According to the 4 to 1 rule for extension ladders, how many feet should the base of the ladder be moved out for every 4 feet of height?

The correct answer is that the base of the ladder should be moved out 1 foot for every 4 feet of height. This guideline, known as the 4 to 1 rule, is pivotal in ensuring the stability and safety of an extension ladder during use. By maintaining this ratio, the ladder is positioned at a safe angle, typically around 75 degrees from the ground, which helps to prevent accidents due to tipping or slipping.

When applying this rule, if you have a ladder that is set to reach a height of 12 feet, for example, you would place the base 3 feet away from the wall or surface it leans against (since 12 feet divided by 4 equals 3 feet). This principle is essential for anyone using ladders, especially in home inspections, construction, or maintenance tasks, where ensuring proper ladder safety is crucial to prevent falls and injuries.