PX- Chapter 9: Barrier-Free Design

Question 1

what does the ADA federal law state

Answer 1

among other things, all commercial and public accommodations be accessible to people with disiabilites

Question 2

why do you have to comply with ADA if it’s not a building code or enforced

Answer 2

because if you don’t you might be liable for civil law suits

Question 3

what is an accessible route

Answer 3

a continuous, unobstructed path connecting all accessible elements and spaces in a building or facility

Question 4

what is the minimum clear width for an accessible route (this is different than an egress corridor)

Answer 4

36” wide

Question 5

what is the minimum passage point width like a doorway for an accessible route

Answer 5

32”

Question 6

how long can the passage point be max

Answer 6

24” long if the opening is 32”

if the opening is 36” the area can be deeper

Question 7

what is the minimum passage width for two wheelchairs

Answer 7

60”

Question 8

how often must you have a wheelchair passing space if your corridor is less than 60” wide

Answer 8

intervals not exceeding 200 feet

Question 9

what is the clearspace required for a wheel chair

Answer 9

30 x 48

Question 10

what is the max slope for an accessible route that is NOT a ramp

Answer 10

1:20 or 5%. Any bigger than this and it’s a ramp and must conform to the ramp requirements

Question 11

what do you do if you can’t accommodate the required door clearances at swinging doors

Answer 11

use a power-assisted mechanism or auto door opener

Question 12

what is the max change in vertical change of a threshold at doorways

Answer 12

1/4” (doesn’t mean it can’t be taller than this, it just can’t be a 1/2” change between two levels. You can still have a 1/2” high threshold, it just needs to be beveled

Question 13

what is the max overall height of a threshold

Answer 13

1/2”

Question 14

what is the minimum clearances for toilet stalls for width and length

Answer 14

min 60” wide (the wall the toilet is on)

minimum 56” long with wall mounted toilet (side wall)
Minimum 59” long with floor mounted toilet (side wall)

Question 15

what is the minimum toilet stall door clear width

Answer 15

32”

Question 16

how far from the wall must the toilet be when in a toilet stall

how far from the wall is a toilet when it’s in it’s own room

in a residential dwelling unit?

Answer 16

18” in a stall

16-18” in a room

16-18” residential

Question 17

how long is the grab bar behind the toilet and how far from the wall is it when in a toilet stall

Answer 17

36” and 6” from wall in toilet stall

Question 18

how long is the grab bar on the side wall and how far from the back wall is it when in a toilet stall

Answer 18

42” and 12”

Question 19

which direction should the door swing for a toilet stall

Answer 19

out

Question 20

how high are grab bars mounted

Answer 20

btwn 32” and 36” AFF

Question 21

what is an ambulatory toilet stall, when do you need one and what is it’s size

Answer 21

a toilet stall for people with a cane or crutches.

need one in a toilet room with 6 or more toilet stalls or combo of 6 stalls and urinals

35-37” wide at toilet end
60” deep
door opening of 32” swinging out
42” grab bars on either side of stall

Question 22

what is the minimum CLEAR FLOOR SPACE (not size) of a toilet with out a stall (like it’s own room)

Answer 22

60” wide at toilet wall x 56” deep clear floor space

Question 23

in a residential unit, how far away must the vanity be from the CL of the toilet

Answer 23

18” min

Question 24

what is the max height of a urninal AFF for accessibility

Answer 24

17” rim height

Question 25

what is the max height for wall mounted mirrors to be at for accessibility

Answer 25

40” at the bottm edge at max

Question 26

what is the max mounting height of a lav or sink AFF

Answer 26

34”

Question 27

what does a bathtub need in order to be accessible

Answer 27

seat in the tub or at the head of the tub (not the control end)

must have grab bars on all three walls if there is a seat in the tub

must have grab bars on two walls if the seat is at the head of the tub (no grab bar at seat)

controls are off center

Question 28

what is required for an accessible shower stall

Answer 28

small shower stalls (36 x 36) have a fixed seat and grab bars on control wall and back wall

big shower (30 x 60) shower head on back wall, grab bars on all sides, folding seat or a permanent seat

Question 29

what is the max slope for an accessible ramp

Answer 29

1:12 (which is the same as an egress ramp)

however if not possible for an exiting ramp, 1:10 can be used if it’s no higher than 6”

Question 30

what is the maximum height change overall for an accessible ramp. If they are higher than this what should you do?

Answer 30

30” high, if higher, must add a level landing before the next run of ramp

Question 31

what is the min clear width of an accessible ramp

Answer 31

36” wide (same as egress)

Question 32

how long (not wide) must a ramp landing be

Answer 32

60” long

Question 33

when do you need handrails on ramps

Answer 33

if the rise is bigger than 6” or if the ramp is longer than 72”

must be on both sides of ramp between 34-38” above ramp

Question 34

which side of the ramp does the handrail need to extend

Answer 34

both top and bottom at least 12” (same for stairs)

Question 35

What must the clear space between the handrail and wall be?

Answer 35

1 1/2”

Question 36

A handrail must have diameter or width of gripping surface from

Answer 36

1 1/4 - 2’’

Question 37

when would you not require a handrail on a ramp if it’s over 6” high

Answer 37

in assembly areas if the ramp is next to seating

Question 38

what must signage for the visually impaired say

Answer 38

emergency info and general circulation directions

Question 39

what is the size of lettering and font style and finishes for permanent rooms for accessibility. Where are they mounted?

Answer 39

lettering must be 5/8” to 2” high depending on viewing distance

must be uppercase and sans serif with Grade 2 braille. Icons must be at least 6” high

must be a non-glare finish and must contrast with their background

must be mounted on the latch side and 48” aff to lowest

Question 40

how high AFF must an elevator call button be for accessibility

Answer 40

48” to center

Question 41

when would you need to provide accessible seating

Answer 41

in a public or common area space with built in seating or tables. 5% of the tables must be accessible, but not less than 1 obviously

Question 42

what are the 7 principles that the Center for Excellence in Universal Design

Answer 42

equitable use
flexibility in use
simple and intuitive use
perceptible information
tolerance for error- reduces hazards and consequences of accidents
low physical effort
appropriate size and space- clearances required for reaching and using

Question 43

what is way finding

Answer 43

easily identifiable signage

Question 44

what are the requirements for directional and information signs for universal design

Answer 44

letters are between 5/8” and 3” high
upper case or lower case lettering (dont mix?)
have high contrast symbols
non glare finish

Question 45

when do you need to put the wheel chair sign on parking spaces, loading zones, entrances and washrooms

Answer 45

when every one of those items isn’t accessible- like if the two washrooms are there are both accessible, you don’t need a sign.

Question 46

what are the signage requirements for permanent rooms

Answer 46

raised letters between 5/8” and 2” high
uppercase letters in simple font- sans serif or simple serif
must have braille
high contrast symbols
non glare finish
images are min 6” H with related text below
mounting- latch side of door with 18 x 18 clear floor space at the sign center. if there is no room at the latch side, put it on the right side of the door
mounting height- 60” aff to center.