3 feet.
An extension or straight ladder used to access an elevated surface must extend at least 3 feet above the point of support (see diagram). A ladder extended to a height of 48-ft or longer requires a 6-ft extension beyond the eave.
What is the minimum distance an extension ladder must extend?
3 feet
Extension ladders range in length from 16 feet up to and exceeding 40 feet. All non-self supported ladders should extend a minimum distance of 3 feet past the edge they rest against but not more than 4 feet. As with any ladder, extension ladders should be at the proper height and angle for optimum safety and stability.
What is the minimum distance that a ladder must extend beyond the top of a trench?
3 feet
To be safe, an employer should require his employees to place ladders in the trenches at a depth of 3 feet . Since trenches are never uniform in depth there might be a low spot which could result in a fine. Finally the ladder must extend out of the top of the trench at least 3 feet.
How far must a ladder extend past an access point?
For access to an elevated work surface, erect ladders so that a minimum of 1 m (3 ft) extends above a landing platform. Tie the top at support points. Use care when getting on and or off the ladder at the top or bottom in order to avoid tipping the ladder over sideways or causing the ladder base to slide.
What is the minimum distance that a ladder is required to project above the point of contact at the top?
The top of the cage shall be a minimum of 42 inches (1.1 m) above the top of the platform, or the point of access at the top of the ladder, with provision for access to the platform or other point of access.
How far must extension ladders extend above the elevated surface?
three feet
Set the ladder at the proper angle. When a ladder is leaned against a wall, the bottom of the ladder should be one-quarter of the ladder’s working length away from the wall. For access to an elevated work surface, extend the top of the ladder three feet above that surface or secure the ladder at its top.
How long is a 28 foot extension ladder not extended?
Extension Ladder Chart
| Extension Ladder Height | Maximum Reach of Extension Ladder | Distance of Base Placement from Wall |
|---|---|---|
| 20 foot | 19 feet | 5 feet |
| 24 foot | 23 feet | 6 feet |
| 28 foot | 27 feet | 7 feet |
| 32 foot | 31 feet | 8 feet |
How far does a ladder need to extend past the landing on a trench or excavation?
The ladder must extend at least 3′ above the top of the trench and be placed on firm ground within the trench. A ladder must be provided every 25 feet of lateral travel.
How far apart should ladder rungs be?
12"
It has been determined that you are meeting the intent of the standard which is to provide a uniform clear distance of 12″ equally spaced between rungs of your ladders on the described project.
How far should a ladder be from the wall?
Use the 4-to-1 rule: Make sure the ladder is 1 foot away from the wall for every 4 feet that the ladder rises. For example, if the ladder touches the wall 16 feet above the ground, the feet/base of the ladder should be 4 feet from the wall.
What is the distance a portable extension ladder or fixed wooden ladder must extend above the landing when used for access?
1 m
Extend the ladder at least 1 m (3 ft) above the landing platform or the point of support.
What is the base distance to height ratio for an extension ladder?
4:1
Extension ladders must be placed at the proper angle. Use a 4:1 ratio for setting ladders (approximately 75 degrees) – for every four feet in height, the base of the ladder should be moved one foot out from the wall or structure.
When setting up a ladder What is the step-across distance?
The step-across distance from the nearest edge of ladder to the nearest edge of equipment or structure shall be not more than 12 in (30.5 cm) or less than 2-1/2 in (6.4 cm).
How do you determine the length of a ladder?
A person’s maximum safe reaching height is approximately 4′ higher than the height of the ladder. For example, a typical person can safely reach an 8′ ceiling on a 4′ ladder*. Extension ladders should be 7 to 10 feet longer than the highest support or contact point, which may be the wall or roof line.
How do you transport a 28 foot ladder?
Tie the extension ladder down securely when you transport by car. Take four pieces of rope and tie two on the front of the ladder and two on the back. Secure tightly on each side of your front and rear car bumpers. This acts as a pyramid tie so the ladder can’t shift from side to side or front to back.
What is the longest extension ladder?
According to the Guinness World Records, the longest ladder ever recorded was 41.16m (135 foot) long! It was designed and made in 2005 by the Handwerks Museum in Austria. In total, it had 120 rungs!
Triple-Section Rope Operated Extension Ladder
- Wall running wheels.
- D-shaped rungs.
- Rubber feet.
How far apart should ladder rungs kids be?
There should not be any spaces on swing sets that can potentially trap the child’s arm, head or any other body part. The rungs on the ladders should either be less than 3-1/2 inches or more than 9 inches apart, according to KidsHealth.org.
What are ladder rungs?
A rung is one of the horizontal steps of a ladder. You should never stand on the very top rung of a ladder — it can be dangerous!
How far apart are ladder jacks?
Ladders are spaced 30 feet apart.
How far should ladder be from wall in meters?
In other words, the distance between the wall and the base of your ladder should be one quarter of the ladder’s height (putting the ladder at a 75° angle). This applies whether you’re measuring in feet or metres.
What is the minimum width of a ladder?
16 inches
Minimum clear width of 11.5 inches on portable ladders and 16 inches for fixed ladders.
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