The ladder angle rule is important and easy way to stay safe while climbing on a ladder.
Any ladder that is leaning such as an extension or portable straight ladder which do not support itself needs a right angle to set up to keep it both sturdy and safe.
Inclined angle of ladder is an important factor in Ladder safety, if it's wrong the ladder might fall causing injuries. There is a way to determine the angle length-
1. 4 to 1 Rule
1. 4 to 1 rule - According to this rule, your ladder should be placed at 75°
this rule means that for every 4 feet of the wall height, the bottom of the ladder must be placed one ft. away.
e.g. - The height you want to climb is 20 ft.
following the rule - 20 X 1/4 = 5ft.
which means you need to place the base of your ladder 5 feet away from the wall.
if bottom is closer, it will create a wider angle and the ladder will fall backward. if the ladder is far, inclined angle is small and it will fall.
To know more about Ladder safety-
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