A5.) This is the most difficult question and the most subject to varying opinions. Sloped concrete and asphalt surfaces are an excellent example of this problem. To our...
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Q5.) What dimensions and conditions can practitioners reasonably consider to be compliant when the conditions, as constructed, do not meet the technical requirements exactly and there are no official, published, industry-developed tolerances?
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11B-405.2 Slope
Table 405.2 Maximum Ramp Slope and Rise for Existing Sites, Buildings, and Facilities Slope1 Maximum Rise Steeper than 1:10...
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607.4.1.1 Back Wall
Two grab bars shall be installed on the back wall, one located in accordance with 609.4 and the other located 8 inches (205 mm) minimum and 10 inches (255 mm) maximum above the rim of the...
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R408.5 Nosings
The radius of curvature at the leading edge of the tread shall be 13 mm (0.5 inch) maximum....
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11B-407.4.8.2.1 Signal type
Exception: For elevators that have a rated speed of 200 feet per minute (1 m/s) or less, a non-verbal audible signal with a frequency of 1500 Hz maximum which sounds as the car passes or...
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11B-813.2.10 Door swing
A door, in any position, shall be permitted to encroach into the turning space by 12 inches (305 mm) maximum....
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11B-407.2.1.1 Height
[2010 ADA Standards] EXCEPTION: Existing call buttons and existing keypads shall be permitted to be located at 54 inches (1370 mm) maximum above the finish floor, measured to the centerline...
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11B-803.6 Mirrors
Mirrors shall be installed with the bottom edge of the reflecting surface 20 inches (508 mm) maximum above the finish floor or ground....
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8.5 Updating Standards in the Future
As noted above, the general population is increasingly overweight and obese; if population heights and weights change significantly, this might alter dimensions required for equipment accessibility...
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4.1.2 Surface Design of Examination Tables and Chairs
., while patients’ weights are compressing the table’s or chair’s foam padding).Z This dimension is typically measured at the back of a patient’s knees and includes compression of the seat...
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11B-705.1.1.1 Dome size
Truncated domes in a detectable warning surface shall have a base diameter of 0.9 inch (22.9 mm) minimum and 0.92 inch (23.4 mm) maximum, a top diameter of 0.45 inch (11.4 mm) minimum and...
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504.5 Nosings
The radius of curvature at the leading edge of the tread shall be ½ inch (13 mm) maximum....
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504.5 Nosings
The radius of curvature at the leading edge of the tread shall be 1/2 inch (13 mm) maximum....
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11B-607.4.1.1 Back wall
Two grab bars shall be installed on the back wall, one located in accordance with Section 11B-609.4 and the other located 8 inches (203 mm) minimum and 10 inches (254 mm) maximum above the...
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11B-607.4.1.1 Back wall
Two grab bars shall be installed on the back wall, one located in accordance with Section 11B-609.4 and the other located 8 inches (203 mm) minimum and 10 inches (254 mm) maximum above the...
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§382.67(a)
stowage of cargo in the cabin compartment) in the cabin of sufficient size to stow at least one typical adult-sized folding, collapsible, or break-down manual passenger wheelchair, the dimensions...
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HOW TO MEASURE TRANSFER HEIGHTS IS IMPORTANT
Because of these complex shapes, it is necessary to create a standard method by which to measure table seat dimensions....
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References:
“Revised Knee Clearance Depth and Footrest Clearance dimensions for sizing of mammography equipment.” Memorandum. April 23, 2013....
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Horizontal Alignment
The critical user for this dimension would be the inline skater....
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11B-610.3 Shower compartment seats
The top of the seat shall be 17 inches (432 mm) minimum and 19 inches (483 mm) maximum above the bathroom finish floor....
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11B-809.8.1 Door Thresholds
Secondary exterior door thresholds, including sliding door tracks, shall be 3/4 inch (19.1 mm) high maximum with a 1:2 maximum slope....
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607.4.1.1 Back Wall
Two grab bars shall be installed on the back wall, one located in accordance with 609.4 and the other located 8 inches (205 mm) minimum and 10 inches (255 mm) maximum above the rim of the...
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504.5 Nosings
The radius of curvature at the leading edge of the tread shall be ½ inch (13 mm) maximum....
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11B-809.10.7.5 Controls
Controls shall be mounted 44 inches (1118 mm) maximum above the finish floor. The force required to activate controls shall be 5 pounds (22.2 mm) maximum....