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ICC/ANSI A117.1-2003
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Fig. 404.2.3.1
Maneuvering Clearance at Manual Swinging Doors
18
ICC/ANSI A117.1-2003
Chapter 4. Accessible Routes
Table 405.2—Allowable Ramp Dimensions for Construction in
Existing Sites, Buildings, and Facilities
Slope' Maximum Rise
Steeper than 1:10 but not steeper than 1:8 3 inches (75 mm)
Steeper than 1:12 but not steeper than 1:10 6 inches (150 mm)
'A slope steeper than 1:8 shall not be permitted.
405.6 Rise. The rise for any ramp run shall be 30
inches (760 mm) maximum.
405.7 Landings. Ramps shall have landings at bot-
tom and top of each ramp run. Landings shall com-
ply with Section 405.7.
405.7.1 Slope. Landings shall have a slope not
steeper than 1:48 and shall comply with Sec-
tion 302.
405.7.2 Width. Clear width of landings shall be
at least as wide as the widest ramp run leading
to the landing.
405.7.3 Length. Landings shall have a clear
length of 60 inches (1525 mm) minimum.
405.7.4 Change in Direction. Ramps that
change direction at ramp landings shall be
sized to provide a turning space complying with
Section 304.3.
405.7.5 Doorways. Where doorways are adja-
cent to a ramp landing, maneuvering clear-
ances required by Sections 404.2.3 and
404.3.2 shall be permitted to overlap the land-
ing area. Where doors that are subject to lock-
ing are adjacent to a ramp landing, landings
shall be sized to provide a turning space com-
plying with Section 304.3.
405.8 Handrails. Ramp runs with a rise greater
than 6 inches (150 mm) shall have handrails com-
plying with Section 505.
405.9 Edge Protection. Edge protection comply-
ing with Section 405.9.1 or 405.9.2 shall be pro-
vided on each side of ramp runs and at each side of
ramp landings.
EXCEPTIONS:
1. Ramps not required to have handrails
where curb ramp flares complying with
Section 406.3 are provided.
2. Sides of ramp landings serving an adjoin-
ing ramp run or stairway.
3. Sides of ramp landings having a vertical
drop—off of ,� inch (13 mm) maximum within
10 inches (255 mm) horizontally of the mini-
mum landing area.
405.9.1 Extended Floor Surface. The floor
surface of the ramp run or ramp landing shall
extend 12 inches (305 mm) minimum beyond
the inside face of a railing complying with Sec-
tion 505.
60 min
1525
60 min
1525
landing
F
ramp run
landing
ast as wide as ramp run
(a)
Fig. 405.7
Ramp Landings
60 min
1525
ramp run LO
landing F
or
ramp
run
E
23
ICC/ANSI A117.1-2003
to/ awns
Fig. 505.4
Handrail Height
(b) Ramps
505.7 Cross Section. Handrails shall have a cross
section complying with Section 505.7.1 or 505.7.2.
Chapter 5. General Site and Building Elements
11/2 min
38
Fig. 505.5
Handrail Clearance
505.9 Fittings. Handrails shall not rotate within their
fittings.
505.7.1 Circular Cross Section. Handrails 505.10 Handrail Extensions. Handrails shall
with a circular cross section shall have an out- extend beyond and in the same direction of stair
side diameter of 1'/, inches (32 mm) minimum flights and ramp runs in accordance with Section
and 2 inches (51 mm) maximum. 505.10.
505.7.2 Noncircular Cross Sections. Hand-
rails with a noncircular cross section shall have
a perimeter dimension of 4 inches (100 mm)
minimum and 61/, inches (160 mm) maximum,
and a cross-section dimension of 21/, inches
(57 mm) maximum.
505.8 Surfaces. Handrails, and any wall or other
surfaces adjacent to them, shall be free of any sharp
or abrasive elements. Edges shall be rounded.
11/4-2
32-51
(a)
Circular
EXCEPTIONS:
1. Continuous handrails at the inside turn of
stairs and ramps.
2. Extensions are not required for handrails in
aisles serving seating where the handrails
are discontinuous to provide access to
seating and to permit crossovers within the
aisle.
4 - 61/4 perimeter
(b)
Fig. 505.7
Handrail Cross Section
100-160
21/4 max
57
(c)
Noncircular
43
Chapter 5. General Site and Building Elements
3. In alterations, full extensions of handrails
shall not be required where such exten-
sions would be hazardous due to plan con-
figuration.
505.10.1 Top and Bottom Extension at Ramps.
Ramp handrails shall extend horizontally above the
landing 12 inches (305 mm) minimum beyond the
top and bottom of ramp runs. Extensions shall
return to a wall, guard, or floor, or shall be continu-
ous to the handrail of an adjacent ramp run.
505.10.2 Top Extension at Stairs. At the top of a
stairflight, handrails shall extend horizontally above
the landing for 12 inches (305 mm) minimum begin-
ning directly above the landing nosing. Extensions
12 min
305
ICC/ANSI A117.1-2003
shall return to a wall, guard, or the landing surface,
or shall be continuous to the handrail of an adjacent
stair flight.
505.10.3 Bottom Extension at Stairs. At the bot-
tom of a stair flight, handrails shall extend at the
slope of the stair flight for a horizontal distance
equal to one tread depth beyond the bottom tread
nosing. Extensions shall return to a wall, guard, or
the landing surface, or shall be continuous to the
handrail of an adjacent stair flight.
506 Windows
Accessible windows shall have operable parts com-
plying with Section 309.
