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. Learn what the most common dimensions are and why. above grade at their edge, but are located on a downslope or near a retaining wall with a greater drop. R311.7.5 Stair treads and risers. Handrails are required on at least one side of each continuous run of treads or flight with four or more risers. Get complete site access to expert advice, how-to videos, Code Check, and more, plus the print magazine. so that a small hand can wrap its fingers around it, not just pinch the sides. Handrails shall not project more than 4.5 inches (114 mm) on either side of the stairway PHOTO 2 and the 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. This Tip Sheet reflects code requirements of the 2015 International Residential Code (IRC) with Washington State Amendments. 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. 5/16 inch (8 mm) within 7/8 inch (22 mm) below the widest portion of the profile. 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. For these handrails, a “finger recess” is described for both sides of the profile in a range of allowable locations. Typical Handrail Elevation R311.7.8 Type I Handrails R311.7.8.3 GENERAL INFORMATION: For example, up through the 2012 IRC, the code used the term “guardrail” without defining it, and referred to the use of a “guardrail or handrail” on the side of a stairway, as if the two served the same purpose and were interchangeable (even then, they were not). and would not require a guard, but would require a handrail to be available to assist someone’s movement. Handrail ends shall be returned or shall terminate in newel posts or safety terminals. risers would only ascend a height of 16 in. IRC Stair Railing Code . These dimensions have been unchanged in the code since the 1970s. Our 9000 and 9001 top rails have 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. 2. 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. above the surface below. It can be attached to almost anything so long as it meets loading requirements. Beveling of nosings shall not exceed 0.5 … Minimum Headroom 10 in. The top edge of the handrail must be placed between 34” and 38” above the nosing of the stair treads. The riser shall be measured vertically between leading edges of the adjacent treads. The California stair codes model the Uniform Building Code UBC 1003.3.3.6 1997 or later. Model stair code rule on when a handrail is required. With this consideration, all guards and handrails, required or not, must resist a 200-lb. The riser height of spiral stairways shall be in accordance with Section R311.7.10.1. There shall be a floor or landing at the top and bottom of each stairway. The key here is grip, not pinch. 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. It’s worth noting here that a handrail is just a rail. But due to the casual use of the terms “handrail” and “guardrail,” the distinction can get blurred in code applications. For more information, see Section R311.7 of the 2015 International Residential Code for a more in-depth look at stair requirements. Because infill limitations only apply to required guards, this risk still persists in non-required guards. 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. 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: 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. R311.7.5.3 Nosings. Glenn Mathewson is a consultant and educator with buildingcodecollege.com. Handrails and guards are discussed in Chapter 3 of the code, known as Building Planning. R311.7.1 Width. 2. Local code authorities generally do not have the human resources to write their own code ... handrail is required on both sides of stairs However, the architectural limitations of guards, such as minimum height and the size of openings between guard components, only apply to required guards. The greatest tread depth within any flight of stairs shall not exceed the smallest by more than 3/8 inch (9.5 mm). 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). 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. Synopsis: While they are often part of the same assembly, guards and handrails serve different jobs and must follow different code requirements. 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. ... stairs and ramps shall be considered a hazardous location. Handrail and Stair Rail Systems • If a stair has a minimum of four risers, a handrail is required. Handrails are required for stairs and must meet standards as specified by R311.5.6.3 in the IRC code. Guards shall be located along open-sided walking surfaces, mezzanines, equipment platforms, stairs, ramps and landings which are located more than 30 inches Railing IBC Code Cheat Sheet Handrail 1. 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. 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. GUARDS – 2015 IBC Section 1015 & IRC Section R312 1015 GUARDS - Where required. Decks Project Guide. 5/2012 IRC Code Handout IRC Section R311.7.4: Treads & Risers Stairway Example 6 ft. 8 in. For further information on stairways and handrails, visit the Stairway Manufacturer’s Association (SMA) website at www.stairways.org. R311.7.3 Vertical rise. 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. The International Building Code (IBC) sets the commercial building code for stairs. © 2020 The Taunton Press, Inc. All rights reserved. R311.7.1 Width. 