How to Adjust a Mobile Home Door

Adjusting a mobile home door can be an important task for homeowners. When the seal around your mobile home door is compromised, it will create drafty areas and make it difficult to keep a comfortable temperature inside the house. Improper shimming can also lead to more serious issues, such as decreased security and damage to the surrounding framing.

How to Adjust a Mobile Home Door

One of the biggest advantages of how to shim an exterior door is that it can help create a better seal, which means improved energy efficiency for your home. This results in lower utility bills and a more comfortable living environment overall. This can be especially beneficial in mobile home door frames that don’t always fit perfectly and tend to move or warp over time. In this blog article, you can find step-by-step instructions on how to adjust a mobile home door.

Tools You Will Need

  • Hammer
  • Tape measure
  • Utility knife
  • Wood shims
  • Saw (for cutting shims)
  • Level or straight edge
  • Door jamb kit
  • Wood filler
  • Door sweep (if necessary)
  • Caulk gun and caulk

Step-by-Step Processes for How to Adjust a Mobile Home Door

Step 1: Inspect the Door

Before you begin, examine the door for any signs of damage or rot. Also look to see how well it is hung and how much room there is between the door and the frame. If there is a large gap, then shimming may be necessary. Using a flathead screwdriver, remove all screws that attach the door to the frame. You may need a drill to help with this.

Remove All Screws That Attach the Door

Step 2: Measure for Shim Sizes

Measure how thick the gap is between the door and the frame. Depending on the gap’s size, you may need to use different shims to fill it. Make sure to make accurate measurements to ensure a snug fit. Using a utility knife, cut the shims to fit the measured gap. Make sure to make smooth cuts, as this will help avoid any further damage when inserting them into the frame.

Step 3: Insert Shims Into the Frame

Carefully insert the shim pieces into the frame. Be sure to press them down firmly, so they are flush with the frame. Ensure you are not forcing them too tightly, as this can damage the door or frame. Once all the shim pieces have been inserted, use screws to secure them. This will ensure they do not come loose or move around due to everyday use.

Step 4: Check the Fit of the Door

With all the shims in place, test how well the door fits into the frame. Make sure that it is not too tight or loosely fitted. You may need to adjust the shims accordingly if there are any gaps. If you have a gap between the frame and the door that is bigger than an eighth of an inch, use caulk or weatherstripping to seal it up. This will help improve how well the door fits into the frame and keep cold air from entering your home.

Step 5: Drill Holes for Screws

Using a drill, make holes in the shims and frame for the screws. Make sure to use the same size drill bit you used when removing the screws. Carefully insert the screws into their respective holes. Be sure not to over-tighten them, as this can damage the frame or door.

Step 6: Test for Comfort

Finally, test how comfortable it is to open and close the door. If there is excessive resistance when opening or closing the door, you may need to adjust how tight the screws are. With your how-to-shim exterior door project complete, you can now enjoy the benefits of a properly fitted door.

Adjust How Tight the Screws Are

By following these steps, you can easily learn how to shim an exterior door and improve how well it fits into the frame. Be sure to use the correct tools and materials so that your work does not cause any further damage.

Tips for How to Adjust a Mobile Home Door

  • Before beginning the process, wear protective gloves and safety goggles to protect your hands and eyes from any potential hazards.
  • Use a level to ensure the door is plumb (vertically aligned) in its opening before shimming it. If not, use a pry bar to adjust the frame until it’s level.
  • When shimming, use a thinner material such as aluminum or plastic rather than wood, which can expand and contract in response to temperature changes.
  • Don’t tighten the screws too tight when attaching the shims; overtightening them can cause warping or splitting of the wood frame.
  • Be sure to use shims that are the same thickness as each other and evenly spaced around the door frame.
  • After installing the shims, check to ensure that the door opens and closes smoothly without obstructing or sticking points. If so, use a wood chisel to carefully trim away any shim material blocking the door’s movement.
  • Use a caulking gun to apply caulk around the frame and shims where necessary, which will help ensure an airtight seal and prevent any water infiltration into the home.

