What Is Underpinning On A Mobile Home?

What Is Underpinning On A Mobile Home

What does underpinning on a mobile home mean?

If you have built your house on some kind of foundation, but then wanted to move it somewhere else, you would need to remove the old supports and put some new ones in. This is called underpinning.

Pretty much anything that is supporting something can be said to be “underpinning” it.

What is Underpinning a Mobile Home?

Underpinning a mobile home is the same as putting support beams underneath it. If you were to try and move your home without underpinning, the foundation of the house would probably collapse due to the weight/pressure of everything above it.

Underpinning is an expensive process. Some ways of keeping costs down include hiring a company (rather than doing it yourself) for moving, re-hiring a realtor to find a new lot for your mobile home after it’s been moved, and getting a cheaper mobile home insurance plan.

Also Read: What Is Considered A Permanent Foundation For A Mobile Home?

How to Underpinning on a mobile home?

Here are some steps to follow for underpinning a mobile home.

  1. Remove the existing beams and supports. These can be found under your home around where it touches the ground.
  2. Measure out how much space you need to put beams in, and make sure to leave extra room for error.
  3. Drive new wooden beams into the ground underneath your mobile home (in safe, pre-measured places).
  4. Use heavy equipment like cranes or forklifts to move the mobile home back onto its original foundation.

How Much Cost to Underpin a Mobile Home?

The cost of underpinning a mobile home varies based on several factors: how good of a condition your mobile home is in, how long it takes to do the job and who you hire (or if you do it yourself).

Underpinning a mobile home costs around $10 per square foot.

This means that for minimum work on an older mobile home, you would need to pay about $7500 before taxes and other fees.

What Do You Use For Underpinning?

Beams and supports. Beams need to be at least 5-8 inches in diameter, plus 3-6 feet of length for each section.

This means that you will need around 4 beams for every square foot of underpinning work done on your mobile home. The more beams that are used, the greater the support you have under your house.

If you cannot afford to hire people to help you with the job, consider getting a do it yourself kit online where it has all the materials needed for you to make your place safe again by yourself.

What is the Purpose of Skirting on a mobile home?

Mobile homes need to be skirted to protect the area around them from damage or dirt that could potentially cause environmental concerns or property value issues.

The skirts that go underneath a mobile home should touch all four sides and not be less than three feet away from any other buildings.

It is also important to make sure that there’s a slope coming off of the skirt at least 1/4 inch every 4 feet around the mobile home, this prevents water from becoming stagnant.

Also Helpful: How To Keep Water From Running Under Mobile Home?


The underpinning of a mobile home is what supports the frame and prevents it from tipping over.

It also helps to stabilize the foundation so that you can rest easy knowing your house won’t be going anywhere anytime soon!

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