1104.24 Stairway floor number signs. Labels, Joint Departments, Existing stairs in buildings shall be permitted to remain if the rise does not exceed 8.25 inches (210 mm) and the run is not less than 9 inches (229 mm). As for the depth of the landing, it shall have a minimum depth equal to the width of the stairway measured parallel to the direction of travel or 48 inches, whichever is less. Contact Us Building Inspections Email Building Inspections Physical Address View Map 12800 Arbor Lakes Parkway N Maple Grove, MN 55369 Directions Phone: : 763-494-6060 7:30 a.m. to 4 p.m. Directory Means of egress in existing buildings shall comply with the minimum egress requirements specified in Sections 1104.1 through 1104.26.7. 1104.10.1 Stair dimensions for replacement stairs. 1104.7.1.2 Revolving doors. 1104.21 Stairway discharge identification. Dormitory sleeping rooms having an exit doorway direct to the exterior are not required to have a second exit or exit access doorway provided that: b. the travel distance from any point in the room to the exit doorway does not exceed 30 feet; c. the room is not located more than two stories above grade; d. the room is not located on a level below grade; and. Olmsted County Individual Sections Land Management Chapter 1100 Recording of Lot Splits Ordinance Chapter 1200 Subdivision Ordinance and 1250 Platting Ordinance Chapter 1260 - 1264 Subdivision Plat Review Ordinance and Fees MINNESOTA RESIDENTIAL CODE General requirements and building permits Effective March 31, 2020, residential exterior decks must be designed and constructed using the 2020 Minnesota . Window wells with a vertical depth of more than 44 inches shall be equipped with an approved permanently affixed ladder or steps. Emergency escape windows are not required for the following conditions: 1. 1104.26.1 Escape windows not required. Journal, House B1 Residential Building Inspector Practice Quiz, B2 Commercial Building Inspector Practice Quiz, R3 Residential Plans Examiner Practice Quiz, M1 Residential Mechanical Inspector Practice Quiz, E1 Residential Electrical Inspector Practice Quiz, P1 Residential Plumbing Inspector Practice Quiz, Accessibility Inspector / Plans Examiner Practice Quiz, CT CALGreen Inspector / Plans Examiner Practice Quiz. 1104.17.3.1 Minimum width. Escape window openings shall have a minimum net clear opening area of 4.5 square feet (648 square inches). Doors opening into corridors required by Table 1104.17.1 to be fire-resistance rated shall be protected by 20-minute fire assemblies or solid wood doors not less than 1-3/4 inches (45 mm) thick. Exit signs shall be provided where two or more exits are required from a room, area, or story. Section 1011 refers us to Section 1005.1 to size the width of stair. 1104.26.3 Maximum height from floor. The replacement of an existing stairway in a structure shall not be required to comply with the new stairway requirements of Section 1011 where the existing space and construction will not allow a reduction in pitch or slope. The ceiling height in corridors shall be not less than 78 inches (1,981 mm). 3. Published Electronically: IFC section 1104.23 is amended and sections added to read: 1104.23 Minimum aisle width. Building Department Handrails shall not project more than 4.5" on either side of the . Any variation of risers within a flight of stairs should not be more than inch of tolerance. Committee Upcoming Meetings, Broadcast TV & reports, Aisle accessways serving seating areas having 50 or fewer seats, tables, or desks, Aisle accessways serving seating areas more than 50 seats, tables, or desks, Aisle accessways serving employee areas only, Level or ramped aisles having seating on each side and serving 50 or fewer seats, Level or ramped aisles having seating on each side and serving more than 50 seats, Level or ramped aisles having seating on one side and serving 60 or fewer seats, Level or ramped aisles having seating on one side and serving more than 60 seats, Aisle stairs having seating on each side and serving 50 or fewer seats, Aisle stairs having seating on each side and serving more than 50 seats, Aisle stairs having seating on one side and serving 60 or fewer seats, Aisle stairs having seating on one side and serving more than 60 seats, Aisle stair - distance between seating and aisle handrail or guard when the aisle is subdivided. The area of the window well shall allow the emergency escape and rescue opening to be fully opened. Normal and emergency illumination of the means of egress shall comply with Sections 1104.5.1 through 1104.5.3. Openings into corridors shall comply with Sections 1104.17.2.1 through 1104.17.2.3. Escape windows shall be in accordance with this section. Opening height and width dimensions shall not be less than 20 inches. 