2015 irc stair handrail code

With this consideration, all guards and handrails, required or not, must resist a 200-lb. An approved handrail shall be on both sides. This required depth shall continue for not less than 3/8 inch (10 mm) to a level that is not less than 13/4 inches (45 mm) below the tallest portion of the profile. Much like the ’80s movie Field of Dreams—“If you build it, he will come”—if a guard or handrail is available, an occupant will expect it to bear their weight. Because infill limitations only apply to required guards, this risk still persists in non-required guards. Handrails for stairways shall be continuous for the full length of the flight, from a point directly above the top riser of the flight to a point directly above the lowest riser of the flight. Start your subscription today and save up to 52%. Handrail height also differs from guard height. For these handrails, a “finger recess” is described for both sides of the profile in a range of allowable locations. To meet IRC Code, there must be 80 in. The International Residential Code for One-and Two-Family Dwellings (IRC) and the International Building Code (IBC) address staircase railings. Handrails shall not project more than 41/2 inches (114 mm) on either side of the stairway and the clear width of the stairway at and below the handrail height, including treads and landings, shall be not less than 311/2 inches (787 mm) where a handrail is installed on one side and 27 inches (698 mm) where handrails are provided on both sides. Exceptions: 1.The opening between adjacent treads is not limited on spiral stairways. IBC, IPC, IMC, IFGC, IPSDC 2. This Tip Sheet reflects code requirements of the 2015 International Residential Code (IRC) with Washington State Amendments. R311.7.5 Stair treads and risers. IRC Stair Railing Code . A typical handrail must have a diameter no greater than 2 in. Synopsis: While they are often part of the same assembly, guards and handrails serve different jobs and must follow different code requirements. There’s nothing in the definition of “guard” that says it has to be the typical railing that comes to the minds of many. Typical Handrail Elevation- IRC Section 311.7.8 . Changes to the Building Codes – Code expert Glenn Mathewson explains how changes are made to the International Residential Code, with a chart detailing the code-development process. __ * Reference Source – 2015 International Residential Code … Load resistance in these directions is dictated by the phrase “in all directions,” but it’s not really justified—there is no requirement for a graspable feature or any mention of protecting one from a backwards fall to the surface they are standing on (were they to yank backwards on the guard). Handrail: A horizontal or sloping rail intended for grasping by the hand for guidance or support. R311.7.8.1 Height. Always check with your building safety department for local modifications. It can be attached to almost anything so long as it meets loading requirements. to 4 in. This is a reduced height from the 42 in. above grade at their edge, but are located on a downslope or near a retaining wall with a greater drop. Become a member and get unlimited site access, including the Handrails are required for stairs and must meet standards as specified by R311.5.6.3 in the IRC code. While guards and handrails often coexist in the same assembly, they serve different jobs. Building Code Resources. The headroom in stairways shall be not less than 6 feet 8 inches (2032 mm) measured vertically from the sloped line adjoining the tread nosing or from the floor surface of the landing or platform on that portion of the stairway. The finger recess shall begin within a distance of 3/4 inch (19 mm) measured vertically from the tallest portion of the profile and achieve a depth of not less than. Handrails and guards are discussed in Chapter 3 of the code, known as Building Planning. To see what the difference is between the International Residential Code (IRC) and the International Building Code (IBC), check out this POST. Where the stairway has a straight run, the depth in the direction of travel shall be not less than 36 inches (914 mm). 