How to hang an internal door
If you need to replace an inner door, it is important to take great care to ensure your new door opens and closes smoothly with the requisite gaps between door and frame. This guide walks you through the process.
What you'll need:
Two wooden 'clearance' wedges
Before getting to work it is useful to familiarise yourself with some terminology: the top and bottom of the door are called the top and bottom 'rail' respectively. The side with the handle is the 'lock stile' and the hinge side is the 'butt stile'.
A brand new door will come with protective 'horns' on the butt edges. Lay the door on its lock stile, saw off the horns and plane the top and bottom rail smooth.
Measure the door for width and, leaving 3mm for clearance (on both sides of the frame), mark both the top and bottom of the lock stile. Join the marks with a line.
Lay the door on its butt stile and plane the lock stile to the line, ensuring a slight bevel. If you need to take more than 6mm off, saw the lock stile first.
Use clearance wedges to support the door in its frame, 6mm from the floor. Mark the top rail for height,leaving 3mm clearance.
Plane the top rail to the line you have just drawn.
Support the door in the frame (using wedges) and mark the positions where the hinges must go. If the frame is new and has no recesses, position your hinges 150mm from the top and 200mm from the bottom of your door.
After fitting your hinges, support the door in its open position (using wedges), and press the unattached part of the hinges into their recesses. Drill thread holes and drive in the screws.
Remove your wedges and the door should open and close smoothly.
If the door springs open, the hinge recesses are probably too deep. Remove the door and pack the recesses with cardboard.
If the door leans away from the frame, the hinge recesses may be too shallow. Remove the door and chisel the recesses.