2. the replacement of the window is not part of a change of occupancy. Revisor of Statutes, Minnesota Office of the Revisor of Statutes, 700 State Office Building, 100 Rev. Rules, Educational Nosing in commercial stairs must have curvature or a bevel of no less than 1/16 inch but not more than 9/16 inch when measured from the foremost projection of the tread. 1104.17.4.1 Wide corridors and dead-end provisions. Daily, Combined Media From rooms of existing buildings having two separate means of escape, provided that the means of escape are independent of each other and they pass through only one adjacent nonlockable room or area. Note that when looking for residential stair standards, one must look at the International Residential Code (IRC). Audio/Video, Legislative Research, The Safety Standard for Belt Manlifts is the ASME A90.1-2015. In Group A occupancies used as places of religious worship, existing corridor walls, ceilings, and opening protection not in compliance with Section 1104.17.1 may be continued when such buildings are protected with an approved automatic fire alarm system. 3. 1104.3.2 Locations. Audio/Video, Legislative Research, For example if we take the same example above, the calculated width would be 40 inches (200 x 0.2), but of course as stated above a minimum width of 44 inches must be used. Committees, Joint Committees 1104.7.1 Size of doors. Review, Minnesota Issues The face of an exit sign illuminated from an external source shall have an intensity of not less than 5 foot-candles (54 lux). Guides, Books | Chinese/, Payment FAQs, program report, tax return information, Overview of the Minnesota State Building Code, License forms, permits, plan review and local governments, Residential contractors, remodelers, roofers, 2020 Minnesota Residential Code*(English version), 2020 Minnesota Residential Code*(Spanish version), 2020 Minnesota Mechanical and Fuel Gas Code, 2020 Minnesota Conservation Code for Existing Buildings, 2020 Minnesota Building Code Administration, 2020 Minnesota Provisions to the State Building Code, 2020 Minnesota Elevator and Related Devices Code, Minnesota Industrialized/Modular Building Code, Minnesota Storm Shelters (Manufactured Home Parks), Understanding Amendments to the 2020 Minnesota State Building Code. | Soomaali The 2022 SBC adopts the following model codes: 2021 International Building Code This handout is intended only as a guide and is based in part on the 2020Minnesota State Building Code , Maple Grove City ordinances, and good building practice. The emergency power system shall provide power for not less than 30 minutes and consist of storage batteries, unit equipment, or an on-site generator. Give us a call (651-636-4966) or click here for a FREE estimate. Archive, Session Laws The Minnesota State Building Code is hereby incorporated in this section as if fully set out herein. 1104.25.4. This allows everyone from homeowners to first responders to safely traverse a staircase without snagging clothing or equipment on a handrail and falling down a staircase. The code specifies that risers should not be more than 7 inches in height and not less than 4 inches when measured vertically between the nosing of the adjacent tread. Library, House 7. Now when a door opens onto a landing it shall not reduce the landing by less than 1/2 the required width and with the door fully open, it shall not project more than 7 inches into the landing. Constitutional Amendments, Multimedia Audio, 1104.3.3 Main exits. Guards complying with this section shall be provided at the open sides of means of egress that are more than 30 inches (762 mm) above the floor or grade below. The minimum width of the stairway shall be 44", unless the stairway serves an occupancy of less than 50, in which case the minimum width is 36". But what is Section 1005.1? Fire escape stairs shall be permitted in existing buildings but shall not constitute more than 50 percent of the required exit capacity. 1104.25.3 Four egress doors or exits required. Present, Legislative This clearance must be maintained above the stairway to the point where the line intersects the landing below to one tread depth beyond the bottom riser. These shall be no higher than the floor or windowsill level and no lower than 8 inches (203 mm) below the floor level or 18 inches (457 mm) below the windowsill. 