but tread wear indicator bars or the penny test can help you ensure you’re above the minimum tread depth requirements. Stair treads and nosings are addressed, respectively, by Sections R311. Stairwells and Stairs. Placement C. Section R311: Means of Egress in the IRC code states that staircases should have a minimum width of 36 inches. Handrails and the top rails of stair rail systems are capable of withstanding, without failure, a force of at least 200 pounds (890 N) applied in any downward or outward direction within 2 inches (5 cm) of any point along the top edge of the rail. 1060) are explained in this discussion. For Employers ; Worker Rights ; Workers Memorial ;. The means of egress protection requirements work in coordination with other sections of the code, such as protection of vertical openings (see Chapter 7), interior finish (see Chapter 8), fire suppression and detection systems (see Chapter 9) and numerous others, all having an impact on life safety. 2 requires that stair riser heights shall be 7 inches (178 mm) maximum and 4 inches (102 mm) minimum. 3. We hope you find this information helpful. 25(f)(1) Have a series of treads includes at a slope a 50 to 70 degrees from the horizontal; 1910. US: For winder stairs, treads should have a depth of at least 10 inches measured at a point 12 inches from the side where the treads are narrowest. The efforts of. 451(m)) and proposed (1926. 24(h) 1926. Source: 39 FR 23502, June 27,. b. Tread depth on stairs must be a minimum of 10”, not including the nosing. The stair will be installed at a 70-degree angle or less. 28; (2) Vertical clearance above any stair tread to any overhead obstruction is at least 6 feet, 8 inches (203 cm), as measured from the leading edge of the tread. (36″ wide areas served by less than 50 people) Railings & Guardrail: OSHA requires railings on open sides of stairwells and a handrail on at least on the side, preferably the right side descending at. 24 (a) (2) Each step bolt is designed, constructed, and maintained to prevent the employee's foot from slipping off the end of the step bolt; 1910. 70 (A) (2) (a) In dwelling units, not less than one wall switch-controlled lighting outlet must be installed. Subtract $328. If there are more than four stairs in a stairway, they must have fixed railings. 1 Labeling. Refer to -8 for a detail that provides adjustment during detailing. On November 18, 2016, OSHA published a final rule on Walking-Working Surfaces and Personal Protective Equipment (Fall Protection Systems) in the Federal Register ( 81 FR 82494 ). Ship stair (ship ladder) means a stairway that is equipped with treads, stair rails, and open risers, and has a slope that is between 50 and 70 degrees from the. Intercommunicating stairway. Treads shall be 11 inches (280 mm) deep minimum. 2. 4. 5 inches (15. Solid or open tread surface is required;. Inspect the winder stair treads. Life Safety Code, or IFC-2009, International Fire Code (incorporated by reference, see § 1910. The employer must ensure guardrail systems meet the following requirements: 1910. Ramps, Runways, Stairwells, and Stairs. The OSHA catwalk width requirements are found in section 1910. 28 (b) (11) (ii) Table D-2 contains a printing error, which OSHA will correct in a published notice. For stairs, a barrier of at least 865 millimetres high above the ‘nosing’ of the stair treads is required. 29 (b) (1) The top edge height of top rails, or equivalent guardrail system members, are 42 inches (107 cm), plus or minus 3 inches (8 cm), above the walking-working surface. Open risers are permitted, provided that the opening between treads does not permit the passage of a 4-inch diameter sphere. 24 (a) (3) Step bolts are uniformly spaced at a vertical distance of not less than 12 inches (30 cm) and not more than 18 inches (46 cm) apart, measured center to center (see Figure D-6 of this. S. 2120. The largest tread width or riser height in any flight of stairs. 10, 1984] OSHA standard 1910. 36(a)(1). The maximum vertical distance between treads (riser height) is the same 18 in. 2010 ADA Standard 504. Maximum 7-3/4 inch stair riser height. Handrails must be 30-38 inches above the leading edge of the stair tread. 21 (b) Definitions . Download Drawings, CAD, Spec, and LEED documents at Nystrom. Maximum 4-1/2 inch handrail projection into stairway width, on either side. 28 (b) (5) (ii) (A). 31-1/2 inches. The following definitions apply in this subpart: Alternating tread-type stair means a type of stairway consisting of a series of treads that usually are attached to a center support in an alternating manner such that an employee typically does not have both feet on the same level while using the stairway. Plastic composite deck boards and stair treads, or their packaging, shall bear a label that indicates compliance to ASTM D7032 and includes the allowable load and. Therefore, if your stair railings are 30-34" as specified in §1910. 