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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. R 311.7.5.2. R 311.7.5.3. You can view the code in its entirety here. Harrison is a writer, editor and former construction worker covering the home building industry, the housing market and general DIY trends. Residential.

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Building Codes and Standards. BC Codes 2024 are now in effect, except for adaptable dwellings and earthquake changes which take effect March 10, 2025. New technical bulletins for the 2024 BC Building Code are now available. Amendments to the 2024 BC Building Code and 2024 BC Fire Code to enable taller encapsulated mass timber buildings, new.

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The British Columbia Building Code (BCBC) is based substantially on the model NBC.. about 200 mm or 10") are hazardous and lead to increased trips, falls, and injuries. Changes in stair rise and/or run are also proven to be hazardous, unless a landing is provided in between the changes in. mixed flights, and changes in stair run within.

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9.8.1.1. General. 1) This Section applies to the design and construction of interior and exterior stairs, steps, ramps, handrails and guards. 9.8.1.2. Exit Stairs, Ramps and Landings. 1) Where a stair, ramp or landing forms part of an exit, the appropriate requirements in Sections 9.9. and 9.10. shall also apply. 9.8.1.3.

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A minimum of 31.5 "width below handrail height where a handrail is on one side. A minimum of 27 "width below handrail where handrails are on both sides. A maximum rise of 7-3 / 4 "- maximum difference among risers 3/8″. A minimum tread width of 10 "- maximum difference among treads 3/8".

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The BC Building Code 2018 applies to building permits issued between December 10, 2018 and December 11, 2019. Details: BC Building Code 2018 (external link) 2018 BC Building Code technical bulletin B18-04 (PDF) List of BC Code Revisions (PDF 1.4MB) Ministerial Order adopting the BC Building Code 2018 (PDF)

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Stair Width. Most residential codes require stairs to be 36 in. wide. However, they allow railings to project 31/2 to 41/2 in. into the width on either side. They also allow trim, such as finished stringers, up to 11/2 in. thick. Tread and Riser Dimensions. It is critical for safety that the rise and run of every step in a stairway is consistent.

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2018 BC Building Code Changes 9.8. Stairs, Ramps, Handrails and Guards 9.8.3. Stair Configurations. The required rise and run dimensions have changed for stairs as listed in Table 9.8.4.2. and shown below. The dimensions shown below also apply to some tapered treads. The changes of dimensions reflect current research on stair safety.

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Maximum 12 feet vertical height (rise) for a flight of stairs. Maximum 7 inch stair riser height and minimum 4 inch stair riser height. Minimum 11 inch stair tread depth. For more information, see Section 1011 of the 2015 International Building Code for a more in-depth look at commercial stair requirements. __.

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The British Columbia Building Code | Section 9.8. | Stairs, Ramps, Handrails and Guards

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Number and Location of Exits from Floor Areas. 3.4.2.1. Minimum Number of Exits. 1) Except as permitted by Sentences (2) to (4), every floor area intended for occupancy shall be served by at least 2 exits. 2) A floor area in a building not more than 2 storeys in building height, is permitted to be served by one exit provided the total occupant.

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Therefore let us recap on the residential stair code requirements: Minimum 36 inch clear width for stairway. Maximum 4-1/2 inch handrail projection into stairway width, on either side. Minimum 6′-8″ headroom height clearance for stairway. Maximum 12′-7″ vertical height (rise) for a flight of stairs. Maximum 7-3/4 inch stair riser height.

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Part 9 - Housing and Small Buildings Division B: Acceptable Solutions Division B Revision 2.01 British Columbia Building Code 2018 9.9.4.7. Stairways in 2 Storey, Group D or E Buildings 1) Where a suite of Group D or E occupancy is located partly on the first storey and partly on the second storey, stairways serving the second storey of that suite need not be constructed as exit stairs provided,

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a) a straight line drawn tangent to the tread nosings of the stair served by the handrail, or. b) the surface of the ramp, floor or landing served by the handrail. 2) Except as provided in Sentences (3) and (4), the height of handrails on stairs and ramps shall be. a) not less than 865 mm, and. b) not more than 965 mm.

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CLICK ANYWHERE on THIS PAGE to RETURN to BUILDING CODES & DOWNLOADS at InspectApedia.com. 9.8.3.3. 312 Maximum Height of Stairs 1) The vertical height of any flight of stairs shall not exceed 3.7 m. 9.8.3.2. 2) a) b) c) 3) Stairs within dwel/ing units shall consist of straight-run flights, curved flights, or straight runs with winders.

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Division B - Section 9.8. Stairs, Ramps, Landings, Handrails and Guards Division B - Section 9.9. Means of Egress Division B - Section 9.10. Fire Protection Division B - Section 9.11. Sound Transmission Division B - Section 9.13. Dampproofing, Waterproofing and Soil Gas Control Division B - Section 9.32. Ventilation Division B.