Unprotected Extension Ladders: OSHA Regulations, Guidelines and Solutions
Roofers and maintenance crews rely on portable equipment to reach elevated work areas on commercial buildings. Extension ladders are one of the most common ways to access these spaces. However, when left unsecured or improperly positioned, they become one of the biggest fall hazards on any elevated job site.
The Occupational Safety and Health Administration (OSHA) sets specific requirements for ladder placement, securing and stability. Violating them puts workers at direct risk. This article breaks down where these setups commonly fall short of those standards. It also outlines the guidelines and equipment that keep workers protected every time they climb.
What are Unprotected Extension Ladders?
Unprotected extension ladders are portable ladders used for roof access without the securing, extension height or stabilization OSHA requires. These conditions expose workers at the point where a fall is most likely. The greatest risk comes during the transition between the ladder and the roof edge, when workers step onto the roof.
These hazards show up on a job site in several common ways:
- Side rails that do not extend far enough above the landing surface for a safe step-off
- A ladder top that is not tied off or secured against shifting or slipping
- A base resting on an uneven or slippery surface without slip-resistant feet
- No grab device or handhold provided when full extension above the landing is not possible
Falls remain the leading cause of death among roofers, according to OSHA safety guidance. Working six feet or higher above a lower level significantly raises that risk. Every gap listed above adds danger at the moment a worker steps onto the roof. Spotting these gaps early keeps a routine climb from turning into a serious injury.
How Unprotected Extension Ladders Fail OSHA 1918.24(c)
Extension ladders often become a fall risk long before anyone notices a problem. Crews rely on them daily for routine roof access. Many get positioned quickly without checking length, securing or base stability. These shortcuts are among the common causes of ladder falls seen across job sites. Each one traces back to a specific requirement under OSHA 1918.24(c).
The list below outlines the most common ways crews violate this code:
- Insufficient extension height. The ladder’s side rails stop short of the three-foot minimum above the landing, leaving workers without a secure handhold as they step onto the roof.
- No positive securing. The top of the ladder is not tied off, clamped or otherwise held in place, allowing it to shift or spin under a worker's weight.
- Unsecured base. The ladder rests on an uneven or unstable surface instead of a level, firm surface.
- Missing slip resistance. The base lacks slip-resistant feet or other means of securing the ladder against sliding.
These violations rarely occur in isolation. A ladder that is not secured at the top often lacks a stable base as well, and the two failures compound the risk. Extension ladders left in this condition put workers at their most vulnerable point, the climb on and off the roof, where a single misstep can result in a serious fall.
OSHA Guidelines for Safe Extension Ladder Use
OSHA has specific requirements under 29 CFR 1918.24(c) that govern how an extension ladder must be set up before a worker climbs it. Building and facility managers can visit our OSHA compliance FAQ for more context on how these requirements apply on site.
The following are the key requirements crews must meet to satisfy this safety standard:
- Extension Height: Side rails must extend at least three feet above the landing surface to give workers a stable handhold during mount and dismount.
- Positive Securing: The ladder must be tied off, clamped or otherwise held against shifting or slipping while in use.
- Base Stability: The ladder must rest on a level, firm surface, as required under 1918.24(j)(1).
- Slip Resistance: The base must have slip-resistant feet or be positively secured, as required under 1918.24(j)(2).
OSHA extends these requirements under 29 CFR 1926.1053 for cases where full extension above the landing is not possible:
- Rigid Top Support: 1926.1053(b)(1) requires the top of the ladder to be secured to a rigid support that will not deflect under load.
- Grab Device: The same standard requires a grab device, such as a grab rail, to assist workers mounting and dismounting when the extension height cannot be met.
- Slippery Surface Protection: 1926.1053(b)(7) requires ladders on slippery surfaces to be secured or fitted with slip-resistant feet, and notes that feet alone do not replace proper securing.
How Safety Rail Source® Addresses Unprotected Extension Ladders
Safety Rail Source® designs ladder safety products that meet the OSHA regulations outlined above, giving crews a reliable way to close the gaps that lead to falls. Each product targets a specific point of failure, from an unsecured top to an unstable base:
- Ladder Safety-Step-Straight™ 2.0 is a clamp-on attachment that prevents the ladder from spinning at the top. It uses a dual clamping safety lock system that keeps the ladder stable as workers step onto the landing.
- Ladder Safety-Docks™ are a permanent attachment for flat, sloped or parapet roof edges. They give workers tie-off points and safety handles for a secure hold when mounting or dismounting the ladder.
- Ladder Safety-Legs™ are a base attachment that allows the left and right legs to adjust independently. They keep the ladder steady on uneven terrain and reduces the risk of the base shifting side to side.
- Ladder Safety-Arms™ attach to the rungs of the ladder to add stability during use. It also protects gutters and flashing from damage caused by the ladder resting directly against them.
These four products address the most common extension ladder violations, but they represent only part of what SRS offers. Building and facility managers can browse our full product catalog to find additional solutions for roof edges, hatches, skylights and other elevated work areas.