Ladder rungs shall have a minimum inside width of at least 12 inches and shall project at least 3 inches from the wall behind the ladder.
Ladder rungs shall have a maximum rise of 12 inches between rungs and shall extend to within 12 inches of exterior grade.
The areaway shall be constructed such that water entering the areaway does not enter the dwelling.
An egress window under a deck or porch shall discharge through a clear path of at least 36 inches in height and 36 inches in width, and no more than 15 feet in length, to a yard or open space.
SPS 321.03 Note
Note: Under this paragraph, there is no maximum height above grade for an egress window. Similarly, egress windows are not prohibited from discharging to a roof, regardless of the slope of the roof.
Doors used for exiting from a dwelling shall meet the following dimensions:
At least one exit door shall be a swing-type door at least 80 inches high by 36 inches wide.
Except as allowed under subds. 3.
, other required exit doors shall be at least 76 inches high by 32 inches wide.
Where double doors are used as a required exit, each door leaf shall provide a clear opening at least 30 inches wide and be at least 76 inches high.
Where sliding doors are used as a required exit, the clear opening shall be at least 29 inches wide and be at least 76 inches high.
All exit doors shall be openable from the interior without the use of a key.
Balconies shall be made of concrete, metal or wood which is treated, protected or naturally decay-resistive in accordance with s. SPS 321.10
Balconies which are required for exit purposes shall also comply with all of the following requirements:
The balcony guard shall terminate no more than 46 inches above the floor level of the balcony.
The floor level of the balcony shall be no more than 15 feet above the grade below.
The floor of the balcony shall have minimum dimensions of 3 feet by 3 feet. The guard and its supports may infringe on the dimensions of the required area no more than 4.5 inches.
(9) Split level dwellings.
In determining the exit requirement in a split level dwelling, all levels that are to be considered a single story shall be within 5 feet of each other.
(10) Two-family dwellings.
In a 2-family dwelling, each dwelling unit shall be provided with exits in compliance with this section.
(11) Exits to courtyards.
No exit may discharge to a courtyard having a perimeter that is entirely enclosed by exterior building walls or other obstructions that prevent pedestrian passage.
SPS 321.03 History
Cr. Register, November, 1979, No. 287
, eff. 6-1-80; r. and recr. Register, February, 1985, No. 350
, eff. 3-1-85; emerg. am. (1) (b), (2) and (5) (b) 2., eff. 5-7-85; r. (1) (b), renum. (1) (a) to be (1), am. (2), (7) and (8), r. and recr. (5) to (6), cr. (6m) and (10) to (12), Register, January, 1989, No. 397
, eff. 2-1-89; am. (3) and (7), r. and recr. (10) and (11), Register, March, 1992, No. 435
, eff. 4-1-92; am. (8), r. and recr. (10) (a), Register, November, 1995, No. 479
, eff. 12-1-95; am. (6m) (b) 1. and 2., r. (6m) (b) 3., Register, January, 1999, No. 517
, eff. 2-1-99; r. and recr. (1), (5), (7) and (8), am. (2) (b), r. (6), renum. (6m) to be (6) and r. and recr. (6) (d) and (e) as renum., Register, March, 2001, No. 543
, eff. 4-1-01; reprinted to correct printing error in (6) (e) 2., Register September 2001 No. 549
; CR 02-077
: am. (1) (a), (5) (a) (intro.) and (10) (b), r. and recr. (1) (e), cr. (1) (f) to (h), Register May 2003 No. 569
, eff. 8-1-03; CR 03-097
: am. (1) (h) 1., Register November 2004 No. 587
, eff. 1-1-05; CR 08-043
: am. (title) and (1) (b), r. and recr. (3) and (7), renum. (6) (e) 5. and (10) to (12) to be (6) (e) 5. a. and (8) to (10), cr. (6) (e) 5. b. to d., r. (8) and (9) Register March 2009 No. 639
, eff. 4-1-09; correction in (2) (a) made under s. 13.92 (4) (b) 7.
, Stats., Register March 2009 No. 639
; CR 09-104
: am. (1) (c) Register December 2010 No. 660
, eff. 1-1-11; correction in (6) (d) 5., (e) 4., (8) (a), (b) made under s. 13.92 (4) (b) 7.
, Stats., Register December 2011 No. 672
; CR 15-041: am. (1) (c), (d), cr. (1) (h) 3., am. (2) (a) to (c), (6) (d) 5., (e) 4., 5. a., cr. (6) (f), am. (7) (a) 4., (8) (b), (c) 1., 3., cr. (11) Register December 2015 No. 720, eff. 1-1-16.
Doors and openings.
All doors and openings to the following areas shall be at least 80 inches high and provide either a net clear opening width of 30 inches or be a 32-inch door:
At least one full bathroom, including doors or openings to a sink, toilet and tub or shower. If this bathroom is accessible only through a bedroom, the bedroom door shall meet the minimum width requirements of this section.
If one or more full bathrooms are provided on the first floor, the bathroom meeting the requirements under this section shall be on the first floor.
