Stair safety before dispatch: 8 cited rules to check

Before dispatch, confirm riser uniformity, rail height, opening width, and slippery conditions on stairs, plus a working alarm and emergency plan.

• Riser uniformity: Riser height and tread depth shall be uniform within each flight of stairs, including any foundation structure used as one or more treads, according to Legal Information Institute.
• Riser tolerance: The allowable variation is 1/4-inch (0.6 cm) in any stairway system, according to Legal Information Institute.
• Opening limits: Other structural members, when used, shall be installed such that there are no openings in the stairrail system that are more than 19 inches (48 cm) wide, according to Legal Information Institute.
• Temporary treads: Treads for temporary service shall be made of wood or other solid material, and shall be installed the full width and depth of the stair, according to Legal Information Institute.

Dispatchers and team leads hold the final gate before a technician steps onto a multi-story site. The Oregon Occupational Safety and Health Division specifies that a written plan must be in the work area and available to employees on request, except that an employer with 10 or fewer employees in a workplace may use a verbal plan, according to Oregon Occupational Safety and Health Division.

Beyond documentation, the physical environment must support safe egress. The Oregon Occupational Safety and Health Division requires that there must be a properly working employee alarm system, according to Oregon Occupational Safety and Health Division. A functional alarm system is a critical component of the site’s safety infrastructure, and its presence should be verified as part of your pre-dispatch checklist.

Integrating these checks into your dispatch workflow ensures that you are not just sending a technician to a job, but to a site that meets baseline safety conditions. The dispatch board is where these decisions are made, and the information you gather before sending a technician should include confirmation of these specific safety elements. Our Field Service Work Order Checklist for Dispatch Handoffs shows where to record them.

Verify riser uniformity before dispatch. The Legal Information Institute states that riser height and tread depth shall be uniform within each flight of stairs, including any foundation structure used as one or more treads of the stairs, according to Legal Information Institute. The same source specifies a tolerance of 1/4-inch (0.6 cm) in any stairway system, according to Legal Information Institute. Check this variance on site to confirm the stairway meets the uniformity requirement.

The California Department of Industrial Relations requires a top rail not less than 42 inches or more than 45 inches in height measured from the upper surface of the top rail to the floor, platform, runway or ramp, according to California Department of Industrial Relations.

Inspect structural openings in the rail system. The Legal Information Institute mandates that other structural members, when used, shall be installed such that there are no openings in the stairrail system that are more than 19 inches (48 cm) wide, according to Legal Information Institute. The California Department of Industrial Relations similarly states that other intermediate members (such as solid panels, or equivalent members) shall be installed such that there are no openings that are more than 19 inches (.5 m) wide, according to California Department of Industrial Relations.

Test rail deflection under load. The California Department of Industrial Relations specifies that when the 200 pound test load is applied in a downward direction, the top edge of the guardrail shall not deflect to a height less than 39 inches above the walking/working level, according to California Department of Industrial Relations.

Use these figures to verify site conditions. If any measurement fails, halt dispatch and document the hazard.

The following table lists the 8 specific stair and handrail requirements by publisher, providing exact values for your pre-dispatch inspection.

A dispatcher is preparing a visit to a multi-story building and asks the site contact to measure the top rail from its upper surface to the floor. The contact reports 40 inches. The California range is not less than 42 inches or more than 45 inches, so 40 inches falls short. The dispatcher holds the dispatch, records the measurement in the job notes, and asks the site to correct the rail or offer a different route. If the contact had reported 45 inches, the reading would sit within the range and the dispatcher would move on to the next check, such as opening width. These figures are illustrative round numbers, not a real site.

Before a technician steps onto a multi-story site, the dispatcher must verify that the stairwell does not present immediate physical threats. Two specific hazards require direct attention: projection risks at rail ends and slippery surfaces on treads. These conditions must be resolved before the stairway is used to reach other levels.

According to Legal Information Institute, the ends of stairrail systems and handrails shall be constructed so as not to constitute a projection hazard. This rule applies to the physical termination points of the railings. A dispatcher should ask the on-site contact to confirm that rail ends are rounded, capped, or otherwise finished so they do not protrude into the walking path. Sharp or jagged ends at the top or bottom of a flight can catch clothing or tools, creating a tripping or snagging risk for a technician carrying equipment. The construction must prevent the rail end from acting as a hook or barrier. The dispatcher should note this deficiency in the job notes and delay dispatch until the hazard is mitigated or the route is changed.

