The US Bureau of Labor Statistics recorded 844 fatal work injuries from falls, slips and trips in 2024, out of 5,070 fatal work injuries in total (BLS National Census of Fatal Occupational Injuries in 2024). The release does not break out ladders on their own, so treat that as the wider picture, not a ladder count. It is still a good reason to stop saying "it is only a minute" before you grab the nearest ladder, skip the check and lean it at whatever angle looks right.
This post gives you 15 ladder safety tips in 3 sets of 5: choose and inspect, set up, then climb and work. Each rule comes with one reason and a link to OSHA or NIOSH, and each set has an Lựa chọn của chúng tôi. It is written for general industry, so it follows 29 1910.23 CFR. Construction work falls under a separate OSHA ladder standard (29 1926.1053 CFR), so check which one covers your site.
Set 1: Choose and inspect (5 rules)
A ladder that is wrong for the job, or already damaged, cannot be made safe by good technique. Settle this before you climb.
- Pick the right ladder for the job and the height. Use a ladder only for what it was designed for (1910.23 (b) (8)). NIOSH adds that a ladder that is too short leads to overreaching and instability (NIOSH).
- Check the load rating. A ladder must not be loaded beyond its maximum intended load, and that includes you, your tools and your materials (1910.23 (c) (3)).
- Inspect it before each shift. Look for visible defects that could injure you, before the first use in every work shift and more often if needed (1910.23 (b) (9)). NIOSH lists missing rungs, bolts, cleats and screws, and loose parts.
- Tag a damaged ladder and take it out of service. It is marked "Dangerous: Do Not Use" or similar and stays out until it is repaired or replaced (1910.23 (b) (10)).
- Lock a stepladder fully open. A stepladder needs a spreader or locking device that holds the front and back sections open while you use it (1910.23 (c) (2)).
Our pick: rule 4. Checking the ladder is the easy half. The harder half is a tag and a gap in the store room, so that the next person does not borrow it.
Set 2: Set it up (5 rules)
NIOSH says that in about 40% of cases the leading cause of ladder-related injuries is the ladder sliding out at the base because of an incorrect setup angle (NIOSH). Most of the work is done before your foot touches a rung.
- Start on firm, level ground. Use ladders only on stable and level surfaces unless they are secured to prevent accidental displacement, and never put one on boxes, barrels or other unstable bases to gain height (1910.23(c)(4) and (c)(13)).
- Get the angle right. For an extension or straight ladder, OSHA's guidance is to place the base a quarter of the ladder's working length away from the wall (OSHA QuickCard). That is often called the "4 to 1 rule", and it gives the angle of about 75 degrees that NIOSH recommends. This is good practice from OSHA and NIOSH guidance, not wording in 1910.23.
- Extend 3 feet above the landing. A portable ladder used to reach an upper landing has side rails that extend at least 3 feet (0.9 m) above it (1910.23 (c) (11)).
- Secure the top, or the base. Both side rails of a non-self-supporting ladder must be supported at the top, unless it has a single support attachment, and ladders on slippery surfaces must be secured and stabilised (1910.23(c)(9) and (c)(10)).
- Keep clear of power lines and traffic. Keep ladders at least 10 feet from power lines (OSHA 3660). A ladder where traffic can knock it, such as a doorway, is secured or barricaded (1910.23 (c) (7)).
Our pick: rule 7. It is easy to judge by eye and get wrong. A ladder set too steeply tips back, and one set too flat slides out. The NIOSH Ladder Safety app uses your phone to check the angle.
Set 3: Climb and work (5 rules)
Once you are on the ladder, the rules are about your body. They are simple, and they are the ones that get skipped when you are in a hurry.
- Face the ladder. Face it when climbing up or down (1910.23 (b) (11)).
- Keep three points of contact. The standard requires at least one hand on the ladder when climbing (1910.23 (b) (12)). OSHA's QuickCard describes the safer habit: two hands and a foot, or two feet and a hand (OSHA QuickCard).