7. com Nystrom. 5 requires "the leading 2" of the tread shall have visual contrast of dark-on-light or light-on-dark from the remainder of the tread. Strength OSHA's stair requirements cover various aspects, including the minimum width of stairs, the height and depth of steps, handrails, slip-resistant surfaces and more. This includes, but is not limited to, requirements related to: general structural design, fire-resistant construction, light, ventilation, sanitation, plumbing fixture clearances, minimum room area and ceiling. b. 25(c)(1) Are installed at angles between 30 to 50 degrees from the horizontal;. • Recognizes and clarifies design requirements for buildings within tsunami inundation zones. The IBC mandates a minimum tread depth of 11 inches (279 mm) for commercial staircases, with nosing projections between ¾ and 1 ½ inches (19-38 mm). Risers and treads were required not to vary by more than 6 mm (¼”). Summary of the similarities and differences of CONTAINERISATION and OSHA stair required to support safety standards in the workplace also in public spaces. This letter constitutes OSHA's interpretation of the requirements discussed. A ladder or stairway must be provided when the worksite has a break in elevation of 19” (48cm) or more, and there is no runway, ramp, embankment, or personal hoist for workers’ access. B. Risers shall be 4 inches (100 mm) high minimum and 7 inches (180 mm) high maximum. 1910. Direct Metals ® supplies Traction Tread™ metal safety grating that can be used for multiple applications, making many work surfaces safer. 25”) and 355 mm (14”), between successive steps; rise: between 125 mm (5”) and 200 mm (7-7/8”), between successive treads; landing: less than 4. Treads should not slope more than 2%. (2) Trim shall not reduce the required width by more than 3 1/2 inches. In addition to paragraph (b) of this section, the employer must ensure standard stairs: 1910. Do not use a portable ladder with single rails. Slope between 30° and 50° from the horizontal. Stair landings are required at top and bottom (with exceptions at top of interior stairs or in garage if door swings in, away from the stairs), and the stair landing must extend no less than three feet (>= 36. Code requires guardrail in residential structures be a minimum of 36 inches. 5. The measurement of 865 millimetres can be taken vertically anywhereSee Sections 1609 for wind design requirements and 1613 for earthquake design requirements. OSHA sets and enforces standards to assure safe and healthy working conditions for working men and women. 2. An employer must ensure that a walkway, runway or ramp. Height: Minimum handrail height is 30 inches. 4. NE Salem, OR 97301-3882 Basic OSHA Stair Requirements. 21 establish a stair risers as the upright (vertical) or inclined member of a stair that is located at the back of a stair tread or platform and connects close to the forefront edge is the next bigger tread, rail, or landing. 23(e), Railing Specifications. Part 1910. When inspecting the condition of stairways in your place of work, here are some items to watch out for. These stairs must have a 22-inch wide and 30-inch deep landing for every 12 feet of vertical rise and be set at an angle between 30 and 50 degrees from the horizontal. NEC 210. 23 that addresses stair railings is subsection (e) (2) and not (e) (1). [39 FR 23502, June 27, 1974, as amended at 43 FR 49744, Oct. The IBC mimimum requirements for wide stairs are: A handrail on both sides of the wide stairway. The ‘nosing’ of the stair treads can be measured by placing a string line, or straight object, where each stair tread begins, forming a slope. Stairs can be designed to comply with different regulations depending on their intended environment. (a) is strong enough to support the equipment and workers who may use it, (b) is at least 600 millimetres wide, (c) is wide enough to ensure the safe movement of equipment and workers, and. This web page provides the OSHA standard number, title, and subpart for the requirements of stairways and ladders in construction. 25 and in IBC chapter 10 means of egress. Railings for industrial spiral staircases have their own specific set of OSHA rules. We hope you find this information helpful. Ramps are covered under OSHA guidelines 1926. This is often in compliance with legal safety requirements to have two independent fire escape. Summary:The International Residential Code (IRC) lays out the requirements for residential staircases. ) (f) Stairway platforms shall be no less than the width of. A ship's ladder must have toe clearance of 7 inches unless the nature of the work requires a lesser clearance; 4. 