Slippery conditions on stairways shall be eliminated before the stairways are used to reach other levels, according to Legal Information Institute. This requirement covers any surface condition that reduces friction, such as standing water, oil, dust, or loose debris. A dispatcher should request a photo or verbal confirmation that treads are dry and clear. The elimination of slippery conditions is a prerequisite for use, not a suggestion. If the surface cannot be cleaned or dried before the technician arrives, the dispatcher must reschedule the job or assign a different access route. Do not send a technician to a stairway where slippery conditions remain unaddressed.

When space constraints force a permanent stairway to be installed at an angle above 50 degrees, the structure is commonly called an inclined or ship's ladder. According to the Washington State Legislature, such an installation must have treads, open risers and handrails on both sides. This requirement applies specifically to permanent stairways built at that steep angle due to space limitations. Dispatchers should verify if a site uses this type of access before sending a team to a multi-story building.

For temporary service stairways, material and installation standards differ. According to the Legal Information Institute, treads for temporary service shall be made of wood or other solid material. These treads must be installed the full width and depth of the stair. This rule ensures the temporary structure supports the weight of technicians and equipment across the entire opening.

When checking a site, distinguish between permanent inclined ladders and temporary setups. Permanent inclined ladders require the specific tread, riser, and dual handrail configuration noted by the Washington State Legislature. Temporary treads, as defined by the Legal Information Institute, rely on solid wood or equivalent material covering the full stair dimensions. If a job site uses a temporary stairway, confirm the treads are solid and span the full width and depth. If the site uses a permanent inclined ladder, check for the required treads, open risers, and handrails on both sides.

Use these specifications to inspect the access route before dispatch. If the temporary treads are not solid wood or other solid material, or if they do not cover the full width and depth, the stairway does not meet the standard described by the Legal Information Institute. If the permanent inclined ladder lacks treads, open risers, or handrails on both sides, it does not meet the standard described by the Washington State Legislature. If the job also needs a portable ladder, see Portable ladder safety: 9 reference points to check.

When verifying railing integrity for multi-story access, the material composition dictates specific structural standards. For wood-based railings, the California Department of Industrial Relations requires that "Selected lumber" be used, ensuring the material is free from damage that affects its strength, as stated in the California Code of Regulations, Title 8, Section 1620. Design and Construction of Railings according to California Department of Industrial Relations.

Post spacing is a critical dimension for wood railing systems. The regulations specify that wood posts shall be not less than 2 inches by 4 inches in cross section, spaced at 8-foot or closer intervals, according to California Department of Industrial Relations.

The top rail itself must meet specific size and finish requirements. Wood top railings shall be smooth and of 2-inch by 4-inch or larger material, according to California Department of Industrial Relations.

Inspect the cross-section of visible wood posts to confirm they meet the 2-inch by 4-inch minimum. Verify that the spacing between posts does not exceed 8 feet. Check the top rail for smoothness and confirm it is at least 2 inches by 4 inches. These checks align with the requirements for railings constructed of wood as defined by the California Department of Industrial Relations.

Open your next multi-story job and add one line to the job notes asking the site contact to confirm rail end condition, dry treads, and top rail height before the technician leaves. If the job has no priority yet, set one with Set a job priority before dispatch: 3 fields.

What is the maximum width for openings in a stairrail system?

The maximum is 19 inches (48 cm). According to Legal Information Institute, other structural members in a stairrail system must be installed so that there are no openings more than 19 inches (48 cm) wide.

How high must a top rail be measured from the walking surface?

A top rail must be not less than 42 inches or more than 45 inches high. According to California Department of Industrial Relations, this measurement is taken from the upper surface of the top rail to the floor, platform, runway, or ramp.

What material must temporary service treads be made of?

They must be made of wood or other solid material. According to Legal Information Institute, treads for temporary service must be made of wood or other solid material.

When must a platform be provided where a door opens onto a stairway?

A platform must be provided where doors or gates open directly on a stairway. According to Washington State Legislature, the swing of the door must not reduce the effective width of the platform to less than 20 inches (51 cm).

What are the minimum cross-section dimensions for wood posts in railings?

Wood posts must be not less than 2 inches by 4 inches in cross section. According to California Department of Industrial Relations, these posts must be spaced at 8-foot or closer intervals.