Despite the increased use of scissor lifts and boom lifts to reach high areas, there are times when extension ladders are needed to reach rooftops and other elevated work areas. While it may seem quick and easy to set up an extension ladder, these ladders must be set up and used safely on jobsites.
Here are some basic safety rules to follow when using extension ladders.
- Inspect the extension ladder prior to each use to identify damage to the slide rails, anti-slip feet, rope and pulley, rungs, and rung locks. A damaged extension ladder must be taken out of service immediately and disposed of in most instances.
- Select an extension ladder that is the right size and height for the task and that is the proper duty rating. You should not need to stand on the top two rungs of the extension ladder to reach the work area. Use an extension ladder with a load capacity of at least four times your maximum intended load – and note that extra-heavy-duty-type ladders should be able to support at least 3.3 times your maximum intended load.
- Make sure the extension ladder is set on a stable and level surface, and that the ladder's anti-skid feet are properly set. The top of the ladder must extend 36 inches above the landing.
- Look for overhead obstructions and power lines, and set the ladder at least 10 feet away from all overhead obstructions.
- Do not place the ladder in front of a closed door, in a doorway, or in a busy walkway.
- Maintain three-point contact when climbing up and down the extension ladder: two hands and one foot or two feet and one hand.
- Always face the ladder when climbing up and down it.
- Keep the extension ladder's rungs free of debris, grease, mud, ice, and snow.
- Do not overreach when working on an extension ladder. Keep your belt buckle between the extension ladder's side rails.
Remember: The risk of having accidents with extension ladders increases when you do not take the time to inspect and properly set up the ladder. Falls from extension ladders can result in significant or permanent injury or death. Be safe and take time to use an extension ladder safely to help reduce accidents.
Sources:
Occupational Safety and Health Administration. Ladder Safety Dos and Don'ts. https://osha4you.com/ladders/ladder-safety-dos-and-donts/. Accessed May 19, 2026.
Occupational Safety and Health Administration. Reducing Falls in Construction: Safe Use of Extension Ladders. https://www.osha.gov/sites/default/files/publications/OSHA3660.pdf. Accessed May 19, 2026.
5-R-1355