SPS 321.035 Note
Note: This section does not require a full bathroom on the first floor.
Except as allowed under par. (b)
, the clear width of hallways shall be at least 36 inches.
The following are allowed to infringe on the required clear width of a hallway:
Handrails may infringe into the minimum width of a hallway up to 4½
inches on each side.
Heating registers may infringe into the minimum width of a hallway up to 4½
inches and no part of the register may be more than 38 inches above the floor.
Ducts, pipes, light fixtures, structural features, and corner treatments that are within 84 inches of the floor may infringe into the minimum width of a hallway by a maximum of 4½
inches on each side.
Unlimited infringements are allowed in a hallway more than 84 inches above the floor.
There shall be at least 30 inches of clearance between a wall, a permanently-installed kitchen island, permanently-installed kitchen cabinets and the following kitchen appliances, if provided:
Measurements shall be taken from the face of the wall, island, cabinet or appliance, ignoring knobs and handles.
SPS 321.035 Note
Note: See ICC/ANSI A117.1 chapter 10 for more guidelines relating to doors and accessible routes. Under that standard, doors must be at least 80-inches in height and provide a minimum net clear opening of 31¾-inches in width in order to provide accessibility for people with disabilities.
SPS 321.035 History
History: CR 08-043
: cr. Register March 2009 No. 639
, eff. 4-1-09.
Stairways and elevated areas. SPS 321.04(1)(a)(a)
Except as provided under par. (b)
, the following stairways shall conform to the requirements of this section.
Every interior and exterior stairway attached to, or supported by any part of the structure covered under this code.
Tub access stairs, unless they are an integral part of an approved plumbing product.
The following stairways are not required to comply with the requirements of this section:
Non-required stairways connecting the basement directly to the exterior of the structure without communicating with any other part of the structure.
Except for spiral staircases under subd. 2.
, stairways shall measure at least 36 inches in width. Handrails and associated trim may project a maximum of 4.5 inches into the required width at each side of the stairway. The minimum clear width at and below the handrail, including at treads and landings, may not be less than 31.5 inches where a handrail is installed on one side, and 27 inches where handrails are provided on both sides.
Spiral staircases shall be at least 26 inches wide measured from the outer edge of the supporting column to the inner edge of the handrail.
Except for spiral staircases under subd. 2.
, risers may not exceed 8 inches in height measured vertically from tread to tread.
At the top and bottom of a flight, measurement shall be taken from the top of the nosing to the finished floor surface unless the finished surface is carpeting, in which case measurement shall be made to the hard surface below the carpeting.
Risers in spiral staircases may not exceed 9.5 inches in height measured vertically from tread to tread.
SPS 321.04(2)(c)1.1. `Rectangular treads.'
Rectangular treads shall have minimum tread depth of 9 inches measured horizontally from nosing to nosing.
2. `Spiral staircase treads.'
Spiral staircase treads shall have a minimum tread depth of 7 inches from nosing to nosing measured at a point 12 inches from the outer edge of the center column.
3. `Winder treads in series.'
Two or more winder treads may be placed immediately adjacent to each other anywhere in a stairway provided both of the following conditions are met:
The winder treads shall have a minimum tread depth of 7 inches measured at a point 12 inches from the narrow end of the tread.
The depth of the immediately adjoining winder treads shall be equal at a point 12 inches from the narrow end of the tread or inside face of spindles or balusters.
An individual winder tread may be placed between rectangular treads or at the end of a flight of rectangular treads provided the tread depth is at least 9 inches, when measured at a distance of 12 inches from the narrow end of the tread or from the inside face of the wall.
Stairways shall be provided with a minimum headroom clearance of 76 inches measured vertically from a line parallel to the nosing of the treads to the ceiling, soffit or any overhead obstruction directly above that line.
The headroom clearance shall be maintained over an intermediate landing.
The headroom clearance shall be maintained over a landing that is at the top or bottom of a stairway for a minimum distance of 36 inches in the direction of travel of the stairway.
Within a stairway flight, the greatest tread depth may not exceed the smallest tread depth by more than 3/8
inch and the greatest riser height may not exceed the smallest riser height by more than 3/8
The allowed variation in uniformity under subd. 1.
may not be used to exceed the maximum riser height under par. (b)
or to decrease the minimum tread depth under par. (c)
(f) Open risers.
Stairways with open risers shall be constructed to prevent the through-passage of a sphere with a diameter of 4 inches or larger between any 2 adjacent treads.
The walking surface of stair treads and landings shall be a planar surface that is free of lips or protrusions that could present a tripping hazard.
A flight of stairs with more than 3 risers shall be provided with at least one handrail for the full length of the flight.
Guards shall be provided on all open sides of stairs consisting of more than 3 risers and on all open sides of areas that are elevated more than 24 inches above the floor or exterior grade.
SPS 321.04 Note
Note: A handrail provided at 30 to 38 inches above the tread nosing meets the height requirement for a guard on a stairway.