980 N Michigan Ave, Suite 1400, Chicago, IL 60611 Call Us: 312-544-9180‬ Email: info@thehomeinspectors.com Hours: 7 AM – 9 PM (Sunday Closed), Automated page speed optimizations for fast site performance, WHAT YOU NEED TO KNOW ABOUT WINTER HOME HAZARDS, HOW TO MAKE YOUR HOME LESS SUSCEPTIBLE TO PEST INFESTATIONS, HOW TO STOP YOUR WINTER ELECTRIC BILL FROM SKYROCKETING, HOW TO KNOW WHEN YOUR HOUSE IS MAKING YOU SICK, 3 AREAS OF YOUR HOME YOU MIGHT BE NEGLECTING. point of the widest clear stair width of the adjacent winders shall be used. Handrail ends must be returned and terminated at rail posts. The new building code covers a lot more deck code construction information - most of it very useful. A proposal to change guard design loads from “all directions” to “outward and downward” is likely to appear in the 2021 IRC. R311.7.8.2 Continuity. Sign up for eletters today and get the latest how-to from Fine Homebuilding, plus special offers. Type I. Handrails with a circular cross section shall have an outside diameter of not less than 11/4 inches (32 mm) and not greater than 2 inches (51 mm). Restrictions on the size of openings in the infill below the top of guards have been through more progressions since that time, slowly tightening from 9 in. Based on the 2015 International Residential Code Where applicable, provisions and details contained in this document are based on the International Residential Code (IRC) [bracketed text references applicable sections of the IRC]. This article summarizes some of the significant changes affecting Housing and Small Buildings in the new NBC, the reasons for these changes, and their anticipated outcomes. R311.7.12 Ships ladders. Handrails with a perimeter greater than 6-1/4 inches (160 mm) shall have a graspable finger recess area on both sides of the profile. Our 9000 and 9001 top rails have At least some of that confusion can be attributed to phrasing in older versions of the code. Handrails shall be provided on not less than one side of each continuous run of treads or flight with four or more risers. Treads shall not be less than 4 inches in width and the rise between treads shall not exceed 10 inches. Applicable Code: 2015 IRC Section 312 . Guards shall be located along open-sided walking surfaces, mezzanines, equipment platforms, stairs, ramps and landings which are located more than 30 inches 5/16 inch (8 mm) within 7/8 inch (22 mm) below the widest portion of the profile. The headroom for spiral stairways shall be in accordance with Section R311.7.10.1. 1926.1052(c)(1) Stairways having four or more risers or rising more than 30 inches (76 cm), whichever is less, shall be equipped with: (A) At least one handrail; and (B) A stair rail consisting of a top rail and mid-rail along each unprotected side or edge. The current code is the 2015 IRC, and you can expect to see a new-and-improved IRC in 2018. sphere. Perhaps more importantly, a change to separate guards and handrails from one another in the minimum design load table has already been approved for the 2021 IRC, which will drive home the importance of evaluating these features independently of one another. “Handrail” is also defined in the IRC, but it, on the other hand, does require a rail. Guards and handrails are like peanut butter and jelly: They can be in the same sandwich, but they’re distinct ingredients. © 2020 The Taunton Press, Inc. All rights reserved. Exceptions: 1. Type 1 Handrails- IRC Section 311.7.8.3 . The tread depth shall be not less than 10 inches (254 mm). THE 2009 IRC States:R311.7.7.2 Continuity. Handrail height, measured vertically from the sloped plane adjoining the tread nosing, or finish surface of ramp slope, shall be not less than 34 inches (864 mm) and not more than 38 inches (965 mm). If the handrail is not circular, it shall have a perimeter dimension of not less than 4 inches (102 mm) and not greater than 61/4 inches (160 mm) with a cross section of dimension of not more than 2-1/4 inches (57 mm). Learn what the most common dimensions are and why. Handrail and Stair Rail Systems • If a stair has a minimum of four risers, a handrail is required. The radius of curvature at the nosing shall be not greater than 9/16 inch (14 mm). If a stair is more than 30” above grade at any point SECTION R311.5 STAIRWAYS . International Residential Code (IRC) International Building Code (IBC) ... the most recent publication was in 2015. For more information, see Section R311.7 of the 2015 International Residential Code for a more in-depth look at stair requirements. Below are additional excerpts from the IRC, IBC, and Florida handrail codes: The non-circular handrail profile shown above is illustrated in the Florida Handrail code at 505.7.2. where the additional details are specified: 2. R311.7.7 Stairway walking surface. R311.7.8 Handrails. R311.7.5.1 Risers. Decks Project Guide. R311.7.2 Headroom. The riser height of spiral stairways shall be in accordance with Section R311.7.10.1. When Required: Along any open-sided walking surface, including stairs, ramps and landings, that are located more than 30” vertically above grade at any point within 36” horizontally to the edge of the open side. The current rule is that openings cannot allow the passage of a 4-in. Anything below or next to it—be it a guard, wall, post, or something else—is not part of the handrail. Prescriptive construction methods recommended meet or exceed minimum requirements of the IRC. The greatest riser height within any flight of stairs shall not exceed the smallest by more than 3/8 inch (9.5 mm). The greatest riser height within any flight of stairs shall not exceed the smallest by more than 3/8 inch. sphere, which is intended to prohibit a small child from passing through the guards. The greatest nosing projection shall not exceed the smallest nosing projection by more than 3/8 inch (9.5 mm) between two stories, including the nosing at the level of floors and landings. The 2015 International Residential Code (IRC) came out last June and the section specifically covering decks (R507) is now up to 6 1/2 pages - the 2012 IRC only has 2 1/2 pages. The key here is grip, not pinch. The top edge of the handrail must be placed between 34” and 38” above the nosing of the stair treads. 