NCIDQ EXAMINATION STUDY SHEET 2026
QUESTIONS WITH DETAILED SOLUTIONS
◉Minimum Accessible Passage. Answer: 60" wide
- if less than 60" wide, passing spaces MUST be provided at intervals
not to exceed 200'. (a 60" x 60" passing space)
◉Minimum Floor Space for one Wheelchair. Answer: 30" x 48"
(in toilet rooms, at least a 5' turning radius is required)
◉Ramp. Answer: any slope greater than 1:20
◉Accessible Doorways. Answer: - have a minimum clear opening of
32" when opened at 90 degrees
- if sufficient clearance not provided, doors must have power
assisted mechanisms or automatic opening
- Thresholds are NOT to exceed 1/4". Thresholds at doorways not to
exceed 1/2". Which is it?
,- opening force cannot be more than 5lb
◉Grab Bars. Answer: - mounted at 33 - 36" AFF
- 42" bar on side of toilet and 36" bar behind toilet
◉Accessible Toilet Stalls. Answer: - Minimum clear opening of 32"
- one ambulatory stall should be built where there are 6 or more
fixtues
- 9" toe clearance
- Centerline of toilet to wall or partition: 16-18"
- Toilet paper dispenser should be mounted at 7-9" to the centerline
of the toilet, and 15-48" AFF
◉Accessible Urinals. Answer: - elongated rim at 17"
- clear floor space of 30" x 48" in front (can overlap accessible route)
, - urinal shields not extending beyond the front ridge may be 29"
apart
◉Accessible Lavatories and Sinks. Answer: - Wall hung lavs are BEST
for ADA
- Mirrors must be hung at 40" AFF (above lavs...other mirrors must
be at 35" maximum AFF)
- maximum height of lav or sink is 34" AFF
◉Accessible Drinking Fountain. Answer: - clear floor space of 30" x
48"
- Spout can be 5" from front maximum
◉Accessible Ramps and Stairs. Answer: - if "no ramps" is possible,
"no ramps" is preferred
- the MAXIMUM rise is 1:12
- minimum clear width is 36", landings must be 60" minimum
QUESTIONS WITH DETAILED SOLUTIONS
◉Minimum Accessible Passage. Answer: 60" wide
- if less than 60" wide, passing spaces MUST be provided at intervals
not to exceed 200'. (a 60" x 60" passing space)
◉Minimum Floor Space for one Wheelchair. Answer: 30" x 48"
(in toilet rooms, at least a 5' turning radius is required)
◉Ramp. Answer: any slope greater than 1:20
◉Accessible Doorways. Answer: - have a minimum clear opening of
32" when opened at 90 degrees
- if sufficient clearance not provided, doors must have power
assisted mechanisms or automatic opening
- Thresholds are NOT to exceed 1/4". Thresholds at doorways not to
exceed 1/2". Which is it?
,- opening force cannot be more than 5lb
◉Grab Bars. Answer: - mounted at 33 - 36" AFF
- 42" bar on side of toilet and 36" bar behind toilet
◉Accessible Toilet Stalls. Answer: - Minimum clear opening of 32"
- one ambulatory stall should be built where there are 6 or more
fixtues
- 9" toe clearance
- Centerline of toilet to wall or partition: 16-18"
- Toilet paper dispenser should be mounted at 7-9" to the centerline
of the toilet, and 15-48" AFF
◉Accessible Urinals. Answer: - elongated rim at 17"
- clear floor space of 30" x 48" in front (can overlap accessible route)
, - urinal shields not extending beyond the front ridge may be 29"
apart
◉Accessible Lavatories and Sinks. Answer: - Wall hung lavs are BEST
for ADA
- Mirrors must be hung at 40" AFF (above lavs...other mirrors must
be at 35" maximum AFF)
- maximum height of lav or sink is 34" AFF
◉Accessible Drinking Fountain. Answer: - clear floor space of 30" x
48"
- Spout can be 5" from front maximum
◉Accessible Ramps and Stairs. Answer: - if "no ramps" is possible,
"no ramps" is preferred
- the MAXIMUM rise is 1:12
- minimum clear width is 36", landings must be 60" minimum
