What Size Ladder for 2 Story House

What Size Ladder for 2 Story House

Ladders come in different size and load ratings. In general, ladders sizes vary from two to forty feet.

Having a suitable type and right size ladder gives you greater flexibility and comfort while working. So, it’s essential to choose a ladder wisely by thinking about the sites and home you work on.

“What size ladder do I need”- it’s a common asking of many people when they require buying a ladder. Selecting a ladder for one story home is not very hard. You can assess your height and ceiling height and make a purchase accordingly.

But, the problem arises in choosing the right ladder for a 2-story house. If you have a multiple story (2 story or more) house, a single extension ladder will not perfect to do the jobs.

While purchasing a ladder, one question that may come in your mind is what size ladder for 2 story house is suitable?

Read more below and learn more about what size ladder will be perfect for your 2 story house.

What You Need to Know About Ladder sizes

First of all, you have to consider the safety when deciding on the length of your ladder. 


 The maximum working height is less than the overall length of the ladder. If you set it up an angle, it will reduce its working height too.

How To Calculate The Length Of A Ladder (Extension & Step Ladder) To Reach A Certain Height

Extension Ladder Sizing

In general, it’s not recommended to step on the top three caps/ rungs of an extension ladder.

Consider the following factors to calculate the length of a ladder to reach a certain height.

  • Extension ladders feature an overlap which is not shown in the nominal length.
  • You have to set up the ladder at a tilt position (4:1 pitch / 75-degrees)
  • You have to avoid standing on the top few rungs.
standing on the top few rungs.

Following is a list of extension ladder lengths and the associated maximum working heights.

Ladder Height

Height to top support point

The maximum working ladder length

Highest standing level




9' 2"




13' 1"




16' 11"




20' 10"




24' 8"




27' 7"




30' 6'

The maximum working length is less than the total ladder length. The reason is the overlap of extension ladder sections.

For an extension ladder, the highest standing level is 4 rungs down from the top.

Stepladder Sizing

In general, it’s not recommended to step on the top cap of a stepladder.

The maximum safe reaching height of a step ladder is 4-ft higher than the height of the ladder. For example, if the height of the ceiling is 8 ft., a person can safely reach that on a 4-ft. ladder.

For a step ladder, the safe standing level is 2 steps down from the top.

standing level

Following is a list of step ladder lengths and the associated maximum working heights

Max. height to reach

Which size ladder to buy

Highest standing level
(two steps down from the top)






1' 11"



2' 10"



3' 10"



4' 9"



5' 8"



7' 7"



9' 6"



11' 5"



13' 4"

Usually, to asses what size ladder for 1 story house, it’s considered that the roof line of a single story house is 17 feet from the ground.

To asses what size ladder is right for a 2 story house, you should be technical in doing so.

How Tall Is A Two Story House

It’s considered that the roof line of a 2 story house is 25 feet from the ground. For a 2 story house, you should opt for extension ladders instead of step or a platform ladder.

Let’s have a try to one formula.

What Size Ladder For 2 Story House

For the extension ladder, it’s not getting the ladder length to match the maximum height you need to reach. For jobs like roofing You’ll need some extra length to cover the section that will extend beyond the gutter height.

What size Ladder for 2 story house

Follow the steps.

Step: 1

Measure the actual height of the roofline (Suppose, it’s 25ft. )

Measure the desired overhang (Suppose, it’s 2 ft.)

Measure the desired pitch (suppose, it’s 5 ft. from the house)

Actual Height (AH)+ Desired Overhang (DO) + Desired Pitch (DP)

So, 25+2+5= 32

Step 2: 

  Go for the ladder with an actual fully extended length of 32 ft. or greater.

Extension ladders should be 6 to 10 ft. longer than the contact point (wall or roof line).

However, if you don’t have a plan to reach on the roof, a 24-ft. ladder will work fine to get the eaves of a 2 story house for cleaning window or painting.

Louisville FE3228-E03, 28 Feet, 300 Pound Duty Rating Fiberglass Extension Ladder is a perfect choice as a 2 story ladder. Moreover, if you’re looking to take care of the bigger jobs that need to accomplish around the outside and inside of a home, this ladder can be an excellent choice.

To find out more read our review of Top 7 Best Extension Ladder

Thanks for reading our article on the What Size Ladder for 2 Story House. Hope you find it helpful.

Stephen Colbert

Stephen Colbert is a specialist in avionics technology. He has been involved in avionics technology since 1993. He spent more than 15 years writing about high tech gadgets. Numerous publications have interviewed him. He is very passionate about sharing his knowledge.

Click Here to Leave a Comment Below 0 comments

Leave a Reply: