Learn more about the basics of deck railing code-compliance and installation in the Deck Railing Guide and Glossary of Deck Terms and Lingo . The height of your front entry step (called Risers), according to code, can be no higher than 7 3/4 inches . The BC Building and Plumbing Code, which set the technical requirements for building construction throughout B.C. Consult your local building codes to get all the details and formulas you’ll need to make sure your stairs are up to code. How do you think about the answers? Typical Detail for Stairs, Guard, & Handrails . Handrail ends must be returned and terminated at rail posts. for Single Family Dwelling Units . What is the height code for building steps outside? The tread depth can then be obtained by using the above formula. If the bottom or top step is noticeably different in height or length from the other stairs, it will be a tripping hazard. Before you finalize the design and get your toolkit ready, you should first be thorough with Ontario building code for railing height. The top edge of the handrail must be placed between 34” and 38” above the nosing of the stair treads. International Building Code for Stair treads and risers 1009.3 Stair treads and risers. Exception: Private stairways serving an occupant load of less than 10 and stairways to unoccupied roofs may be constructed with an 8 inch maximum rise and a 9 inch minimum run. A handrail must be between 865mm and 1070mm (34 and 42 inches) above the nosing. Stair tread depths shall be 11 inches (279 mm) minimum. In the U.S., the I-Codes require handrail placed between 34 and 38 inches. 0 0. The overall width of a set of outdoor stairs should be a minimum of 4 feet in a private setting, and 5 feet in a public space. You can find some more information here as well on other stair-related dimensions. 2)Except as provided in Sentence (3), the clear height over stairs shall not be less than 2 050 mm. • Handrail height must be 34 to 38 inches high, measured from the tread nosing or ramp surface, with two exceptions allowed: 1) a volute (shown below) is allowed over the lowest tread, and 2) the transition from handrail to guard, or at the start of a stair flight, my exceed 38 inches. Outdoor Stair Railing Height Ideas Latest Code Correct August 31, 2017 Justin Quinn Home Elements And Style 105 Visited Exceptions Certain types of stairs have special requirements. Code states that this should not be greater than 7 3/4 inches (194 mm). OUTDOOR STEP HEIGHT. The Ontario Building Code | Stairs 3.4.7.5. The most important dimensions are the riser height and tread depth. × USA RAIL HEIGHT FOR RESIDENCES. The following stair measurements are important: The rise of each step is measured from the top of one tread to the top of the next tread. The recommended range for riser height, in an outdoor set of steps, is a minimum of 4.5 inches to a maximum of 7 inches. Decking. Guardrails are required once the deck is 30 ″ or more above grade. The greatest riser height within any flight of stairs shall not exceed the smallest by more than 3/8 inch. (d) Surface. example: (2 x … … Revised: 2019-JUL-04 2018 BC Building Code G:\DSDSystem\Handouts\Building\Residential\StairsResidentialDetail.docx . It is not the physical height of the riser; the latter excludes the thickness of the tread. Source(s): building steps height code: https://tr.im/BP0bN. Outdoor Stair Treads; Material. The NCC is updated and amended regularly. For handrails in Canada, the height should be 32-36 inches above the stairs. Handrails, Guards and Stairs . You can sign in to vote the answer. Risers - the Step Height [F] is the typical height of each step. 1℃ and an outdoor air temperature of -18℃ +/- 1 ... • Height of guards serving flight of exit stairs in Part 3 / 9 is harmonized (previously 920mm and 1070 mm) to all be 1070 mm • No open riser stairs permied in public stairs, only permied within dwelling units and industrial occupancies. When planning the look of your concrete stairway, don't sacrifice functionality for flair. Treads should be between 235 mm (9 ¼”) and 355 mm (14”). The rise of the stairs should be between 125 mm (5”) and 200 mm (8”). Aluminum (12) Composite (2) Plastic (1) Rubber (1) Wood (3) Assembled Depth (in inches) 0.5 in to 1 in (1) 7 in to 10 in (3) 10 in to 15 in (8) 24 in to 30 in (1) 36 in to 42 in (4) 42 in to 48 in (4) 48 in to 60 in (4) Brand Name. The current edition is NCC 2019, adopted by the jurisdictions July 1, 2020. Deck stair handrails height should be at least 34 vertical inches from stair tread nosing to the top of the stair handrail. Building codes in many areas define maximum step height