The opening through this door space is an odd size. Normal a door is 760 mm wide at the smallest, height 1920 ish.
Here is the old door in white and one that I have got from DIY in Middlesbrough.
Right, time to measure up and start making the new door fit. These doors are boarded and hollow with a stuffing inside. The lock and handle is usually marked on the one side so make sure you have the right side for the hinges. I am going to cut and trim the side that the door will hang from, leaving the block for the lock and handle on the other side.
It looks like this door has the lock and handle block on both sides of the door because there is the block fixed to the trim I’ve just cut.
Now that I have removed the laminate from the edging trim that existed on the door, I am now going to use these to fit back in to make the edging of the door with wood glue & screws, predrilling so as not to split the wood.
There, having wiped down with a damp sponge removed the excess glue the door is now made to size.
Time to fit and hang it.
Fitted the door handle and yes, this door does have a block on both sides, but not all do, so always check which side the lock is on it will say on the top of the door frame.