How to fit an internal door?

How to fit an internal door

It might sound obvious, but measuring the opening in which you are working, or an existing interior door – if it’s a good fit – is the best place to start.

Trimming to size

The type of panel door you choose will determine how much you can trim off. Make sure it has enough tolerance to achieve the perfect fit.

Offer up your new door to the frame to see if it needs adjustment and plane to size, before sanding for a smooth finish. Ideally, you want a two millimetre gap along the top and either side, whilst the space you leave at the bottom will depend on the thickness of your flooring.

If you are working with an existing frame and it isn’t square, this can make your job much more difficult. Instead, you might want to consider buying one of JELD-WEN’s wooden internal doors ready hung in a frame, to reduce problems and fitting time.

Hanging the door

Check your new hinges fit the spaces available on an existing frame and if not, mark where you want them to sit and chisel a recess.

Secure each hinge to the frame with one screw in the centre, making sure the knuckle sticks out from the edge. Now prop up the door using wedges to create the correct gap at the bottom and mark where the hinges sit.

Unscrew the hinges from the frame and lay them against the door edge, in line with your pencil marks. Draw around them and chisel the outlined area to the same depth as the hinge flap. Check you have achieved a flush fit and insert one screw in the centre.

Support the door on the wedges again and fix the hinge flaps to the frame. Finally, ensure the door moves smoothly before adding the remaining screws.

Top tip: Moulded, real wood veneer, foil, hardboard and MDF hollowcore internal doors should have two hinges. Feature and primed doors need three.

Adding a handle

If you are working with an existing keep, measure its distance from the floor and mark the same spot on the door – this is where the latch needs to sit.

Offer the latch up to your drill bit and record its depth using masking tape, before drilling into the door to the required point and removing any debris. Insert the latch and draw around its perimeter, then chisel the area inside the pencil line so it sits flush.

Hold the latch in position on the outside of the door and make a pencil mark through the hole for the handle spindle. Repeat on the other side, then drill a hole.

Insert the latch and spindle before screwing the door handle into place. Job done!



If you would like more information about finishing your JELD-WEN internal doors, visit our guide to finishing your products. (Hyperlink)

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