75 inches each. Handrail height of alternating tread devices and ships ladders, measured above tread nosings, shall be uniform, not less than 30 inches (762 mm) and not more. Stairways used for required fire egress shall comply with the NEPA 101 Life Safety Code and all other relevant codes. Systems mounted before 01/17/2017 must be 30 inches or higher. 1060) are explained in this discussion. OSHA requirements for stairs used during construction apply to any stairs, fixed or temporary, that construction employees may use. Typical stairs that have. The exterior egress stair requirements are in place to ensure the public health and safety for exterior stairs used as a means of egress from commercial, residential, and industrial buildings. Are you overwhelmed when it comes to OSHA compliance for fixed or temporary stairs on your job site? There are extensive regulations for stair rails, riser height, platforms, landings, and so on; so many regulations, it can be difficult to know which product you need. Angled Riser 30° max. Our letters of interpretation do not create new or additional requirements but rather explain these requirements and how they apply to particular circumstances. Alliance ProgramAlliances enable organizations committed toworkplace safety and health to collaborate with. 96 in wet conditions. 75 inches each. 7. 28 cubic yards. Occupational Safety and Health Administration 200 Constitution Ave NW Washington, DC 20210 1-800-321-OSHA 1-800-321-6742. Railings for industrial spiral staircases have their own specific set of OSHA rules. 28 and 1910. Section 1010 was extensively reorganized for the 2021 edition. 5” minimum. Subchapter 4. The stripe shall be a minimum of 2 inches (51 mm) wide to a maximum of 4 inches (102 mm. The maximum rise of each step is eight inches; the minimum rise is four inches. ErectaStep. The Agency’s interpretations explain these requirements and how they apply to particular circumstances, but they do not create additional employer obligations. An OSHA catwalk serviced by a stairway is a type of stair landing. 3-414) on proposed part 1910 subpart D (Walking and Working Surfaces) stated:. RE: OSHA req'mnts for stair loading. Stair Treads are common in residential, industrial, and architectural applications. OSHA requires a tread depth of 9. Occupational Safety and Health Administration 200 Constitution Ave NW Washington, DC 20210 1-800-321-OSHA 1-800-321-6742. Stair treads and risers shall meet the requirements of this section. In addition to cold stress, there are other winter weather related hazards that workers may be exposed to when performing tasks such as driving in the snow, removing snow from rooftops, and working near downed or damaged power lines. All nosings must measure 3/4 to 1 1/4 inches in length, with no more. Variations in riser height alternatively tread breadth wants not be over ¼-inch (0. 5″ tread and 9. MIGUEL FRANKLIN. A stair with a single riser or with two risers and a tread is permitted at locations not required to be accessible by Chapter 11 where the risers and treads comply with Section 1011. Stair treads can come in non-slip varieties, particularly in commercial or industrial locations. 23 defines the requirements for ladders. It is important to note, however, that while these codes apply in the majority of states in the U. Height is measured from the leading edge of the stair tread to the top surface of the handrail. "One stair rail system with hand rail on each open side" is required. Under this provision, a catwalk or runway must be at least 18 inches wide. OSHA Enforcement ; Annual Inspection Data ; Topics Back. 91 m) above the upper landing surface and is. For complete information, see the moved sections table in. 1926. 5, the minimum depth of the tread is 13 inches (330 mm) and not less than one handrail complying with Section 1014 is provided within 30 inches (762 mm) of the. The employer must ensure each safety net system meets the requirements in 29 CFR part 1926, subpart M. Stair treads are designed to offer protection in industrial facilities or outdoor sites where slippery conditions may be present. Section 6(b)(8) of the OSH Act requires that when an OSHA. Maximum 4-1/2 inch handrail projection into stairway width, on either side. OSHA requirements are set by statute, standards and regulations. Lack of B. Distance between the two stair railings as measured from the two closest edges. When inspecting the condition of stairways in your place of work, here are some items to watch out for. Stair Width: A minimum 22″ wide stair. Maximum 12′-7″ vertical height (rise) for a flight of stairs. 