|
How to Use an Extension Ladder Properly
A Practical Guide for Safer Jobsites Falls from ladders remain one of the leading causes of injury in construction. The good news: most ladder incidents are preventable with proper setup and use. If you’re using an extension ladder on the jobsite, following the correct angle and setup procedures is critical. 1. Follow the 4:1 Rule (The Correct Ladder Angle) The 4:1 rule ensures your extension ladder is positioned at a safe working angle. What it means:
For every 4 feet of ladder height, the base should be placed 1 foot away from the wall. Example:
If the ladder touches the structure at 16 feet high: - 16 ÷ 4 = 4
- The base should be 4 feet away from the wall.
This creates an angle of approximately 75 degrees — the safest working position for stability. If the ladder is: - Too steep? it can tip backward.
- Too shallow? it can slide out at the base.
Want a quicker way to check whether you’re using the 4:1 rule properly? Watch a demonstration of the 4:1 rule here:
https://youtube.com/shorts/yaNYdvdgMIU?feature=share 2. Inspect the Ladder Before Use Before climbing, always inspect: - Rails for cracks or bends
- Rungs for damage or looseness
- Rope and pulley system (if applicable)
- Feet for proper traction
- Locks (dogs) fully engaged
Never use a damaged ladder. Tag it and remove it from use. 3. Set the Ladder on Stable Ground - Place on firm, level ground.
- Use ladder levelers or a stable base if needed like the Stop-A-Ladder.
- Secure the base if there’s any risk of movement.
- Tie off the top whenever possible.
Do not set ladders on: - Ice or mud
- Loose gravel
- Boxes, pallets, or unstable surfaces
4. Extend the Ladder Properly When accessing a roof or upper level: - Extend the ladder at least 3 feet above the landing surface.
- Secure it at the top to prevent shifting.
- Face the ladder while climbing.
This provides a stable handhold when stepping on or off the roof. 5. Climb Safely Always maintain: - Three points of contact (two hands and one foot, or two feet and one hand)
- Your belt buckle between the rails
- Tools in a belt or hoisted separately (not in your hands)
Never: - Lean outside the rails
- Stand on the top three rungs
- Overreach instead of climbing down and repositioning
6. Choose the Right Ladder for the Job Ensure the ladder: - Is rated for your weight plus tools (check duty rating)
- Is long enough to reach safely without standing on top rungs
- Is designed for the type of work being performed
Using the wrong ladder increases risk significantly. Quick Extension Ladder Safety Checklist Before climbing, ask: - Is it the right ladder for the job?
- Is it inspected and undamaged?
- Is it set at the 4:1 angle?
- Is it secure at the top and bottom?
- Am I maintaining three points of contact?
If any answer is “no,” stop and correct it. Why It Matters A properly positioned ladder dramatically reduces the risk of falls. The 4:1 rule takes seconds to measure but can prevent serious injuries, lost time, and costly claims. Ladder safety isn’t complicated when you create consistent safety habits.
|