For commercial and industrial facilities, providing safe, accessible routes for employees, visitors, and contractors requires careful planning. Facility managers, EHS professionals, safety managers, contractors, and other construction professionals must consider accessibility requirements alongside the safety and functionality of the surrounding work environment.
The Americans with Disabilities Act (ADA) establishes accessibility requirements that apply to ramps on accessible routes. Understanding commercial ADA ramp requirements—including slope, rise, landings, handrails, width, edge protection, and surface conditions—is an important part of planning an accessible facility.
The use of building accessibility ramps was once primarily confined to rehabilitation centers. The passage of Section 504 of the Rehabilitation Act of 1973 and the landmark Americans with Disabilities Act in 1990 helped expand accessibility requirements throughout commercial and public facilities.
Quick Answer: ADA ramp runs generally require a running slope no steeper than 1:12, a minimum 36-inch clear width, level landings at the top and bottom of each run, and a maximum rise of 30 inches per ramp run. Handrails are generally required when a ramp run has a rise greater than 6 inches. Specific requirements and exceptions can vary depending on the facility and application.
What Are the ADA Ramp Slope Requirements for Commercial Facilities?
ADA ramp slope requirements are critical in commercial ramp design. A ramp that is too steep can create accessibility and safety concerns for people using wheelchairs, scooters, walkers, or other mobility aids.
The rise is the vertical height that needs to be overcome—for example, the distance between ground level and an elevated entrance or platform. The slope is the angle of the ramp, measured as a ratio of the rise to the horizontal distance of the ramp, or “run.”
For ramps on accessible routes:
- Ramp runs generally require a maximum running slope of 1:12, meaning 1 inch of rise for every 12 inches of ramp run.
- The cross slope of a ramp run generally cannot be steeper than 1:48.
- In certain existing sites, buildings, and facilities where space limitations make a 1:12 slope impractical, limited exceptions may permit steeper slopes. The applicable ADA requirements should be reviewed before relying on an exception.
For commercial and industrial facilities, ramp configuration should also account for the available space, surrounding equipment, pedestrian traffic, access points, and how employees and visitors use the area.
What Are the ADA Landing Requirements for Commercial Ramps?
According to ADA ramp specifications, level landings are required at the top and bottom of each ramp run. Landings provide space for users to stop, maneuver, and change direction safely.
Key ADA ramp landing requirements include:
• A single ramp run may have a maximum rise of 30 inches.
• Landings must be at least as wide as the widest ramp run leading to them.
• Landings generally require a minimum clear length of 60 inches.
• When a ramp changes direction between runs, the landing generally must provide at least 60 inches by 60 inches of clear space.
• Landings exposed to wet conditions must be designed to prevent water accumulation.
In industrial and commercial environments, adequate landing space can be particularly important around entrances, work areas, platforms, and other locations where pedestrian traffic or operational activity may affect access.
When Are Handrails and Edge Protection Required on ADA Ramps?
Not every person using an accessible ramp will use a wheelchair. Ramp users may also use scooters, walkers, canes, or other mobility aids, making properly designed handrails and edge protection important components of accessible ramp systems.
Under the current ADA Standards, ramp runs with a rise greater than 6 inches generally require handrails on both sides, subject to applicable exceptions. ADA requirements also address handrail height, continuity, gripping surfaces, extensions, and clearance.
Edge protection is also generally required along each side of ramp runs and ramp landings, with specific exceptions established by the ADA Standards. Edge protection can be provided through compliant curbs, barriers, or extended floor or ground surfaces, depending on the design.
For facility managers and safety professionals, ramp handrails and edge protection should also be considered in relation to surrounding walking-working surfaces, elevated areas, and other facility hazards.
What Is the Minimum Width for a Commercial ADA Ramp?
ADA-compliant ramps generally require a minimum clear width of 36 inches. When handrails are provided, the required clear width is measured between the handrails. Certain employee work-area conditions have specific exceptions under the ADA Standards.
Ramp and landing surfaces must also meet applicable ADA requirements for floor and ground surfaces. The U.S. Access Board describes these surfaces as firm, stable, and slip resistant. Landings subject to wet conditions must be designed to prevent water accumulation.
For commercial and industrial facilities, designers should also consider how the ramp will interact with normal facility operations, including employee traffic, equipment, material movement, entrances, and surrounding walking-working surfaces.
Commercial Access Ramp Solutions for Industrial Facilities
It may not have been all the rage in the 1950s, but today, accessibility solutions for businesses are not only required by law, they promote an inclusive environment that welcomes all customers and employees.
ADA ramp compliance requires careful attention to slope, width, landings, handrails, and surface safety. Following these guidelines and installing modular commercial access ramps will enable businesses to provide safe and accessible entry.
If you are responsible for facilities management or ADA compliance, contact Lighthouse Safety for compliant safety solutions. We will discuss your concerns about regulations and what it will take for you to comply. Our services encompass everything you need, from design, engineering, and fabrication to installation, training, inspections, and other support.
Lighthouse Safety
Getting you home.