By following these simple steps, you can adjust your mobile home door safely and securely.

What Should Be Done to Protect the Door and Frame From Moisture After Shimming?  

After shimming the exterior door, it is important to protect the door and frame from moisture. To do this, you should caulk around the perimeter of the door and frame using a high-quality outdoor silicone caulk. This will help prevent drafts and water damage by creating a tight seal. You may also want to apply weatherstripping around the edges of the door and frame to protect it from moisture further.

Caulk Around the Perimeter of the Door

Additionally, you may want to consider applying a clear sealant or waterproofing agent to any exposed wood surfaces to prevent warping and rot due to water penetration. These precautions will help ensure that your exterior door is protected from moisture and lasts for years to come. By taking the time to shim and protect an exterior door properly, you can help ensure that your home remains safe and secure. 

If you are unsure how to do any of these steps, it is best to consult a professional who can help you complete the job correctly. Taking the extra effort will go a long way in ensuring that your exterior door is secure and will last many years.  

Are There Any Special Considerations When Shimming a Metal Door? 

When shimming a metal door, it is important to know how the door might react when exposed to moisture or extreme temperatures. There are some special considerations that should be taken into account:

  • Measure the gap between the door and jamb accurately before cutting your shim material. Ensure enough space for the shim to fit without forcing it in.
  • Cut the shim material out of a non-corrosive material like plastic or aluminum, as this will reduce how much moisture is absorbed and how quickly temperature changes affect the door.
  • Use rubber washers between the screws and the metal door frame to reduce how much heat is transferred from the outside environment to the door.
  • If possible, it is best to use silicone caulk between the shim and the door frame, as this will provide a better seal against moisture and air leaks.

These considerations are important when shimming an exterior metal door, as they can help ensure the door is secure and will function properly in all weather conditions.

How Can You Avoid Damaging the Door When Shimming It? 

When shimming an exterior door, it is important to take steps to avoid damaging the door or its frame. Here are some tips for how to shim an exterior door without causing damage:

  • Start by carefully removing any existing trim or casing around the door frame and inspecting the door and its frame for signs of damage. If either is damaged, repair them before continuing with the shimming process.
  • Measure the door’s width and height to determine which size of door shim you need.
  • Make sure the door is closed fully before beginning to shim it.
  • Place a plastic bag or other protective covering over any exposed surfaces that the shims, such as woodwork or windowpanes, could damage.
  • Place the door shims in the correct location, ensuring they touch both the door and its frame. Use a hammer to gently tap them into place so that they fit snugly against both surfaces.
  • Check to ensure the door opens and closes properly with the shims in place before securing them with wood glue and nails.
  • Once the shims are in place, replace any trim or casing that was removed to begin the process.
Ensure the Door Opens and Closes Properly

Following these steps can help you properly shim an exterior door without causing damage to it or its frame. This can help ensure a sturdy installation that is sure to last for years to come.


In conclusion, adjusting a mobile home door is not as difficult as it may seem. With the right supplies and instructions, anyone can easily make these adjustments. Start by measuring the gap between the jamb and the frame. If you find that there is more than 1/4” of space, use shims to reduce this gap. Place shims at each corner of the door, and if necessary, add more to create a snug fit.

Once your shims are in place, secure them with finishing nails. With these simple steps, you can easily adjust a mobile home door for a better fit. I hope this article has been beneficial in learning how to adjust a mobile home door. Make Sure the precautionary measures are followed chronologically. 

Photo of author

Adrian Green

Adrian has been interested in woodworking since he was a child. His father had a woodworking shop, and Adrian would help him out and learn from him. He gained basic carpentry knowledge as well as an understanding of how to work hard and take care of business. He enjoys woodworking as a hobby. He loves the feeling of creating something with his own hands, and the satisfaction that comes from seeing his finished products used by others. So he started this blog to spread his passion and knowledge to those interested in DIY wood-working projects. He knows that with a little guidance and practice, anyone can create beautiful pieces of furniture or décor from scratch.

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