- Carry nothing that could throw you off balance. No object or load that could make you lose balance and fall (1910.23 (b) (13)).
- Never use the top step or cap of a stepladder. They are not to be used as steps (1910.23 (c) (8)). NIOSH says never to step above the second highest step of a step ladder, or the fourth highest rung of an extension ladder.
- Do not overreach. Come down and move the ladder. No ladder may be moved, shifted or extended while someone is on it (1910.23 (c) (6)), and NIOSH names overreaching as a frequent cause of falls. OSHA 3660 says to keep your body inside the side rails.
Our pick: rule 14. The top step feels like the safest place to stand, because it is the highest point you can reach. That is exactly why it catches people out.
Common mistakes: the wrong versions
Here are five things people do that mirror the rules above, in the order they happen. No new rules here. They are the same ones, written the way they go wrong.
- A damaged ladder, "just this once". The wrong version of rules 3 and 4.
- Too steep, because the wall is close. The wrong version of rule 7.
- Carrying a load up in one hand. The wrong version of rules 12 and 13.
- Standing on the top step to save a trip. The wrong version of rule 14.
- Leaning out to reach one more bolt. The wrong version of rule 15.
The same BLS figure applies again here: 844 fatal falls, slips and trips in 2024, down from 885 in 2023 (BLS). That is a decline and it is still a lot of people. Each mistake above takes a few seconds to avoid.
Ways to host a ladder safety session with AhaSlides
A 15-minute toolbox talk works better when the team answers, not just listens. Build each slide from the rules in this post.
- Chọn đáp án: show a photo of a ladder set up at a steep angle, and ask "What is wrong with this set-up?" Use the 15 rules for the right answers.
- Từ đám mây: "Which ladder job do you do most?" The answers show you which set-ups to cover first.
- Thang đánh giá: "How often do you check a ladder before use?" Rate 1 to 5, then talk to the people who score low.
- Câu hỏi mở, ẩn danh: "Describe a ladder near-miss." People share what they would not say out loud.
- Hỏi và đáp: the supervisor takes questions on the rules that do not match your own site.
Want more ideas for toolbox talks? See Các cuộc nói chuyện an toàn 5 phút, workplace safety topics for toolbox talks và manufacturing safety training mistakes. For a year-round plan, try our monthly safety topics calendar. Các Ladder safety course template gives you the slides ready to adapt, and the Slips, trips & falls template covers the wider topic.
Các câu hỏi thường gặp
What is the 4 to 1 rule for ladders?
Set the base of the ladder one quarter of its working length away from the wall. OSHA's QuickCard words it this way, and NIOSH puts the resulting angle at about 75 degrees. In plain terms, it is about one foot out for every four feet of ladder up to the support.
What are the three points of contact on a ladder?
Two hands and one foot, or two feet and one hand, on the ladder at all times. OSHA's QuickCard describes it that way. The standard itself requires at least one hand on the ladder when climbing (29 CFR 1910.23(b)(12)).
How far should a ladder extend above the landing?
At least 3 feet (0.9 m) above the upper landing surface. That is the requirement in 29 CFR 1910.23(c)(11) for portable ladders used to reach an upper landing. OSHA's guidance also allows you to secure the ladder at the top instead.
Can you stand on the top step of a stepladder?
No. The cap and top step of a stepladder are not to be used as steps (29 CFR 1910.23(c)(8)). NIOSH goes further and says never to step above the second highest step.
When should a ladder be taken out of service?
When it has a structural or other defect, until it is repaired or replaced. It is tagged "Dangerous: Do Not Use" or similar in the meantime (29 CFR 1910.23(b)(10)).
Bắt đầu từ đâu
Pick the ladder your team uses most and run the 15 rules against it this week: inspect it, set it up, climb it. The rules your team disagrees on tell you what your next toolbox talk should cover.