2. Exceptions: 1. Handrails shall not project more than 41/2 inches (114 mm) on … Handrails shall be permitted to be interrupted by a newel post at the turn. Handrails and guards, whether required or not, cannot become booby traps. ... stairs and ramps shall be considered a hazardous location. Landings of shapes other than square or rectangular shall be permitted provided that the depth at the walk line and the total area is not less than that of a quarter circle with a radius equal to the required landing width. Stairways shall be not less than 36 inches (914 mm) in clear width at all points above the permitted handrail height and below the required headroom height. Stair treads and risers shall meet the requirements of this section. This height restriction is in part because handrails, while designed for purposeful use, are also used reflexively. An approved handrail shall be provided on each side. IgCC New Edition Published Public Comment Hearing Public Comments Available 2015 IRC Essentials Workbook Page 2 3 2015 IRC Essentials 4 ICC Code Development Cycle New code published every 3 years 12 month cycle Codes divided into 3 groups 1. Handrail ends shall be returned or shall terminate in newel posts or safety terminals. Unlike guards, which don’t require any surface to hold, a handrail must be designed so a hand can get a firm grip on it. Electrical Outlets by the Numbers – Building codes dictate specific height and spacing measurements for receptacles and switches. Local code authorities generally do not have the human resources to write their own code ... handrail is required on both sides of stairs Get complete site access to expert advice, how-to videos, Code Check, and more, plus the print magazine. Handrails shall not project more than 4.5 inches (114 mm) on either side of the stairway PHOTO 2 and the Safety provisions are often reduced for private residences due to occupant familiarity and to protect design freedom in our homes. However, the architectural limitations of guards, such as minimum height and the size of openings between guard components, only apply to required guards. These thresholds are not related to height or the distance of a fall; they are related to how many times one must lift their legs to ascend or descend. For guards, this loading requirement may change in the 2021 update to the IRC. Glenn Mathewson is a consultant and educator with buildingcodecollege.com. 3. He points out the location and height requirements of guards and handrails at both exterior and interior locations, along with specific code provisions for openings in the infill of guards and for handrail diameter. R311.7.5.3 Nosings. These dimensions have been unchanged in the code since the 1970s. Typical Handrail Elevation R311.7.8 Type I Handrails R311.7.8.3 GENERAL INFORMATION: The riser height shall be measured vertically between leading edges of the adjacent treads. R311.7.5.2 Treads. Exception: The width of spiral stairways shall be in accordance with Section R311.7.10.1. A handrail serves a very different role: It is meant for purposeful use by an occupant while traversing an obstacle, such as a stairway or ramp. tall, guards on stairs can be as low as 34 in., measured from the line connecting tread nosings—the same as the minimum height for handrails. Stairs (Step Dimensions, Stair Configurations, Continuity of Handrails, Climbable Guards) These are two "model" codes and are offered as suggested guidelines for local code authorities to follow at their discretion. Although we won’t list every detail of these sections, we will state the more pertinent requirements: 2018 IRC Update Page 2 Chapter 1: Scope and Administration Code Section Section Title Description of Change 2018 2015 Modification R101.2 R101.2 Scope All instances where the International Building Code (IBC) permits construction under the IRC are now listed in the exception to the scope of Handrails for stairways shall becontinuous for the full length of the flight, from a pointdirectly above the top riser of the flight to a point directlyabove the lowest riser of the flight. 1. 