Section 504 covers stairways, including treads, risers, nosings, and handrails....
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504 Stairways
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Nystrom Building Products MatDesign Roll-Up Mats Premium Carpet Tread Section
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Nystrom Building Products MatDesign Roll-Up Mats Vinyl Abrasive Tread Section
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Nystrom Building Products MatDesign Roll-Up Mats with Premium carpet Tread Model
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Installation of Aggregate Surfaces at Bradford Woods
No. 4 30‒60 35‒55 No. 30 5‒35 10‒30 No. 200 0‒12 2‒9 The crushed rock shall be applied to the trail bed at a minimum depth...
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11B-408.4.1 Car dimensions and doors
Elevator cars shall provide a clear width 42 inches (1067 mm) minimum and a clear depth 54 inches (1372 mm) minimum....
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Forward Approach: ADA Standard Section 305.7.1
Section 305.7.1 covers the current ADA Standards for the clear floor or ground space required for forward approach.
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Parallel Approach: ADA Standard Section 305.7.2
Section 305.7.2 covers the current ADA Standards for the clear floor or ground space required for parallel approach.
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11B-305.7.1 Forward approach
Alcoves shall be 36 inches (914 mm) wide minimum where the depth exceeds 24 inches (610 mm)....
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11B-305.7.2 Parallel approach
Alcoves shall be 60 inches (1524 mm) wide minimum where the depth exceeds 15 inches (381 mm)....
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11B-705.1.2.3 Islands or cut-through medians
Detectable warnings at pedestrian islands or cut-through medians shall be 36 inches (914 mm) minimum in depth extending the full width of the pedestrian path or cut-through less 2 inches...
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1015.3 Height
On stairways and stepped aisles, from the line connecting the leading edges of the tread nosings. On ramps and ramped aisles, from the ramp surface at the guard....
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Nystrom Building Products MatDesign Roll-Up Mats Rugged Scrub® Tread Section
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Protruding Object
A constructed feature such as a sign that extends into the trail tread more than 4 inches (100 mm) between 27 inches (685 mm) and 80 inches (2030 mm) above the trail tread. ...
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RISER
The upright part between two adjacent stairs treads....
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1013.3 Height
On stairs, from the line connecting the leading edges of the tread nosings; and 3. On ramps, from the ramp surface at the guard. Exceptions: 1. ...
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1015.3 Height
On stairways and stepped aisles, from the line connecting the leading edges of the tread nosings. On ramps and ramped aisles, from the ramp surface at the guard....
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4.9.4(2)
(2) If handrails are not continuous, they shall extend at least 12 in (305 mm) beyond the top riser and at least 12 in (305 mm) plus the width of one tread beyond the bottom riser....
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RISER
The upright part between two adjacent stairs treads....
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OPEN RISER
The space between two adjacent stair treads not closed by a riser....
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NOSING
The leading edge of treads of stairs and of landings at the top of stairway flights....
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OPEN RISER
The space between two adjacent stair treads not closed by a riser....
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NOSING
The leading edge of treads of stairs and of landings at the top of stairway flights....
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NOSING
The leading edge of treads of stairs and of landings at the top of stairway flights....
