Skip to Content

How To Hang A Door In An Unsquare Frame [Step By Step Guide]

Perhaps you bought a new home recently, only to discover that one of the door frames is unsquared. Now, you want to hang a door, but how can you complete this task if the frame has a distinct shape? We researched and consulted with different industry experts for you, and here's what we found.

Disclosure: We may get commissions for purchases made through links in this post.

Hanging a door in an unsquare frame is a fairly DIY-friendly job. But you should still take the time to go through the steps to prevent costly mistakes. So, here's how to complete this procedure:

  1. Measure the opening
  2. Measure your door
  3. Modify the door
  4. Level the door
  5. Seal the gaps

Continue reading as we talk about the details for each step. We'll also discuss other relevant yet essential information, such as the preventive measures you must follow to stay safe while doing home renovation projects. With that said, let's dive in!

Installation of a lock on the front wooden entrance door. Portrait of young locksmith workman in blue uniform installing door knob. Professional repair service. Maintenance Concept - How To Hang A Door In An Unsquare Frame [Step By Step Guide]

Safety Tips For DIY Home Renovation Projects

DIY or carpentry tools and equipment

As with any DIY home renovation project, practicing proper safety protocols by hanging a door into a frame can help prevent accidents and injuries.

Some of the preventive measures you need to follow are:

Never Use Bad Tools

Inspect your tools before you start working on hanging your door. Replace any faulty tools that might increase your risks of accidents and injuries while working on your home renovation project.

If you're following a strict budget, ask family and friends if they have a spare piece of equipment you can borrow. Another option is to rent quality tools from trustworthy sources.

Renting the equipment is often less costly than buying a new model.

Maintain Cleanliness

Another potential safety hazard is a messy job site. Working while leaving your materials and tools on the floor may make you step on them. This event might also lead to a fall and incur expensive medical fees.

Take Your Time

Bear in mind that hanging a door can take roughly 1 to 24 hours. That period may increase if you don't have extensive DIY experience. Nonetheless, scrambling to finish the project may result in subpar results.

Take A Rest

If you feel tired or you committed an error, take a few steps back and breathe. A stressed mind might increase your chances of making mishaps.

Remember, there's no shame in resting in the middle of your door-hanging operation. But leave a sign or notify other household members and guests about the project.

That way, the operation's site should remain relatively safe for you and nearby individuals.

Things You'll Need

  • Steel measuring tape
  • Wooden shims
  • Skill saw
  • Framing screws
  • Power drill
  • Silicone caulk
  • Caulk gun
  • Car seat foam
  • Weatherstripping
  • Pen, pencil, or marker

How To Hang A Door In An Unsquare Frame

An empty interior with a door shaped like a keyhole

Note that some of the following steps may differ based on the shape of the unsquare frame. So inspect the frame's unique shape first.

Then, strategize and document your plans to ensure this job gives you the desired results.

Step #1: Measure The Opening

Grab your steel measuring tape to measure the opening's dimensions. Gather as much data as possible by measuring different areas of the frame.

You can also use a level to check for peculiar angles to the door's frame, which you should also fix as you proceed with this procedure.

Tip: Measure the door frame's length, width, and height for this step. Also, check for inconsistencies in the frame. For example, the frame's topmost region might be wider than its bottom area.

Step #2: Measure Your Door

Note: This step assumes you purchased a door before starting this operation.

Use your steel measuring tape again for this step. This time, measure your door's dimensions and document your findings. This step should give you an idea of how to modify the fixture to fit the frame.

Next, compare the door's dimensions with the frame's measurements. Mark the differences on your door with a pen, pencil, or marker. Use a ruler or straight edge if you need to mark straight lines.

Step #3: Modify The Door

Cut the marked areas of the door with your skill saw. Next, bring the cut door to the unsquare frame for a test fit. Modify the door's measurements further if needed.

Step #4: Level The Door

Installation of a lock on the front wooden entrance door. Portrait of young locksmith workman in blue uniform installing door knob. Professional repair service. Maintenance Concept

Tip: It can be easier than intended to complete this step with an extra pair of hands.

Place the level next to the unsquare door frame. You can have that tool on the frame if it's reasonably level. Otherwise, request help from another person to keep the level straight, as you need it as a guide.

Then, partially screw the door assembly by securing the top hinge. Place shims in the gaps to help make the setup straight. Don't forget to look at the level to ensure this installation part is straight.

After leveling the top portion of the assembly, move to the bottom parts of the setup. Screw the bottom hinge in place and add shims to make the door and its frame level.

Check the level of the top and bottom areas of the door assembly after leveling its bottom areas.

Don't forget to open and close the door to check if it functions as intended. Modify the placement further if necessary.

Step #5: Seal The Gaps

You'll likely run into door gaps because of the frame's uneven design. So measure the gaps and cut car seat foam to size based on your findings.

Next, apply silicone caulk on a reasonably small gap. Spread the product with your finger. Allow the caulking to dry afterward.

For fairly large gaps, stick the car seat foam into those spaces. You may need to nudge that material in place with a shim, flathead screwdriver, or another similar tool. Once filled, seal those gaps with silicone caulk.

If you have a gap at the bottom of the door assembly, apply weatherstripping tape to that location. Follow the manufacturer's instructions to ensure a tight seal with this product.

Check out this interior door on Amazon.

You can also watch the video below to gain additional insights into this door installation job:

Also, watch this video if you need a visual guide for sealing gaps between the door's frame and the wall:

You may also take this project further by painting the door and frame. Painting the assembly can help mask imperfections. The following video can help you with that particular concern:

How Do You Cut A Door To Fit A Frame?

Cutting a door to fit an uneven frame might require you to take additional steps. Here's a process that may help you with completing this particular concern:

What You'll Need

  • Painter's tape
  • Sawhorse
  • Circular saw

Step-By-Step Guide

  1. With the door out of the frame, measure and mark the areas you need to cut.
  2. Apply painter's tape to the areas you need to cut to prevent scuffing.
  3. Place the door on a sawhorse and cut the areas with painter's tape.
  4. Place the cut door to the frame to check if it fits.

Check out this folding sawhorse on Amazon.

Tip: If you don't have a sawhorse, you can place the door on two paint buckets. Then, request help from another person to hold the fixture in place while cutting it.

How Much Does It Cost To Cut And Hang A Door?

Locksmith install doorlock by drilling door wooden. Carpenter drills a hole with an electrical drill, interior wood door lock installation working with drill.

Cutting and hanging doors are tasks often found in professional door installation services. Industry experts usually charge about $40 to $90 per hour to complete those procedures.

Take note that these expenses may skyrocket if you allow the licensed contractor to purchase the equipment and materials needed for those jobs.

So you might be able to save some extra cash by purchasing certain items required to cut and hang your doors.

Our Final Thoughts

Hanging a door to an unsquared frame might look like a reasonably straightforward job.

But failure to pay attention to details may result in additional problems with the fixture. So let this post be your guide to help ensure that the door installation job goes well.

Made it to the end? Check out these related articles below!

How To Hang A Door In An Existing Frame? [7 Steps]

How To Frame A Bifold Door Opening [Step By Step Guide]