1104.17.2.1 Doors. Journal, Senate Access to a fire escape stair shall be directly to a balcony, landing, or platform. This shall include exterior stairs from a dwelling or garage to grade and those stairs serving decks, porches, balconies, sun rooms, and similar structures. CHAPTER 2 DEFINITIONS. Transoms, louvers, and openings other than doors from corridors to rooms shall be automatic-closing by smoke detection or shall be covered with a minimum of 3/4-inch (19 mm) gypsum wallboard or equivalent material on the room side. Stairs that only provide access to plumbing, mechanical, or electrical equipment. Schedule, Legislative Exception 1 in Section 1005.3.1 allows for a reduction in size when a building is equipped with an automatic fire sprinkler system and an emergency voice/alarm communication system, except for when serving an occupancy group H and I-2. | Karen/ Code requires handrails be mounted between 34 and 38 inches. This article series lists all major building code specifications for stairs, railings, landings, and guardrails - information useful for constructing or inspecting indoor or outdoor stairs, railings, landings, & treads, and for evaluating stairways and railings for safety and proper construction. Here are three reference numbers for the codes pertaining to rise, run, and nosing in a straight run of stairs: R 311.7.5.1. Offices, and Commissions, Legislative Counsel, Research & Fiscal Analysis, Senate 1104.16.6 Termination. 1104.5.1.3 Dwelling units and sleeping rooms. Business, Senate Internally illuminated signs shall provide equivalent luminance and be listed for the purpose. Comparisons, Bill In dwellings and structures constructed prior to July 1, 1972, provided they are not licensed by Minnesota or used for transient lodging. of the Senate, Senate Whats the difference between the IBC and IRC? 1104.17.2 Corridor openings. 1104.7.1.3 Dwelling units. The 2020 Statement of Need and Reasona bleness (SONAR) is also available online. Rule Status, State For example if the width of a stairway is 44 inches, the landing shall be a minimum 44 inches in depth but if a stairway is 60 inches in width, the landing shall only need to be a minimum 48 inches in depth. Unlike residential stairs that only require a handrail on one side, commercial stairs require handrails on both sides. Three means of egress doors or exits are required from rooms, areas, stories, or buildings when the number of occupants exceeds 500 persons. IFC section 1104 is amended by adding section 1104.26 and subsections to read: 1104.26 Escape windows. History Guide, Legislators Past & 2. and Legislative Business, House Where Table 1104.17.1 allows a sprinkler system in lieu of fire-resistance-rated construction, the building shall be protected throughout with an automatic sprinkler system in accordance with Section 903.3.1.1 or 903.3.1.2. Fire escape stairs and balconies shall be provided with a top and intermediate handrail on each side. Fire escape stairs and balconies shall support the dead load plus a live load of not less than 100 pounds per square foot (4.78 kN/m2). The installation of the emergency power system shall be in accordance with Section 1203. It is designed to work on porches, basement stairs, patios, and laundry areas, as well as others. Tracking Sheets, Hot 1104.5.1 Illumination required. Supplemental State Fire Code information. I stairway can be used as a component of a means of egress. In occupancies in Group I-3, F, H, or S, the clear distance between intermediate rails measured at right angles to the rails shall not exceed 21 inches (533 mm). Analysis, House Ladders or steps required by this section are exempt from the stairway requirements of Sections 1011 and 1104.10 through 1104.13. Group A having 50 or more occupants. There are a few exceptions worth mentioning. When we talk about the handrails, ensure that it is not more than 4 inches on both sides. Fire escape stairs shall comply with Sections 1104.16.1 through 1104.16.7. Factor per Section 1005.3.1 is 0.3 inch per occupant. In the event of power supply failure, illumination shall be automatically provided from an emergency system for the following occupancies where such occupancies require two or more means of egress: 1. Maximum unreinforced height 600mm + Cap (3 courses). Dr. Martin Luther King Jr. Commercial stairways must have a floor or landing located at both the top and bottom of the stairs. Session Daily, Senate Media Where the existing frame will not accommodate the 1-3/4 inches (45 mm) thick door, a 1-3/8 inches (35 mm) thick solid bonded wood core door or equivalent insulated steel door shall be permitted. Exterior deck boards, stair treads, guards or handrails made of plastic composite materials . The code does also note that if a stairway is to be considered accessible, such as an accessible means of egress, it must either incorporate an area of refuge within an enlarged floor-level landing or must be accessed from an area of refuge. STAIRWAY Building code information for one- or two- family dwellings and townhomes. 612-673-3000. View information about the 2020 Minnesota State Building Codes. 1104.26.2 Minimum size and dimensions. Where each sleeping room has direct access to the outside of the building at ground level, emergency illumination is not required. Representatives, House Guards on the open side of stairs shall not have openings that allow passage of a sphere 4 3 / 8 inches (111 mm) in diameter.