For example a typical person can safely reach an 8 ceiling on a 4 ladder.
How tall ladder to reach roof.
The highest safe standing level is four rungs from the top of the ladder.
Hence you can reach 13 feet height with a 16 feet long extension ladder.
Types of ladders and their uses.
However if you need to reach 16 feet of height then you should go for a step ladder which is no less than 12 feet tall.
For a maximum reach of 23 27 feet you can see the ladder height required is 28 feet.
When considering how tall a ladder needs to be to reach a roof don t forget that useable height of a ladder is different than its actual height.
An extension ladder needs to be several feet taller than the height you need to reach.
That means if the height of your 2 story house is 20 feet 6 meter the recommended ladder height for a straight ladder is 24 feet and extension ladder is 27 feet.
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.
Consider job demands and load capacity.
In this case your required extension ladder height will be 24 ft 3 ft 27 feet.
Extension ladders should be 7 to 10 feet longer than the highest support or contact point which may be the wall or roof line.
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.
Keep this in mind when calculating the minimum height the ladder must be to reach the roof.
For painting or cleaning gutters window of a 2 story house that don t need to reach on the roof a 24 ft.
No matter one two three or multi story home there are some more essential things to learn about ladder height and reach.
More to learn about ladder height and reach.
With a step ladder the maximum height you can reach height of the ladder 4 feet.
If you buy a ladder to reach to highest point on your house it will be too long for the short jobs.
Hence for reaching a height of 25 feet you need a ladder height of 28 feet.
Account for all users that.
Four key elements of ladder selection are.
So if you don t need to reach a height of more than 12 feet than an 8 feet step ladder will suffice.
Extension ladder is perfect for getting the job done.
Extension ladders are usually sold in even foot increments such as a 16 20 24 etc.
A common mistake is thinking your ladder will reach higher than it does.
Buy your short ladder first and see if you can t rent or borrow a tall ladder for the once in a great while tall jobs.