Types Of Mobile Home Foundations: Which One Is Right For You?

Navigating the world of mobile homes? One of the first decisions you'll encounter is choosing the right foundation.

Just like selecting the perfect wallpaper or window view, the foundation plays a crucial role in the safety, longevity, and comfort of your home.

Pile foundations ready made to a mobile home

Dive into this guide as we explore the different types of mobile home foundations and help you discover which fits your needs seamlessly.

What Is The Purpose of Mobile Home Foundations?

Foundations provide a stable and secure base for the home, ensuring that it does not shift or move over time.

It also helps distribute the home's weight evenly, preventing any area from bearing too much weight and potentially causing damage.

Mobile home foundations serve several purposes, including:

  • Stability and safety: A solid foundation ensures the home remains stable and safe, even in adverse weather conditions or seismic events.
  • Protection from moisture: The foundation helps to keep moisture out of the home, preventing mold and other types of damage.
  • Prevention of settling: A strong foundation prevents your home from settling and shifting, reducing the risk of structural damage.
  • Support for the structure: The foundation supports the entire structure, ensuring it remains level and secure.

Non-Permanent Vs. Permanent Mobile Home Foundation

There are two major categories of mobile home foundations: non-permanent and permanent.

Each has its own benefits and drawbacks, so it's essential to know the difference between them.

Non-Permanent Mobile Home Foundation

Non-permanent foundations, like "pier and beam" setups, use materials like cinder blocks to elevate homes off the ground.

They're quicker to install and more affordable but may need regular re-leveling.

Non-permanent foundations are best suited for homes intended to be moved again in the future.

Permanent Mobile Home Foundation

Permanent foundations, such as a slab or full basement, offer a more solid and long-lasting base for mobile homes.

While this foundation type comes with a higher upfront cost, it provides better protection against shifting, settling, and potential damage.

It also adds value to the home and might be a requirement for some mortgage lenders or local regulations.

If you're planning to keep your mobile home in one location for a long duration, a permanent foundation might be the right investment.

Also Read: Types Of Mobile Home Gutter Alternatives

Types Of Mobile Home Foundations

Without further ado, let's discuss the five most common types of mobile home foundations.

Pier & Beam Foundation

The pier and beam, known as a "post and beam," is the most popular foundation for mobile homes.

It consists of a series of concrete blocks or wooden posts placed under the home to support it.

The beams are then placed on top of the piers, and the home is placed on top of the beams.


  • Good ventilation and access for repairs.
  • Easier access to plumbing and utilities.
  • Suitable for uneven terrain.


  • Prone to pests and moisture.
  • May require more maintenance.
  • Not as stable as other options.

Price Range: $6,100 to $17,200

Basement Foundation

A basement foundation is a subterranean level beneath the home, providing extra living space and storage.

It's a durable option and can withstand harsh weather conditions.


  • Added living and storage space.
  • Improved energy efficiency.
  • Enhanced protection from extreme weather.


  • High initial cost and construction complexity.
  • Potential water leakage and moisture issues.
  • Not suitable for all soil types.

Price Range: $13,000 to $30,000

Crawl Space Foundation

A crawl space foundation is similar to a pier and beam. It consists of a series of concrete blocks or wooden posts placed under the home to support it.

The difference is that the crawl space foundation has a small space between the ground and the home.

The space allows for easy access to the plumbing and electrical systems. It is also a more affordable option compared to other types of foundations.


  • Allows for utilities and insulation installation.
  • Can be less expensive than the full basement.


  • Prone to humidity and moisture.
  • Limited space for repairs and maintenance.
  • Potential pest intrusion.

Price Range: $8,400 – $26,500

Slab Foundation

A slab foundation is a concrete slab that is poured directly on the ground. This is more affordable and easier to install.

However, it is unsuitable for high water tables or flood-prone areas.

Additionally, it does not allow easy access to the plumbing and electrical systems.


  • Low maintenance and minimal pest issues.
  • Provides good stability and durability.
  • Suitable for areas with high water tables.


  • Limited access to plumbing and utilities.
  • Repairs can be challenging.
  • Susceptible to cracking in certain soil conditions.

Price Range: $6,280 – $21,000

Pit Foundation

A pit foundation is a type of foundation that is dug into the ground.

The design deviates from traditional foundation methods by creating a sunken space for the home to rest in.

It's also more affordable and easier to install, but like slab foundations, it's not for areas with high water tables or flood-prone areas.

Additionally, it does not provide additional living space or storage.


  • Provides natural insulation, which allows for enhanced energy efficiency
  • Improved protection against extreme weather.
  • Aesthetically distinctive.


  • Complex construction and excavation.
  • Potential for water infiltration.
  • Limited design flexibility.

Price Range: $2,100 to $6,100

Continue Reading: How Far Apart Are Studs In A Mobile Home?

Factors To Consider When Choosing A Mobile Home Foundation

When it comes to choosing a mobile home foundation, there are several factors that you need to consider.

  1. Local Building Codes: Be aware of local regulations or guidelines for mobile home foundations for your specific home type.
  2. Climate: Adapt the foundation to weather conditions, including wind, snow, or earthquakes.
  3. Budget: You need to weigh the cost against the benefits to determine what type of foundation is right for you.
  4. Soil Type: If you have unstable soil, you may need to choose a foundation designed to withstand movement.
  5. Elevation and Grading: Assess the land's slope and make sure the chosen foundation can accommodate the required elevation changes.
  6. Installation Expertise: Ensure that the chosen foundation type aligns with the skills of your contractors.
  7. Future Modifications: Consider potential modifications or expansions to your mobile home. Some types are more adaptable to changes.
  8. Utilities and Insulation: Plan for utility connections and insulation. Adequate insulation prevents heat loss and maintains energy efficiency.
  9. Resale Value: A permanent foundation raises home value, making a solid long-term investment. But if you're not planning to sell, it's less crucial.

What Are The Requirements for Installing a Mobile Home Foundation?

When it comes to installing a mobile home foundation, there are a few requirements that must be met.

  • The foundation must adhere to The Federal National Manufactured Housing Construction and Safety Standards Act of 1974 (HUD)
  • A licensed professional contractor familiar with mobile home foundation requirements must design and install the foundation.
  • Foundation specifications include size, depth, and load-bearing capacity:

    • Size depends on the mobile home's dimensions.
    • Depth is based on the area's frost line.
    • The foundation must bear the home's weight, including added loads like furniture and appliances.

  • Finally, there are specific requirements for the footings and piers supporting the foundation:

    • Footings should be below the frost line and support the weight of the piers and the home.
    • Piers need regular spacing and bear the home's weight without settling or shifting.

You Might Also Like: How To Make A Mobile Home Look Like A Farmhouse

What Is The Strongest Foundation For A Mobile Home?

The strongest foundation for a mobile home is the permanent foundation, often called a full perimeter foundation or slab foundation.

It's constructed using concrete blocks or a concrete slab, providing a stable and secure base for the mobile home.

Additionally, a permanent foundation can enhance the home's value and often meet the criteria for traditional home mortgages.

While it can be more expensive and time-consuming to install, its benefits in terms of safety, value, and durability make it a worthwhile investment.

Final Thoughts

As you navigate the world of mobile homes, the foundation you choose plays a pivotal role in the home's safety, longevity, and overall value.

With various types available, each with its own pros and cons, understanding their nuances is essential.

Consider local regulations, climatic conditions, budget, and future plans when deciding.

Ultimately, a well-informed choice ensures your mobile home remains a comfortable, safe, and valuable space for years to come.

Did you find this article helpful? Let us know in the comments below!

Leave a Reply

Your email address will not be published. Required fields are marked *