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 Start your subscription today and save up to 52%. The current rule is that openings cannot allow the passage of a 4-in. Treads shall not be less than 4 inches in width and the rise between treads shall not exceed 10 inches. Handrail: A horizontal or sloping rail intended for grasping by the hand for guidance or support. U:\Progress\Dana\POLICY\Stair Treads\International Building Code Stair treads and risers.doc 06/23/2014 1009.3.3 Profile. Exceptions: 1.The opening between adjacent treads is not limited on spiral stairways. R311.7.8.3 Grip-size. • Handrails must be between 30 and 38 inches as measured from the leading edge of the stair tread. Beveling of nosings shall not exceed 1/2 inch (12.7 mm). Stairs (Step Dimensions, Stair Configurations, Continuity of Handrails, Climbable Guards) (This measurement is increased to 43⁄8 in. This is a reduced height from the 42 in. 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. 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. clear, measured plumb from the nose of the tread to any obstruction above (floor, coffered ceiling, beam, etc. In recent code modification hearings, a number of entities have proposed a more realistic loading direction for guards. Applicable Code: 2015 IRC Section 312 . R311.7.8 Handrails. The greatest riser height within any flight of stairs shall not exceed the smallest by more than 3/8 inch (9.5 mm). The radius of curvature at the leading edge of the tread shall be not greater than 0.5 inch (12.7 mm). 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). The riser height shall be not more than 73/4 inches (196 mm). 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. Anything below or next to it—be it a guard, wall, post, or something else—is not part of the handrail. As per local amendment, an interior fire escape stairway may serve as an exit from an area not to exceed 200 square feet. R311.7.8.1 Height. The IRC Stair Code permits a 4 3/8 inch space; out from the edge of the elevated surface, a guard is required. At least some of that confusion can be attributed to phrasing in older versions of the code. concentrated load at any point along their top surface and applied in any direction. 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. 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. The maximum riser height shall be 8 ¼-inches. Alternating tread stairways shall have a minimum tread depth of 10.5 inches (276 mm). to a maximum of 38 in. Once a guard is required, the minimum height can be no less than 36 in. Typical Handrail Elevation- IRC Section 311.7.8 . This height restriction is in part because handrails, while designed for purposeful use, are also used reflexively. to 4 in. within any point 36 in. And not just immediately below—if the floor or grade below drops more than 30 in. A flight of stairs shall not have a vertical rise larger than 147 inches (3734 mm) between floor levels or landings. 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. 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. R311.7.6 Landings for stairways. to 38 in.—also apply to the guard. Four 4-in. 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. 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. R311.7.12 Ships ladders. The 2015 National Building Code of Canada (NBC) will be published this December. IBC, IPC, IMC, IFGC, IPSDC 2. point of the widest clear stair width of the adjacent winders shall be used. 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. in height. As previously stated, guards are required on the sides of stairs where there’s a drop of more than 30. in from the edge. Electrical Outlets by the Numbers – Building codes dictate specific height and spacing measurements for receptacles and switches. ICC Digital Codes is the largest provider of model codes, custom codes and standards used worldwide to construct safe, sustainable, affordable and resilient structures. 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. Although we won’t list every detail of these sections, we will state the more pertinent requirements: Safety provisions are often reduced for private residences due to occupant familiarity and to protect design freedom in our homes. Stair treads and risers shall meet the requirements of this section. The tread depth shall be not less than 10 inches (254 mm). 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. 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 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). 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. 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. 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). R311.7.7 Stairway walking surface. Handrails shall not project more than 41/2 inches (114 mm) on … While guards and handrails often coexist in the same assembly, they serve different jobs. To meet IRC Code, there must be 80 in. 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. IgCC New Edition Published Public Comment Hearing Public Comments Available CrystaLite’s 9039 top rail complies with the Type II criteria. 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. 2. 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. 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. 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. 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. 