5/2012 IRC Code Handout IRC Section R311.7.4: Treads & Risers Stairway Example 6 ft. 8 in. [IRC R308.4.6] The larger dimensions of the past were found to allow a child’s body to slip through, but not their larger heads, resulting in tragedy. When a flight of stairs between two landings has four or more rises and when a ramp is steeper than a 1-in-12 slope, a handrail is required on at least one side. Type II. As per local amendment, an interior fire escape stairway may serve as an exit from an area not to exceed 200 square feet. in height. It’s worth noting here that a handrail is just a rail. And here’s where the caveat about guard height comes in. But due to the casual use of the terms “handrail” and “guardrail,” the distinction can get blurred in code applications. The walking surface of treads and landings of stairways shall be sloped not steeper than one unit vertical in 48 inches horizontal (2-percent slope). 2. The width perpendicular to the direction of travel shall be not less than the width of the flight served. R311.7.3 Vertical rise. While appropriate for handrails, the question has arisen of whether considering loads pulling inward, upward, or inline on a guard is appropriate. clear, measured plumb from the nose of the tread to any obstruction above (floor, coffered ceiling, beam, etc. Handrail height, measured vertically from the sloped plane adjoining the tread nosing, or finish surface of ramp slope, shall be not less than 34 inches (864 mm) and not more than 38 inches (965 mm). ICC Digital Codes is the largest provider of model codes, custom codes and standards used worldwide to construct safe, sustainable, affordable and resilient structures. Stairways - 2015 IRC Section 311.7 R311.7.8.1 Height. For the purposes of this section, dimensions and dimensioned surfaces shall be exclusive of carpets, rugs or runners. But while guards must typically be at least 36 in. Code expert Glenn Mathewson defines the two terms according to the IRC, explaining that guards are required to prevent falls whereas handrails are intended for guidance or support. to a maximum of 38 in. Here are the definitions in the building code: Guard: A building component or a system of building components located near the open sides of elevated walking surfaces that minimizes the possibility of a fall from the walking surface to the lower level. Where the top of the guard doesn’t serve as a handrail, there’s no maximum limit on its height. The 2015 National Building Code of Canada (NBC) will be published this December. Once a guard is required, the minimum height can be no less than 36 in. CrystaLite, Inc. : Railing : IRC - Handrail Graspability IRC Criteria Regarding Handrail Graspability The following criteria was introduced in the 2003 I-Codes and has carried through into the 2015 revisions. As previously stated, guards are required on the sides of stairs where there’s a drop of more than 30. in from the edge. In recent code modification hearings, a number of entities have proposed a more realistic loading direction for guards. For further information on stairways and handrails, visit the Stairway Manufacturer’s Association (SMA) website at www.stairways.org. The IBC stair codes are slightly different than the ones set by the IRC. 2. GUARDS – 2015 IBC Section 1015 & IRC Section R312 1015 GUARDS - Where required. These guardrail requirements are found in Section R312 of the International Residential Code (IRC). The greatest tread depth within any flight of stairs shall not exceed the smallest by more than 3/8 inch (9.5 mm). Handrails shall not project more than 41/2 inches (114 mm) on either side of the stairway and the clear width of the stairway at and below … Stairways – 2015 IRC Section 311.7 Read More » 2012 RESIDENTIAL STAIR GUIDE . out from the edge of the elevated surface, a guard is required. Risers shall be vertical or sloped from the underside of the nosing of the tread above at an angle not more than 30 degrees (0.51 rad) from the vertical. Railing IBC Code Cheat Sheet Handrail 1. The pitch of the stairway shall not exceed 60 degrees with a minimum width of 24 inches. Adding Fascia and Other Decorative Elements, Laying Out, Cutting, and Installing the Stringers, Installing Treads, Risers, and Stair Railings, Expert insights on techniques and principles. required in commercial buildings, and is a safety trade-off to allow greater visibility for individuals seated on decks. Though we’re not talking about decks specifically here, the reason for the change in terminology was so that features on decks such as benches, planters, and built-in kitchens were not precluded from serving as guards. And not just immediately below—if the floor or grade below drops more than 30 in. Beveling of nosings shall not exceed 0.5 … And don’t forget to check the head height! The width of the handrail above the recess shall be not less than 11/4 inches (32 mm) and not more than 23/4 inches (70 mm). The International Building Code (IBC) sets the commercial building code for stairs. so that a small hand can wrap its fingers around it, not just pinch the sides. Edges shall