What is the ladder extension ratio for safe setup?

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What is the ladder extension ratio for safe setup?

What’s being tested is how to set a ladder at a safe angle. The established rule is the 4:1 ratio: for every 4 feet of vertical rise, place the base about 1 foot from the wall. This creates roughly a 75-degree angle, which gives good stability and reduces the chance of tipping or slipping. For example, if the ladder reaches 12 feet up the wall, the bottom should be about 3 feet from the wall. Using a smaller base distance makes the ladder too steep and unstable; a larger base distance makes it too shallow and also risky. The 4:1 ratio is the standard for safe setup, so the described guideline is the best answer.

What’s being tested is how to set a ladder at a safe angle. The established rule is the 4:1 ratio: for every 4 feet of vertical rise, place the base about 1 foot from the wall. This creates roughly a 75-degree angle, which gives good stability and reduces the chance of tipping or slipping. For example, if the ladder reaches 12 feet up the wall, the bottom should be about 3 feet from the wall. Using a smaller base distance makes the ladder too steep and unstable; a larger base distance makes it too shallow and also risky. The 4:1 ratio is the standard for safe setup, so the described guideline is the best answer.

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