Wooster Products Spectra Safety Treads (WP3C)
- Wooster Products Supergrit Safety Treads (231BF)
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504.4 Tread Surface
504.4 Tread Surface. Stair treads shall comply with 302. Changes in level are not permitted. EXCEPTION: Treads shall be permitted to have a slope not steeper than 1:48....
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504.4 Tread Surface
Stair treads shall comply with 302. Changes in level are not permitted. EXCEPTION: Treads shall be permitted to have a slope not steeper than 1:48. Advisory 504.4 Tread Surface....
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504.4 Tread Surface
Stair treads shall comply with 302. Changes in level are not permitted. EXCEPTION: Treads shall be permitted to have a slope not steeper than 1:48. Advisory 504.4 Tread Surface....
- American Safety Tread Co., Inc. Stair Nosing Style 950