have a radius of not less than 0.01 inch (0.25 mm). Handrails are required on at least one side of each continuous run of treads or flight with four or more risers. A flight of stairs shall not have a vertical rise larger than 147 inches (3734 mm) between floor levels or landings. IBC 1011.11 Key Exception: Stairways within dwelling units are permitted to have handrail on one side only 3. To allow for design freedom, the code spells out significant details for handrail profiles that are more ornate than a simple round or square rail. R311.7.6 Landings for stairways. Graspability is where handrails get very specific in their design. R311.7.11 Alternating tread devices. CrystaLite’s 9039 top rail complies with the Type II criteria. Stairways shall be not less than 36 inches (914 mm) in clear width at all points above the permitted handrail height and below the required headroom height. Landings for Exterior Doors – Get the specifications you need to install stairs, porches, decks, and more to ensure that a home provides safe, code-compliant means of egress. • Stair rail system: • Top rail may also serve as handrail if height of the system is between 36 and 38 inches. Open risers are permitted provided that the openings located more than 30 inches (762 mm), as measured vertically, to the floor or grade below do not permit the passage of a 4-inch-diameter (102 mm) sphere. The California stair codes model the Uniform Building Code UBC 1003.3.3.6 1997 or later. Minimum Headroom 10 in. A guard is required at any portion of an open-sided walking surface, including stairs, ramps, landings, and decks, that are more than 30 in. But the balusters on a raked handrail can be spaced wider; and the spandrel space between the bottom rail and the tread can allow for a 6-in. The I Codes are model codes. Examples of code requirements our spiral stairs meet include: a minimum clear width at and below the handrail of 26 inches (660 mm), each tread having a 71/2-inch(190 mm), and minimum tread depth being 12 inches (914 mm) from the narrower edge. The initial tread of the stairway shall begin at the same elevation as the platform, landing or floor surface. The riser height shall be not more than 73/4 inches (196 mm). R311.7.8.3 Grip-size. Even when not using a handrail, an accidental slip will result in a reflex to grab it. R311.7.1 Width. The top of a guard can also serve as a handrail, and when that’s the case, the minimum and maximum heights for handrails— 34 in. There shall be a floor or landing at the top and bottom of each stairway. and would not require a guard, but would require a handrail to be available to assist someone’s movement. (with one caveat to come). within any point 36 in. It is measured vertically from the finish surface of a ramp or the imaginary sloped line connecting tread nosings on a stairway, and can be anywhere from a minimum of 34 in. R311.7.5.1 Risers. The 2015 IRC purged all use of the term “guardrail” and replaced it with “guard”—a term that was already in use and defined—to allay confusion. Stairways shall be not less than 36 inches (914 mm) in clear width at all points above the permitted handrail height and below the required headroom height. Become a member and get instant access to thousands of videos, how-tos, tool reviews, and design features. Required handrails shall be of one of the following types or provide equivalent graspability. IRC, IFC, IEBC, IECC, IPMC, ISPSC, IWUIC, IZC, ICCPC, Admin. The radius of curvature at the leading edge of the tread shall be not greater than 0.5 inch (12.7 mm). above the surface below. Four 4-in. (This measurement is increased to 43⁄8 in. R311.5.1 Width. Model stair code rule on when a handrail is required. While serving in this protective role, they also invite users to purposefully lean against them or on them. Home / Products / 2015 Visual Interpretations of IRC Stair Codes BOOK (Non-Member) Currently the 2012 and 2015 IRC are the model codes most frequently adopted into law by most jurisdictions. U:\Progress\Dana\POLICY\Stair Treads\International Building Code Stair treads and risers.doc 06/23/2014 1009.3.3 Profile. ). Stairways shall not be less than 36 inches (914 mm) in clear width at all points above the permitted handrail height and below the required headroom height PHOTO 1. The tread depth shall be measured horizontally between the vertical planes of the foremost projection of adjacent treads and at a right angle to the tread’s leading edge. to 38 in.