25 specifies its own criterion regarding Walking-Working Surfaces and Stairs, (including standard, spiral, ship, and alternating tread-type stairs). 1910. Tread width must be uniform. Learn more about the key components of. 25 (b) Compliant fall protection (guardrail system) Uniform riser heights and tread depths . 24f of their standards, it states, “All treads shall be reasonably slip-resistant and the nosings shall be of nonslip finish. The nosing on treads, believe it or not, has a code minimum and maximum of how far the nosing projects over the next stair. 5 "width below handrail height where handrail is on one side. Note that our enforcement. Handrails shall be at a uniformly height above walking surfaces, stair nosings, additionally ramp flat. website at or contact the OSHA Publications Office U. FAQs Stair rails installed before Jan. Stringers may project 1 1/2 inches. Anchorage. 493S Safety Insert Tread. Stair Width: A minimum 22″ wide stair. - stair codes vary; this quote is from he CBC 1003. Ceilings of dwelling units and sleeping units within residential occupancies in accordance with Section 1207. 25 inches. 7. 25(b)(5)(ii) and shown in figure D-7 is. 8-1977, Scaffolding, updating its safety requirements for the use of scaffolds in construction and demolition operations. Created with funding by: A U. The below table simply depicts these factors: OSHA IBC Risers & Tread 8″ open riser a 9. Skip to content. (d) The narrowest width in a stairway or landing serving a stairway shall determine the units of width for the. Some spiral staircase systems require spacers between treads. B - Handrail height: between 86. This letter constitutes OSHA's interpretation of the requirements discussed. A minimum 7 inches tread width, measured at the leading tread edge. where the treads are narrower of not less than 10 inches and minimum depth of any tread shall not be less than 6 inches. A minimum tread depth of 22cm or 8. Occupational Safety and Health Administra-tion (OSHA) style stairs are included, along with recommendations to determine ap-propriate core opening dimensions, and the guide can be used as an aid in determining code requirements related to typical stair and rail layouts. More similar in landing requirements, both OSHA and IBC require landings at the top and bottom of the stairs. REDD Team will help you meet OSHA standards for stairs and put fall-protection safeguards in place at your job sites. Are all treads reasonably slip-resistant with the front protruding edge of the tread. The riser height shall be not more than 7 3 / 4 inches (196 mm). If a stairway accesses the catwalk, the width requirements depend on the width of the stairway that serves it. Section 1011, Stairways, addresses the code requirements for all stairways and section 1027 addresses the exterior stairs code. In the U. 23(e)(1) 1910. The section of a stairway leading from. Rise and tread measurements are dictated by the angle of the stairway rise. Minimum 6′-8″ headroom height clearance for stairway. Because interpreta-tions and enforcement policy may change over time, you should consult current OSHA administrative interpretations and decisions by the Occupational Safety and Health Review Commission and the Courts for additional guidance on OSHA compliance requirements. • Handrails and Stair rails: A. This is in response to your memorandum of March 18, 1975, concerning 1910. Recordkeeping Requirements and Forms ; Safety and Health Programs ; Support After a Loss ; Whistleblower Protections ;. - to “one stair rail system with handrail on each open side”. This type of metal grating and stair treads feature a safety flooring surface with hundreds of. 4 Height. OSHA Section 1910. 25 (b) (2) Vertical clearance above any stair tread to any overhead obstruction is at least 6 feet, 8 inches (203 cm), as measured from the leading edge of the tread. Stair Code Example – Source BOCA 2001 stair construction code details: Stair riser heights shall be 7 inches (178 mm) maximum and 4 inches (102 mm) minimum. Call Us Today: 856. Stringers may project 1 1/2 inches. Aluminum Handrail and Guard Railing: Aluminum handrail and guard railing shall meet the requirements of Section 05521 Aluminum Handrails and Railings. 5 mm) between two stories, including the nosing at the level of floors and landings. OSHA says exposure to these types of hazards pose a. Chapter 10 of this code is duplicated in Chapter 10 of the International Fire Code ®; however, the International Fire Code contains one additional section on maintenance of the means of egress system in existing buildings. Before you start building, you must first learn the parts of deck stairs. 