12 min
305
Fig. 505.10.1
Top and Bottom Handrail Extensions at Ramps
12 min
Fig. 505.10.2
Top Handrail Extensions at Stairs
44
Fig. 505.10.3
Bottom Handrail Extensions at Stairs
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Fig. 404.2.3.1
Maneuvering Clearance at Manual Swinging Doors
18
ICC/ANSI A117.1-2003
Chapter 4. Accessible Routes
Table 405.2—Allowable Ramp Dimensions for Construction in
Existing Sites, Buildings, and Facilities
Slope' Maximum Rise
Steeper than 1:10 but not steeper than 1:8 3 inches (75 mm)
Steeper than 1:12 but not steeper than 1:10 6 inches (150 mm)
'A slope steeper than 1:8 shall not be permitted.
405.6 Rise. The rise for any ramp run shall be 30
inches (760 mm) maximum.
405.7 Landings. Ramps shall have landings at bot-
tom and top of each ramp run. Landings shall com-
ply with Section 405.7.
405.7.1 Slope. Landings shall have a slope not
steeper than 1:48 and shall comply with Sec-
tion 302.
405.7.2 Width. Clear width of landings shall be
at least as wide as the widest ramp run leading
to the landing.
405.7.3 Length. Landings shall have a clear
length of 60 inches (1525 mm) minimum.
405.7.4 Change in Direction. Ramps that
change direction at ramp landings shall be
sized to provide a turning space complying with
Section 304.3.
405.7.5 Doorways. Where doorways are adja-
cent to a ramp landing, maneuvering clear-
ances required by Sections 404.2.3 and
404.3.2 shall be permitted to overlap the land-
ing area. Where doors that are subject to lock-
ing are adjacent to a ramp landing, landings
shall be sized to provide a turning space com-
plying with Section 304.3.
405.8 Handrails. Ramp runs with a rise greater
than 6 inches (150 mm) shall have handrails com-
plying with Section 505.
405.9 Edge Protection. Edge protection comply-
ing with Section 405.9.1 or 405.9.2 shall be pro-
vided on each side of ramp runs and at each side of
ramp landings.
EXCEPTIONS:
1. Ramps not required to have handrails
where curb ramp flares complying with
Section 406.3 are provided.
2. Sides of ramp landings serving an adjoin-
ing ramp run or stairway.
3. Sides of ramp landings having a vertical
drop—off of ,� inch (13 mm) maximum within
10 inches (255 mm) horizontally of the mini-
mum landing area.
405.9.1 Extended Floor Surface. The floor
surface of the ramp run or ramp landing shall
extend 12 inches (305 mm) minimum beyond
the inside face of a railing complying with Sec-
tion 505.
60 min 60 min
1525 1525
F _______T
landing F ramp run landing
ast as wide as ramp run
(a)
Fig. 405.7
Ramp Landings
ramp
run
(b)
23
60 min
1525
ramp run
landing
E
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ramp
run
(b)
23
ICC/ANSI A117.1-2003
�dj owlrs
Fig. 505.4
Handrail Height
(b) Ramps
505.7 Cross Section. Handrails shall have a cross
section complying with Section 505.7.1 or 505.7.2.
Chapter 5. General Site and Building Elements
11/2 min
38
Fig. 505.5
Handrail Clearance
505.9 Fittings. Handrails shall not rotate within their
fittings.
505.7.1 Circular Cross Section. Handrails 505.10 Handrail Extensions. Handrails shall
with a circular cross section shall have an out- extend beyond and in the same direction of stair
side diameter of 11/4 inches (32 mm) minimum flights and ramp runs in accordance with Section
and 2 inches (51 mm) maximum. 505.10.
505.7.2 Noncircular Cross Sections. Hand-
rails with a noncircular cross section shall have
a perimeter dimension of 4 inches (100 mm)
minimum and 61/4 inches (160 mm) maximum,
and a cross-section dimension of 21/4 inches
(57 mm) maximum.
505.8 Surfaces. Handrails, and any wall or other
surfaces adjacent to them, shall be free of any sharp
or abrasive elements. Edges shall be rounded.
11/4-2
32-51
(a)
Circular
EXCEPTIONS:
1. Continuous handrails at the inside turn of
stairs and ramps.
2. Extensions are not required for handrails in
aisles serving seating where the handrails
are discontinuous to provide access to
seating and to permit crossovers within the
aisle.
4-
100-160
-
(b)
Fig. 505.7
Handrail Cross Section
100-160
21/4 max
57
(c)
Noncircular
43
Chapter 5. General Site and Building Elements
3. In alterations, full extensions of handrails
shall not be required where such exten-
sions would be hazardous due to plan con-
figuration.
505.10.1 Top and Bottom Extension at Ramps.
Ramp handrails shall extend horizontally above the
landing 12 inches (305 mm) minimum beyond the
top and bottom of ramp runs. Extensions shall
return to a wall, guard, or floor, or shall be continu-
ous to the handrail of an adjacent ramp run.
505.10.2 Top Extension at Stairs. At the top of a
stairflight, handrails shall extend horizontally above
the landing for 12 inches (305 mm) minimum begin-
ning directly above the landing nosing. Extensions
12 min
305
12 min
ICC/ANSI All 17.1-2003
shall return to a wall, guard, or the landing surface,
or shall be continuous to the handrail of an adjacent
stair flight.
505.10.3 Bottom Extension at Stairs. At the bot-
tom of a stair flight, handrails shall extend at the
slope of the stair flight for a horizontal distance
equal to one tread depth beyond the bottom tread
nosing. Extensions shall return to a wall, guard, or
the landing surface, or shall be continuous to the
handrail of an adjacent stair flight.
506 Windows
Accessible windows shall have operable parts com-
plying with Section 309.
12 min
305
Fig. 505.10.1
Top and Bottom Handrail Extensions at Ramps
Fig. 505.10.2
Top Handrail Extensions at Stairs
44
Fig. 505.10.3
Bottom Handrail Extensions at Stairs