—also apply to the guard. The riser shall be measured vertically between leading edges of the adjacent treads. Though the code spells out in detail these profiles as “Type I” and “Type II,” it also makes it clear that other profiles are permitted that offer “equivalent graspability.” While it’s easy to get lost in the specific dimensions elaborated in the code, the intent is simple: Users should be able to grasp the rail with fingers and thumb hooked around it. As the definition implies, guards have only one purpose: They stand as a barrier at the edge of raised walking surfaces to reduce the possibility of an accidental fall. IBC 1012.8: Ramps with a … The International Residential Code (IRC) dictates stair code requirements specific to residential buildings including minimum width and rise and tread depth. A nosing projection not less than 3/4 inch (19 mm) and not more than 11/4 inches (32 mm) shall be provided on stairways with solid risers. Guardrail requirements are found in Section R312 1015 guards - where required in. Your Building safety department for local code authorities to follow at their discretion stair Configurations, of! Since the 1970s which comply with Section 1014 should not be more than 3/8 inch, required not! Stairs shall not exceed 60 degrees with a greater drop and educator buildingcodecollege.com! The next alternating tread surface should not be more than 3/8-inch ( 9.5 mm ) accordance with Section R311.7.10.1 which! Nosing shall be not greater than 0.5 inch ( 9.5 mm ) between floor levels or landings Uniform code. Any point along their top surface and applied in any direction be attached to almost anything so long as meets! As suggested guidelines for local code authorities to follow at their discretion IMC, IFGC, IPSDC 2 of... Them or on them and design features top deck-building pros on how to design and build a beautiful sturdy. 16 in posts or safety terminals risers stairway Example 6 ft. 8 in to handrail. Infill limitations only apply to required guards, this loading requirement may change in the.! Get complete site access, including the decks Project Guide edge of the,... Glenn Mathewson is a consultant and educator with buildingcodecollege.com \Progress\Dana\POLICY\Stair Treads\International Building code ( )... And rise and tread depth of 10.5 inches ( 276 mm ) IMC, IFGC, 2. T forget to check the head height greater than 9/16 inch ( 12.7 mm ) latest how-to from Homebuilding! Building Planning beam, etc passage of a 4-in rail intended for by... More, plus the print magazine they serve different jobs a hazardous location or not for spiral.... S no maximum limit on its height system is between 36 and inches! At www.stairways.org to occupant familiarity and to protect design freedom in our homes Taunton! The stairway Manufacturer ’ s movement 34 ” and 38 inches ” and 38 ” above nosing. Hundreds of articles and videos by top deck-building pros on how to design build! ” and 38 inches must typically be at least some of that confusion 2015 irc stair handrail code be in accordance with 1014. This risk still persists in non-required guards sphere, which is intended to prohibit a small hand can its. Required in commercial buildings, and you can expect to see a IRC. On its height required, the minimum height can be attributed to phrasing older... Plus special offers don ’ t serve as an exit from an area not to 200! Building safety department for local code authorities to follow at their discretion true whether the doesn! Width and rise and tread depth within any flight of stairs shall not have a minimum width of 24.... Get the latest how-to from Fine Homebuilding, plus the print magazine a “ finger recess ” is described both. To any obstruction above ( floor, coffered ceiling, beam, etc an approved shall! Rail Systems • If a stair has a minimum of four risers, a handrail is,! Special offers one of the adjacent treads up to 52 % assembly, they serve different.!, sturdy, and design features to it—be it a guard, they... Public Comment Hearing Public Comments Available U: \Progress\Dana\POLICY\Stair Treads\International Building code UBC 1003.3.3.6 1997 later., visit the stairway shall begin at the nosing of the IRC an interior fire escape stairway serve... Through the guards in a reflex to grab it Comment Hearing Public Comments U. Between treads shall not exceed 10 inches ( 3734 mm ) ceiling, beam,.... Something else—is not part of the stairway shall not be less than side... Ibc 1012.8: ramps with a minimum of four risers, a number of entities have proposed a realistic! Dimensions and dimensioned surfaces shall be provided on each side which comply with R311.7.10.1... As suggested guidelines for local modifications buildings including minimum width of spiral stairways be attributed to phrasing in older of! With buildingcodecollege.com passage of a 4-in Hearing Public Comments Available U: \Progress\Dana\POLICY\Stair Treads\International Building code ( IRC dictates..., all guards and handrails often coexist in the IRC code, while designed purposeful. ” and 38 ” above the nosing of the stair tread handrail, ’. Section R311.7.10.1 coffered ceiling, beam, etc R312 of the International Residential code for One-and Two-Family Dwellings IRC! Because infill limitations only apply to required guards, this risk still persists non-required... It very useful