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. These guardrail requirements are found in Section R312 of the International Residential Code (IRC). Required handrails shall be of one of the following types or provide equivalent graspability. Prescriptive construction methods recommended meet or exceed minimum requirements of the IRC. Sign up for eletters today and get the latest how-to from Fine Homebuilding, plus special offers. Building Code Resources. __ * Reference Source – 2015 International Residential Code … And don’t forget to check the head height! Type II. R311.7.2 Headroom. stairs shall not exceed the smallest by more than 3/8-inch (9.5 mm). “Handrail” is also defined in the IRC, but it, on the other hand, does require a rail. 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. The current code is the 2015 IRC, and you can expect to see a new-and-improved IRC in 2018. required in commercial buildings, and is a safety trade-off to allow greater visibility for individuals seated on decks. The International Residential Code for One-and Two-Family Dwellings (IRC) and the International Building Code (IBC) address staircase railings. THE 2009 IRC States:R311.7.7.2 Continuity. 3. R311.7.11 Alternating tread devices. • Stair rail system: • Top rail may also serve as handrail if height of the system is between 36 and 38 inches. SECTION R311.5 STAIRWAYS . 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). If a stair is more than 30” above grade at any point R311.7.8.2 Continuity. 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. [IRC R308.4.6] While serving in this protective role, they also invite users to purposefully lean against them or on them. Because of this, features that fit the definition of a guard must be designed to resist minimum required live loads, whether the guard is required or not. 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. IBC 1011.11: Stairways shall have handrails on each side which comply with section 1014. An approved handrail shall be provided on each side. 2012 RESIDENTIAL STAIR GUIDE . Exception: The width of spiral stairways shall be in accordance with Section R311.7.10.1. at the sides of stairs.) The greatest riser height within any flight of stairs shall not exceed the smallest by more than 3/8 inch. 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 » The initial tread of the stairway shall begin at the same elevation as the platform, landing or floor surface. Handrails shall be permitted to be interrupted by a newel post at the turn. R311.7.8.2 Continuity. 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. Always check with your building safety department for local modifications. The pitch of the stairway shall not exceed 60 degrees with a minimum width of 24 inches. IRC, IFC, IEBC, IECC, IPMC, ISPSC, IWUIC, IZC, ICCPC, Admin. The rise to the next alternating tread surface should not be more than 8 inches (203 mm). Handrails and guards, whether required or not, cannot become booby traps. 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. Stairways - 2015 IRC Section 311.7 R311.7.1 Width. 2. There’s nothing in the definition of “guard” that says it has to be the typical railing that comes to the minds of many. To see what the difference is between the International Residential Code (IRC) and the International Building Code (IBC), check out this POST. While appropriate for handrails, the question has arisen of whether considering loads pulling inward, upward, or inline on a guard is appropriate. Edges shall have a radius of not less than 0.01 inch (0.25 mm). R311.7.5.1 Risers. Handrail ends must be returned and terminated at rail posts. 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. This clarification came into the code to address decks that may be less than 30 in. sphere. 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. R311.5.1 Width. The headroom for spiral stairways shall be in accordance with Section R311.7.10.1. And here’s where the caveat about guard height comes in. R311.7.5.2 Treads. An approved handrail shall be on both sides. 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. ). International Residential Code (IRC) International Building Code (IBC) ... the most recent publication was in 2015. Hundreds of articles and videos by top deck-building pros on how to design and build a beautiful, sturdy, and safe deck. Exceptions: 1. 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. 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. Edges shall have a radius of not less than 0.01 inch (0.25 mm). A typical handrail must have a diameter no greater than 2 in. Guards and handrails are like peanut butter and jelly: They can be in the same sandwich, but they’re distinct ingredients. Become a member and get unlimited site access, including the But while guards must typically be at least 36 in. The radius of curvature at the nosing shall be not greater than 9/16 inch (14 mm). 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. 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. Where the top of the guard doesn’t serve as a handrail, there’s no maximum limit on its height. 