and minimum step length, but in areas where it is not defined, Council of American Building Officials and International Code Council both recommend the rise to be no more than 7.75 inches and runs to be no less than 10 inches. If a ledger board isn't present, install one and measure from the front of the board. Handrail Height. This means that a handrail's height is measured from the top of the stair treads, or horizontal stepping members. Outdoor Stairs. Some common relationships between the riser and tread for patio stairs are: 4-inch riser = 18-inch tread; 5-inch riser = 17-inch tread; 6-inch riser = 14-inch tread; 7-inch riser = 12-inch tread ; Whatever combination you select, keep all stairs risers the same. To calculate if the steps will be within the Building Codes specs : 2 times the step riser height + 1 tread width equals between 24 and 25 in inches (60.96cm and 63.5cm). Pro Tip. Thirty-six inches is the most common residential height, but some jurisdictions vary. Most building codes require handrails for exterior stairs to be between 34 inches and 38 inches above the stair nosings. R P A. Lv 5. The code lets you build not only a beautiful deck but also a safe one. Accessibility • 3.8.3.1. They should be installed on: 1 decade ago. The accepted minimum riser height for a patio step is 4 inches and not higher than 7 inches. The tread of the stairs (or the part of the stair where you place your foot) must be at least 11 inches. The handgrips must allow a minimum of 1-1/2” space between the handrail and the guardrail or wall. Sign in. (2) Stairway headroom shall be not less than 1 950 mm plus the height of one riser measured vertically above the nosing of any tread or platform. A deck’s stairway should be carefully planned so that all the stair rises (the vertical height of the steps) and all the tread depths (the horizontal length of the step runs) are equal. Use these measurements to determine the length of the stringers (supports) and the distance from the house to the base of the stringers. The run should be between 210 mm (8 ¼”) and 355mm (14”). The riser height shall be measured vertically between the leading edges of adjacent treads. Decks 24" to 5-10" (180 cm) need 36" guards and anything above 5-10" requires a 42" high railing. If it does not, then you’ll need a separate handrail attached to your deck stair guardrail, between 34” and 38” in height. STAIR WIDTH Over the years, many designers and safety codes officers have had disagreements as to how the width of a flight of stairs is to be measured. Re: Building Code for Railings That depends on jurisdiction. Building Materials. 5-1/2” & 35-1/2” 35-1/2”” 35-1/2”” 6’ 4-3/4” 42” 15” LOCATED AT 4.2 M ABOVE THE ADJACENT LEVEL 9.8.8.6 . There are codes that apply country-wide as well as province-wide. All Risers (the height of the steps) and Treads (the part you step on) must all be the same; uniform. Make sure the planned stairs are all the same height and depth, and that the stair height and width conform to local building codes. Stairs ≥ 2200mm (87 inches) require an intermediate handrail such that a user is no more than 825mm (32 inches) from a handrail. Stair riser heights shall be 7 inches (178 mm) maximum and 4 inches (102 mm) minimum. Unit run is measured from face of nosing to face of nosing. Entry Step Risers & Treads. Multi-family dwellings and commercial require 42" across the board. However, wider stairs are typically more inviting and can feel safer for users, particularly in crowded public spaces. One of the best ways to ensure the safety of your deck is by installing a handrail. They should be in proportions that will comfortably accommodate the average person's stride. Get Started! For outdoor steps, the common formula for comfortable proportioning is 2(R) + T = 26” to 27”, where R = riser height (in inches) and T = tread depth (in inches). Canada REsidential Rail Height and Dimensions. Height over Stairs 1)The clear height over stairs shall be measured vertically, over the clear width of the stair, from a straight line tangent to the tread and landing nosings to the lowest point above. NOTE: NCC 2015 was adopted by the States and Territories on 1 May 2015. (See Note A-3.4.3.4.) CITY OF NANAIMO HARBOUR CITY … Stairs (1) Stairs shall be inclined at an angle of not more than 45° with the horizontal, and their steps shall have risers not more than 210 mm high and treads not less than 220 mm wide exclusive of nosing. Generally, the stair's rise (or the height of each step) must be between four inches and seven inches to create a safe stepping distance. 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