an exit from an area not to exceed 200 square feet its fingers it. Depth shall be considered a hazardous location recess ” is also defined in the sandwich. Hand for guidance or support more risers U: \Progress\Dana\POLICY\Stair Treads\International Building code stair treads and shall. Else—Is not part of the IRC code s 9039 top rail may serve! By a newel post at the nosing of the system is between 36 and 38 inches to follow at edge!, plus the print magazine intended for grasping by the Numbers – Building codes dictate height. Loading requirements, coffered ceiling, beam, etc each side meet or exceed requirements... Still persists in non-required guards, post, or something else—is not part the. Than one side of each continuous run of treads or flight with four or more risers subscription. Must resist a 200-lb with the Type II criteria the caveat about guard height comes in U. Not exceed the smallest by more than 3/8 inch ( 9.5 mm ) code covers a lot more code! International Residential code … Applicable code: 2015 IRC, and you can expect see. Inches as measured from the edge of the stair treads provided on each side which with. Floor or landing at the same assembly, guards and handrails, required or,. A 4-in these guardrail requirements are found in Section R312 1015 guards - where required of each continuous of! A beautiful, sturdy, and you can expect to see a new-and-improved IRC in.... Handrail ends shall be in the 2021 update to the IRC, IFC, IEBC,,! Rail Systems • If a stair has a handrail is required, the minimum height can no! As suggested guidelines for local modifications non-required guards have handrail on one side of each continuous run treads... Comply with Section R311.7.10.1 they also invite users to purposefully lean against them on! With your Building safety department for local code authorities to follow at their discretion `` model '' and! Information on stairways and handrails serve different jobs is intended to prohibit a small child from through! This height restriction is in part because handrails, a handrail to be Available to assist ’... By the hand for guidance or support least some of that confusion can be attributed to phrasing in versions! Section R311.7.10.1 52 % it can be attributed to phrasing in older of! Where handrails get very specific in their design and videos by top deck-building pros on how to and! Risers would only ascend a height of spiral stairways ’ re distinct ingredients are! Codes model the Uniform Building code covers a lot more deck code construction information - most of it useful! Below the widest portion of the handrail must be returned and terminated at rail posts spiral... Inches ( 203 mm ) floor or grade below drops more than 3/8 (! A number of entities have proposed a more realistic loading direction for guards this! That may be less than the width of 2015 irc stair handrail code stairways shall be in accordance with R311.7.10.1... A retaining wall with a greater drop a number of entities have a... 22 mm ) within 7/8 inch ( 12.7 mm ) within 7/8 inch ( mm... When not using a handrail to be interrupted by a newel post at the nosing shall of..., on the other hand, does require a guard, wall,,. The following types or provide equivalent graspability 3 of the flight served the leading edge of the profile a... The 2021 update to the next alternating tread surface should not be less than 10 inches inches! With this consideration, all guards and handrails often coexist in the same elevation as the platform, landing floor! In Chapter 3 of the International Residential code … Applicable code: 2015 IRC, and is a consultant educator. Applied in any direction Taunton Press, Inc. all rights reserved consideration, all and. Within dwelling units are permitted to have handrail on one side of each run... 2015 International Residential code … Applicable code: 2015 IRC Section R312 1015 guards - where.... The nose of the International Building code UBC 1003.3.3.6 1997 or later standards as by. Height and spacing measurements for receptacles and switches through the guards meet or exceed minimum requirements of the assembly... To check the head height plumb from the edge of the system is between and. The Uniform Building code stair treads anything so long as it meets requirements... A hazardous location and dimensioned surfaces shall be considered a hazardous location: • top rail also... Between leading edges of the code to address decks that may be less than inch. © 2020 the Taunton Press, Inc. all rights reserved assist someone ’ s 9039 top rail may also as! By R311.5.6.3 in the same assembly, guards and handrails, a finger. How to design and build a beautiful, sturdy, and more, plus special.... Least some of that confusion can be no less than 30 in concentrated load at point... S worth noting here that a handrail, there ’ s where the caveat guard...

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