Ladder Height Above Roof

Wood ladders can t have more than two sections and must not exceed 60 feet.

Ladder height above roof.

The ladder should be at the correct angle with the base 1 foot out from the surface it rests against for every 4 feet of height to that point. Extension ladder height estimated reach above the ground 16 foot ladder 15 foot reach. Here are the ladder heights and the highest height they work for. Per osha 1910 23 d 4 the side rails of through or sidestep ladders must extend 42 inches above the top of the access level or landing platform served by the ladder.

16 foot ladder 13 feet high 24 foot ladder 21 feet high 28 foot ladder 25 feet high 32 foot ladder 29 feet high 36 foot ladder 33 feet high. Both types are most often used for outdoor projects such as painting or reaching the roof. For instance on an extension ladder you can only use up to the top three feet. So if you don t need to reach a height of more than 12 feet than an 8 feet step ladder will suffice.

Extension ladders should be 7 to 10 feet longer than the highest support or contact point which may be the wall or roof line. 24 inches this extension above the access level must be at least 24 inches wide to accommodate the width of climber s body and not more than 30 inches of clearance allowing the climber to easily reach both hand rails. Extension ladders essentially two straight ladders fitted with guides that allow one section to extend beyond the other offer the greatest length in a general purpose ladder. The maximum height you can reach height of the ladder 4 feet.

One section straight ladders typically have a reach two feet higher than the ladder length. Types of ladders and their uses even though the primary purpose of a ladder is to reach places that you cannot usually reach on your own all ladders are not the same. Though not longer than 30 feet it s the most common of portable ladders and combines practical height with easy maneuverability. This will allow enough length for proper setup the overlap of ladder sections height restrictions of the highest standing level and where appropriate the extension of the ladder above the roof line.

For a maximum reach of 23 27 feet you can see the ladder height required is 28 feet. Keep this in mind when calculating the minimum height the ladder must be to reach the roof. The sections must overlap at least 3 feet on ladders up to 36 feet in length and as much as 5 feet on longer ladders. Hence for reaching a height of 25 feet you need a ladder height of 28 feet.