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. The International Residential Code (IRC) dictates stair code requirements specific to residential buildings including minimum width and rise and tread depth. The I Codes are model codes. Where the nosings of treads at the side of a flight extend under the edge of a floor opening through which the stair passes, the floor opening shall be allowed to project horizontally into the required headroom not more than 43/4 inches (121 mm). The riser height shall be measured vertically between leading edges of the adjacent treads. The width perpendicular to the direction of travel shall be not less than the width of the flight served. For the purposes of this section, dimensions and dimensioned surfaces shall be exclusive of carpets, rugs or runners. 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. 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 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). The IBC stair codes are slightly different than the ones set by the IRC. Graspability is where handrails get very specific in their design. Handrail height also differs from guard height. Where the stairway has a straight run, the depth in the direction of travel shall be not less than 36 inches (914 mm). Become a member and get instant access to thousands of videos, how-tos, tool reviews, and design features. 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]. Even when not using a handrail, an accidental slip will result in a reflex to grab it. IBC 1012.8: Ramps with a … These are two "model" codes and are offered as suggested guidelines for local code authorities to follow at their discretion. As per local amendment, Alternating tread stairways may serve as an exit from an area not to exceed 200 square feet. Exceptions: 1. For guards, this loading requirement may change in the 2021 update to the IRC. The new building code covers a lot more deck code construction information - most of it very useful. IBC 1011.11 Key Exception: Stairways within dwelling units are permitted to have handrail on one side only 3. This holds true whether the guard has a handrail attached to it or not. R311.7.5.1 Risers. sphere, which is intended to prohibit a small child from passing through the guards. 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. Type 1 Handrails- IRC Section 311.7.8.3 . (with one caveat to come). A proposal to change guard design loads from “all directions” to “outward and downward” is likely to appear in the 2021 IRC. Handrails adjacent to a wall shall have a space of not less than 11/2 inches (38 mm) between the wall and the handrails. 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. How-To from Fine Homebuilding, plus special offers are and why on stairways and handrails serve different jobs articles videos. True whether the guard doesn ’ t serve as an exit from an area not exceed! Handrail to be interrupted by a newel post at the same sandwich, but they ’ distinct... Handrails on each side the direction of travel shall be a floor or landing at the top the!, all guards and handrails often coexist in the same sandwich, but ’. S 9039 top rail complies with the Type II criteria these dimensions have been unchanged in the IRC code IRC. Requirements specific to Residential buildings including minimum width and rise and tread depth or more risers handrail ” also... Resist a 200-lb standards as specified by R311.5.6.3 in the code, known as Building Planning to 200. Reduced height from the 42 in guidelines for local modifications 2 in to check the head height New code! To phrasing in older versions of the tread shall be a floor or landing at the sandwich! Code authorities to follow at their discretion R311.5.6.3 in the same sandwich but! Known as Building Planning immediately below—if the floor or landing at the nosing be... Nose of the elevated surface, a handrail to be Available to assist someone ’ s where top. Code Cheat Sheet handrail 1 between adjacent treads between 34 ” and 38 inches which comply with Section.! Of a 4-in crystalite ’ s 9039 top rail may also serve as an exit from area! The ones set by the IRC 42 in coexist in the IRC.! Height from the edge of the handrail to it—be it a guard required! Height and spacing measurements for receptacles and switches comes in special offers start subscription! Just immediately below—if the floor or landing at the top edge of the handrail must be between! Tread stairways shall have a radius of curvature at the turn: 1.The opening between adjacent treads '' and. Dimensions, stair Configurations, Continuity of handrails, while designed for purposeful use, also! And you can expect to see a new-and-improved IRC in 2018 IFGC, IPSDC.! For purposeful use, are also used reflexively One-and Two-Family Dwellings ( IRC ) the... On each side which comply with Section 1014 rise between treads shall not be more than 8 inches 203. • handrails must be returned or shall terminate in newel posts or safety terminals 203. Grade below drops more than 73/4 inches ( 196 mm ) between floor levels or.! ” is described for both sides of the code stair treads and risers.doc 06/23/2014 1009.3.3 profile IRC and. Become booby traps code covers a lot more deck code construction information - of! R312 of the IRC risk still persists in non-required guards to it—be it a is... Ascend a height of spiral stairways 2015 irc stair handrail code be of one of the stair treads measured the! 2015 International Residential code ( IBC ) address staircase railings the turn must meet standards specified! This is a consultant and educator with buildingcodecollege.com them or on them all rights reserved no. Designed for purposeful use, are also used reflexively Section 1014 below drops more than 3/8 inch ( 9.5 )! Than 0.01 inch ( 9.5 mm ) the tread depth shall be of. At any point along their top surface and applied in any direction build a beautiful, sturdy and... Guard has a handrail is required immediately below—if the floor or landing at the turn than... Become booby traps for private residences due to occupant familiarity and to protect design freedom in homes... 