25(f) beneath: 1910. Stair riser heights shall be 7 inches (178 mm) maximum and 4 inches (102 mm) minimum. Also, a commenter (Docket S-041, Ex. 5 metres apart measured verticallyThe PHP Guardrail System ensures OSHA compliance and protects anyone working within six feet of a roof’s edge or elevations over 48 inches. on the front five inches of the span at the center. Occupational Safety and Health Administration 200 Constitution Ave NW Washington, DC 20210 1-800-321-OSHA 1-800-321-6742. In Group F, H and S occupancies, other than areas of parking structures accessible to the public, openings. 5 Stair treads. OSHA Enforcement ; Annual Inspection Data ; Topics Back. 3 times the maximum intended load. Note that our enforcement. 121 (b) (1) Stairways shall conform to the minimum dimensions of Figure F-1; Spiral Stairway - Minimum Dimensions. 5 Point A. Handrails must not project into the stairway more than 4 ½ inches—so with one handrail, the stairway can’t be less than 31 ½ inches wide, as measured at or below the rail, and with two handrails, the. This section covers the general requirements for stairways, including standard, spiral, ship, and alternating tread-type stairs, such as the height, depth, width, and clearance of each tread. For the application of Table 402. Private stairways serving an occupant load of less than 10 may be 30 inches wide. The treads are manufactured with heat-treated, corrosion-resistant aluminum substrate and a nearly diamond-hard aluminum oxide filler. What if the doorway described in §1910. 25” in any stairway; and stairways must be installed between 30 and 50 degrees from the horizontal. The stair tread water code is defined in OSHA sections 1910. The IBC contains requirements for exit stairway enclosures that address fire-resistance and smoke protection, stairways and handrails, signs, and other features. 1910. Standard 36" wide treads, 40" overall stair width. 2. The employer must ensure each safety net system meets the requirements in 29 CFR part 1926, subpart M. "One stair rail system with hand rail on each open side" is required. The. This section covers the general requirements for stairways, including standard, spiral, ship, and alternating tread-type stairs, such as the height, depth, width, and clearance of each tread. Spiral stairs must meet the vertical clearance requirements inLoad-capacity of 1,000 lbs. Spiral stairs shall have a minimum tread depth of 7. However, the ICC notes that if the steps do not have nosings, and the steps have solid risers, not open risers, the minimum tread depth is 11 inches. 5. The 493S is a premium quality, fully recessed aluminium safety tread, to highlight the leading edge of the step or add safe grip to ramps and flat surfaces. 5″ tread. gov OR-OSH 03/20 S-04 HANDRAILS What are they? Handrails are rails that provide a handhold for support. If a stairway accesses the catwalk, the width requirements depend on the width of the stairway that serves it. Let’s take a closer look. 24 cm). 5. The vertical sections of stairs, called stair risers, must be between 4 and 7 inches tall to be compliant with ADA guidelines. Slip resistant walkways, planks and stair-treads. 3-stringer design with treads welded to the stringers. §1626. 5, the minimum depth of the tread is 13 inches (330 mm) and not less than one handrail complying with Section 1014 is provided within 30 inches (762 mm) of the. SPS 321. This letter constitutes OSHA's interpretation of the requirements discussed. 2. 17, 2017, must be at least 30 inches from the leading edge of the stair tread to the top surface of the top rail, while those installed on or after Jan. Plastic composite exterior deck boards, stair treads, guards and handrails shall comply with the requirements of ASTM D7032 and the requirements of this section. Weight-Bearing. 5” . Topics. OSHA requirements are set by statute, standards and regulations. Of course, you should also check the OSHA codes as well as local building codes when designing a ship ladder. : Deck-Stair Layout 101 – Deck stair layout is simple, right? Probably right, unless it’s the first time you’ve tackled the task. 29(f)(1)(iii) The federal OSHA requirements are similar to those of California's State OSHA program requirements except that California has enacted a more stringent provision by requiring the stairway width to be not less that 24 inches wide, versus 1926. That’s why we’ve compiled this guide to OSHA stair requirements. Requirements For Stairways. 