How to hang an internal door

We understand that replacing and hanging an internal door may sound like a big task, but worry not! Our helpful step-by-step guide will have you hanging a new door in no time.

In this helpful guide, we are going to show you how to:

  • Measure for your replacement door
  • Trim your new door to size
  • Remove your old door
  • Fit your new door

 

1. How to measure for a replacement door

Items you will need:

  • Tape measure
  • Pencil
  • Paper

If you have an existing door to replace, measuring that door will give you the size details you need to purchase the replacement. White down the width, thickness and height. 

Choose a door that matches closest to your measurements, rounding up, not down. For example, if you measured 1978mm (high) x 757mm (wide) x 35mm (thick), rounded up, the nearest standard door size would be 1981mm x 762mm x 35mm.

Please note we recommend trimming no more than 12mm from the width (6mm from each side) and 20mm from the height (10mm from top and bottom) of our doors. If you have any questions, please call us on 01246 813131 and we will be happy to help.

If you have a frame with no door, measure the height and the width of the inside of the frame. The height is measured at two points (left and right) and the width is measured in three points (top, middle and bottom). Use the largest of both sizes to determine what size door is required, and again, round up to select the nearest standard door size required.

 

2. How to trim your door down to size

Items you will need:

  • Electric or manual planer
  • Tape measure
  • 2 pence piece
  • Pencil
  • Work Bench (large enough to fit the door)
  • Sand paper

If the old door was a good fit use it as a guide for the new one. Lay the old one on top of the new one and pencil mark around it so you can see where to cut any excess of the new door. If you don’t have the old door to use as a guide or perhaps the old door fit terribly, you’ll want to use the frame to measure the fit of the new door. For this, it’s easier to have two people – one on each side of the door. Hold the door up against the frame and run a pencil line down the door against the frame on the lock side to mark the trimming line.

The door needs to have a gap beneath it that is enough to ensure your floor covering fits under the door. We recommend a minimum of 2mm  – keep this in mind when measuring the fit. Use a 2 pence piece to measure the 2mm. We also recommend a 2mm gap down each side and across the top. Use the 2 pence piece to measure these. 

Place the door on your work bench and use an electric or manual planer to shave off equal amounts from each side, using your pencil marks as a guide. Shave off a little at a time, ensuring you stop to check the fit after each removal. Finally, smooth any sharp edges with sand paper.

Please note we recommend trimming no more than 12mm from the width (6mm from each side) and 20mm from the height (10mm from top and bottom) of our doors. If you have any questions, please call us on 01246 813131 and we will be happy to help.

If you have to remove a large amount of excess wood from the height, cut from both the top and bottom of the door, measuring equal amounts, so you keep the symmetry of the panels. 

 

3. How to remove your old door

Items you will need:

  • Screwdriver
  • Small wooden wedges

To remove your old internal door, first use the small wooden wedges to prop the door up at the bottom. This ensures the door doesn’t drop when you start unscrewing the hinges. 

If your screws have been painted over, use a screwdriver to scrape out or knock off the paint. This ensures that the screwdriver will fit into the screw head perfectly.

Start with the screws at the bottom, on the door frame side. We recommend for you to have a second helper available to hold the door steady as you start removing the screws. Once the screws have been removed from the bottom hinges on the door frame side, do the same to the top hinges. The door should now be free from the frame and can be carefully discarded. 

 

4. How to fit your new door

Items you will need:

  • Pencil
  • Chisel
  • Hammer
  • Screwdriver
  • Small wooden wedges

Firstly, you will need to ensure that your new hinges fit into the old cutouts in the frame. Simply place your new hinges into the cutouts to check the fit. If they are larger, use a chisel and hammer to carefully chisel out some of the wood from the frame to ensure a good fit.

Hold up the new door into the frame opening and mark on the door with a pencil the position of the frame hinge cutouts. 

Place your new door on your work bench. Hold one of the hinge flaps on the side of the door in-line with where you marked your hinge lines (previous step) and draw around the hinge flap with a pencil. With a chisel and a mallet, tap around the outline you’ve just drawn. Make sure the bevel (sloped edge) of the chisel is facing towards the waste wood. Next, make a series of cuts into the wood, horizontally across the width of the hinge recess to be cut out, at 5mm intervals to the same depth as the flap. Then knock out the excess wood using the chisel length ways against the cuts you’ve just made.  Chisel out enough so that the hinge plate is flush with the door edge. 

It is at this stage we recommend you finish your door (prior to you fitting your hinges). Please read our ARTICLE on how to finish a door.

Once the door has been finished (either with oil, varnish or paint of your choice), it is time to attach to hinges. Drill a hole using a drill bit that is slightly smaller than the screw diameter and simply screw the hinges in place. 

Hold the door up to the frame and use the wedges to hold the door upright and straight. Re recommend a second helper here to hold the door whilst you screw the hinge plates to the frame. To begin with, only fix one screw into the top of each hinge. With the first screws in place, check the door opens and closes easily and fluidly, so it doesn’t stick or resist, and if you’re happy, fix the rest of the screws in.

Now everything’s in place, check again that you are happy with how easily the door opens. If the door is not hanging correctly and is rubbing around the edges, try loosening the screws a little, as the tightness will effect the door movement. If the door looks like it’s spaced evenly in the frame, except in one area where it catches, you may need to remove the door again and plane or sand off a bit more wood to resolve the issue.

 

 

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