Ladder Safety Concerns: What's the Maximum Height for Each Type of Ladder?

Please inform me regarding:

- What is the maximum height of:
1) a step ladder
2) a straight ladder
3) an extension ladder
4) a ladder used for scaffolding access

Thank you for sharing a good presentation on Ladder Safety. Keep on sharing.

Response to Kesava Pillai Sir

I was not aware of the answer to the question you raised. I then searched the internet and found the following: "If the base is moved out further, the stress on the side rails is more severe, and the wider angle may cause slippage."

I look forward to hearing your comments. Please continue sharing your expertise with us.

Regards,

Dear friends, it is interesting to see many "attempts" around the questions. The specific question here is "What is the maximum height of:

1) Step ladder
2) Straight ladder
3) Extension ladder
4) Ladder used for scaffolding access?"

We find a lot of postings but none with a definite answer. Can anyone try to answer the question, please?

The PPT from Mr. Sayeed, the 27th one, needs correction. We have to digest the meaning of 4:1. The maximum height of the step ladder and extension ladder given as 20' and 44' also requires clarification. Kindly check!

Regards,
Kesava Pillai

Maximum Heights of Ladders

Your question: What is the maximum height of:
1) a step ladder?
2) a straight ladder?
3) an extension ladder?

The answer is attached.

For 4) the ladder used for scaffolding access: the maximum height is 30 feet.

Regards,
Kesava Pillai

Dear Sir, thank you for your inputs into the thread. The doubt of the thread initiator has been fully cleared by you. Now, I would like to know about the ladder used as access to scaffolding.

Types of Ladders for Scaffolding Access

Which type of ladder should we recommend for access to scaffolding? A ramp, runway, stairway, or vertical ladder? And why?

I also look forward to gaining more clarity on the 4:1 ratio of ladder placement.

Thanks for your write-up regarding the ladder. It clearly answers how we can achieve the 4:1 ratio for ladder placement. However, the question raised by Mr. Keshav Pillai still remains unclear. Why should we maintain this 4:1 ratio? Let's wait to get more clarity on this topic.

Best regards,
Hseofficerjsk

Wow, I can't believe this topic is still active and receiving more and more useful comments. It's very good to see. I am not from a safety background; my habit is just to collect useful data and store it. That's why I have this PowerPoint presentation that I shared earlier.

After reviewing all the comments from the esteemed seniors, I truly feel pleased to be a part of this discussion and want to extend my thanks to all. I have some additional information regarding a question on the ratio 4:1. Please review the attachment below; I hope it will be helpful as well.

Once again, a big thank you to all the seniors for their insightful comments (HSEofficerjsk, Keshav Pillai, Dilip, and all).

Thank you,

Regards