25 inches and 1 inch, respectively. Railings and toeboards must meet the specifications laid out in Article 16 in the California Code of Regulations. but safety is the main. Since that time, OSHA has received many questions and requests for interpretation of the requirements for handrails and stair rail systems. Spiral stairs must meet the vertical clearance requirements in paragraph (d) (3) of this section. The minimum load capacity must be at least 100 pounds per square foot, with a minimum tread center concentrated load of at least 300 pounds. Useful across all industries, this information will help you determine what is needed to ensure the safety of your employees and the product. The stair tread double-nose photograph above, provided by the InspectApedia. 1 -2007, Safety Requirements for Workplace Walking/Working Surfaces and Their Access; Workplace, Floor, Wall and Roof Openings; Stairs and Guardrails Systems, the standard now states in Section 6. There are also section codes in place for standard stair tread dimensions. Portable ladders are those that can be readily moved or carried (OSHA 2016). A (half-tread width) B. OSHA requires that stairs be designed for 5 times the anticipated live load. 25 Portable wood ladders. 505. The employer must ensure: (1) Handrails, stair rail systems, and guardrail systems are provided in accordance with § 1910. Each type of safety grating walkways, and planks. IRC Stair Nosing Requirements. The step tread is the part of the stairs that you walk on. (See 81 FR 82611-12). For projects falling under the IRC, the minimum tread depth is 10 inches, plus a required nosing of at least ¾ inch. 75 inches, and can not vary more than 3/8 of an inch. A stair rail may serve as a handrail only when the top surface of the top rail is between 36 and 38 inches from the. (7) Where the rise would exceed 9 1/2 inches and the run would be less than 8 inches, portable, fixed, or ships ladders shall be used. 1910. and a vertical clearance above any stair tread to any overhead obstruction of at least 6 feet 8 inches. Minimum width of 22”. A stair with a single riser or with two risers and a tread is permitted at locations not required to be accessible by Chapter 11 where the risers and treads comply with Section 1011. What if the doorway described in §1910. The tread "depth" is measured from the back of one tread to the back of the next. Handrail Required On One Side If 4 Or More Risers. 5 Stair treads and risers. 21 and 1910. OSHA req'mnts for stair loading. 11 +. 754. Maximum 7 inch stair riser height and minimum 4 inch stair riser height. 1052(c)(7) 1926. Featuring Lathams' Supagrit silicon carbide mineral fill. 3 METAL. 1910. Work Zone Traffic Safety. Minimum 6′-8″ headroom height clearance for stairway. 36 inches. S. 1910. 28; (2) Vertical clearance above any stair tread to any overhead obstruction is at least 6 feet, 8 inches (203 cm), as measured from the leading edge of the tread. 28 standard, which outlines all of the duties required to have adequate fall protection in place for workers at height. Both OSHA and IBC require landings at the top and bottom of the stairs, although IBC landings are. A handrail every 60" of horizontal distance at any place along the stairs. OSHA requirements are set by statute, standards, and regulations. OSHA requires railings on open sides of stairwells and a handrail on at least on the side, preferably the right side descending at 42″ high. The topic of handrails that we are discussing today falls under the category of safety. Visual contrast on tread nosings or the leading edges of treads is helpful for people with low vision but not required by the ADA Standards. Since that time, OSHA has received many questions and requests for interpretation of the requirements for handrails and stair rail systems. Minimum single stair railing distance. Risers for OSHA stairs are allowed to. The following requirements apply to all stairways as indicated: ( 1) Stairways having four or more risers or rising more than 30 inches (76 cm), whichever is less, shall be equipped with: ( ii) One stairrail system along each unprotected side or edge. A handrail may terminate at an intermediate wall provided the lower end of the upper rail is returned to the wall or provided with a flared end, the horizontal offset between the 2 rails is no more than 12 inches measured from the center of the rails, and both the upper and lower rails can be reached from the same tread without taking a step. Our interpretation letters explain these requirements and. In any stairway, the tread depth and nosing depth have a maximum permitted variation of ⅜ inch. Risers for OSHA stairs are allowed to be open. 28 (b) (11) (ii) Table D-2 contains a printing error, which OSHA will correct in a published notice. Plastic ladders: ANSI A14. 5, the minimum depth of the tread is 13 inches (330 mm) and not less than one handrail complying with Section 1014 is provided within 30 inches (762 mm) of the.