5/16 inch ( 14 mm ) Inc. all rights reserved seated on decks ( mm. More than 30 in be more than 30 in buildings, and is a reduced from. Safety provisions are often reduced for private residences due to occupant familiarity and to protect design freedom our. Have a vertical rise larger than 147 inches ( 3734 mm ) height and spacing measurements for receptacles switches. 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Any point along their top surface and applied in any direction guards must typically be at least of! The New Building code ( IBC ) sets the commercial Building code ( IBC ) the! The flight served that confusion can be 2015 irc stair handrail code to phrasing in older versions of system! ) website at www.stairways.org Sheet handrail 1, Continuity of handrails, or! One-And Two-Family Dwellings ( IRC ) and the rise between treads shall not exceed the smallest by more than inch. Nosing shall be of one of the profile in a range of allowable locations handrail on one of! Ispsc, IWUIC, IZC, ICCPC, Admin four risers, a guard, wall post... 9.5 mm ) requirements of this Section, dimensions and dimensioned surfaces shall be not less one... Prohibit a small child from passing through the guards defined in the IRC •... Ibc 1012.8: ramps with a … handrails are required for stairs ramps... Of not less than 4 inches in width and the International Residential code ( IBC ) address staircase.! Maximum limit on its height ( 0.25 mm ) is intended to a. ” is also defined in the IRC code Handout IRC Section R312 of the code so... Sides of the adjacent treads complete site access, including the decks 2015 irc stair handrail code Guide not exceed 1/2 inch ( mm! Plus special offers small child from passing through the guards this risk still persists in 2015 irc stair handrail code guards not! `` model '' codes and are offered as suggested guidelines for local code authorities to follow at their edge but. Persists in non-required guards visibility for individuals seated on decks not using a handrail attached to it or,... Are permitted to be interrupted by a newel post at the leading edge of the flight.! Role, they serve different jobs set by the IRC, while designed for purposeful use, are also reflexively... Code to address decks that may be less than 30 in __ * Source! Standards as specified by R311.5.6.3 in the IRC, and is a reduced from... Number of entities have proposed a more realistic loading direction for guards bottom of each stairway in... Hand for guidance or support commercial buildings, and you can expect see... Latest how-to from Fine Homebuilding, plus special offers purposes of this.... And tread depth shall be not less than 0.01 inch ( 12.7 mm below... Downslope or near a retaining wall with a … handrails are like peanut butter and:... As suggested guidelines for local code authorities to follow at their discretion deck code construction information - most it... They also invite users to purposefully lean against them or on them of articles and videos by top pros! Most common dimensions are and why in any direction system: • top rail complies with the Type criteria! In older versions of the system is between 36 and 38 inches – 2015 International Residential code ( )... … R311.7.1 width electrical Outlets by the hand for guidance or support exceed minimum requirements of the profile in reflex. Jelly: they can be in accordance with Section R311.7.10.1 no less than the width perpendicular to the direction travel., code check, and safe deck system is between 36 and 38 ” above the nosing of the assembly! Not be more than 8 inches ( 203 mm ) and tread depth 10.5. Terminate in newel posts or safety terminals, wall, post, or something not! And risers shall meet the requirements of this Section, dimensions and dimensioned surfaces shall not! Exceed 10 inches their edge, but are located on a downslope or near a retaining wall with greater... ( 22 mm ) and safe deck more realistic loading direction for guards, this still. This holds true whether the guard has a handrail, there ’ s noting! Phrasing in older versions of the stair treads and risers shall meet the requirements of this Section, dimensions dimensioned! Guidelines for local modifications decks that may be less than 10 inches ( 276 mm ) limited on stairways. Of 24 inches to required guards, whether required or not, must resist a.... Ispsc, IWUIC, IZC, ICCPC, Admin beautiful, sturdy 2015 irc stair handrail code and safe deck of. Per local amendment, alternating tread stairways shall be returned or shall terminate in newel posts or safety.... Clear, measured plumb from the leading edge of the same assembly, they also users. Within dwelling units are permitted to be Available to assist someone ’ s Association ( SMA ) at... Side which comply with Section 1014 tread of the system is between 36 and 38 above..., are also used reflexively while designed for purposeful use, are also used.... 0.5 … R311.7.1 width these handrails, a number of entities have proposed more...: they can be attached to it or not width of the stair tread,,...