How to Hang a Door

By / July 10th, 2025 / There are currently 0 comments

Here at Build & Plumb, we know some home improvements immediately impact a room. Hanging an internal door, whether replacing an existing one or fitting as part of a renovation, ensures your room feels finished and private. 

While the task may seem daunting if you’re new to DIY, we assure you, it’s manageable with the proper preparation, tools, and clear instructions. 

In this guide, we’ll walk you through hanging an internal door—from measuring and trimming to fitting hinges and installing handles—offering practical tips and advice to help you achieve a reliable, trade-approved result.

Tools and Materials

Before you begin, here’s a handy list of everything you’ll need to get started. We recommend choosing high-quality materials and trade-friendly tools to ensure a professional finish in your job. 

Step One: Measuring

Before you begin, take accurate measurements of your door and frame and check against your internal door to determine adjustments. Doing so will prevent issues like sticking, uneven gaps, or improper alignment later.

Use a tape measure to measure the height and width of the door opening at several points. Note the smallest measurements, as frames can sometimes be slightly out of square. It’s also a good idea to check the depth of the frame to ensure your new door is the correct thickness.

Allow for a small, even gap around all sides of the door to ensure it opens and closes smoothly. As a general guide:

  • 2-3mm clearance on both sides and across the top
  • 5-10mm clearance at the bottom (critical if fitted over carpet or flooring)

Mark these measurements on the door using a pencil and a straight edge.

Step Two: Trim

Depending on the size of the job, trim your door to size using a plane or a fine-toothed saw. Remove material from each edge to keep your door balanced.

Once trimmed, lightly sand the edges for a smooth finish, removing rough areas or splinters. If you plan to paint or varnish your door, now is the time to apply a primer or sealant. 

Step Three: Hinge Placement 

When learning how to hang a door, it’s essential to understand where to fit the hinges to ensure smooth opening and closing.

Most standard internal doors only require two hinges for even weight distribution. However, you may use three if your door is heavy or tall. 

Hinge Positions 

Using a sharp pencil, mark out: 

  • 150mm (6 inches) from the top of the door.
  • 230mm (9 inches) from the bottom.

These will be the marks where you fit your hinges.

  • If a third hinge is needed, measure in the middle of the above two marks.

How to Fit Hinges on a Door

  1. At the marks, hold each hinge flat. 
  2. Using a pencil, trace around the hinge. 
  3. Create a recess by scoring your pencil outline with a chisel and hammer. Then, remove the timber to the same depth as the hinge leaf. Your hinge should sit level with the door and have no protrusions. 
  4. Drill small pilot holes and fit your door hinges with screws, ensure they’re nice and tight for a reliable finish. 

Next, it’s time to hang your door in the frame. 

Step Four: Hanging the Door

Ensuring your internal door is hanging level and sitting neatly in its opening will help prevent problems from occurring later. 

Lift the door into the frame, using wooden wedges to raise the door to the correct height.

As you position the door, check that:

  • The gaps around the door edges are even, typically 2-3mm on the sides and top, and 5-10mm at the bottom.
  • The door sits squarely in the opening without catching or binding against the frame.

Use a spirit level to check the door’s alignment in open and closed positions. 

Step Five: Fixing the Hinges to the Door

Once the door is correctly positioned, align it with the internal hinges. Fix the top hinge first, which will support most of the door’s weight and help you control its position while securing the lower hinges.

After the top hinge is attached, recheck the alignment, secure the bottom hinge, and then the middle one if you’re using three.

Step Six: Fitting the Handle and Latch 

Position the handle around 1 metre from the floor and hold the latch faceplate against the door edge, marking around it to show where it will sit.

Using a suitable drill bit, drill a hole through the edge of the door, ensuring it is deep enough to accommodate the full length of the latch mechanism.

Next, mark and drill a hole through the face of the door where the handle spindle will pass through to operate the latch.

Insert the latch into the hole, mark around the faceplate and carefully chisel out a shallow recess so the faceplate sits flush with the door edge. Secure the latch with screws.

With the latch fitted, position the internal door handle on both sides of the door, ensuring the spindle passes through the latch mechanism. 

Secure each handle in place according to the manufacturer’s instructions, making sure all screws are firmly tightened.

Position the keep plate on the door frame where the latch meets it when closed. 

Mark around the keep plate, chisel out a shallow recess so it sits flush, and fix it in place with screws.

Step Seven: Final Checks 

Keep an eye on gaps around the edge of the door as you open and close it. 

These small gaps should remain consistent, typically 2-3mm at the top and sides and 5-10mm at the bottom. 

It’s common for doors to catch in older frames, and if they’re rubbing, you may need to make minor adjustments with a plane or sandpaper.

Ensure all screws are tight to keep your internal door secure. 

Once you’ve completed these final checks, congratulations! You’ve successfully learned how to hang a door.

At Build & Plumb, we know that learning how to hang a door might seem overwhelming. But with the right tools and steps, this home improvement project is achievable for even the most novice DIYer. 

Whether fixing a single door or completing a thorough renovation, a properly fitted internal door enhances your space’s appearance and functionality. If you’re ready for another project, look to us for quality tools, materials and expert advice — we’re on hand to help you get the job done!

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