Install some flashing and a doorframe into the door cavity.
Step 2
Measure and calculate the size of your doors. My bottom set are 1.2m high which is a good leaning height, and the top ones around 750mm high.
Step 3
Measure and cut timber. I've used 150mm x 50mm timber which in retrospect is a little over-the-top but it looks great. You could go with 100 x 50mm, no trouble.
Step 4
Cut a halving joint at each end of each piece of timber. This is an overlapping joint and the easiest way to join the timbers while maintaining strength. I set my mitre saw to the depth of 25mm which is half the thickness of my timber. Set the saw up on a stand outside because of all the dust that will be produced.
Step 5
Measure and cut a piece of plywood to fit into the doorway. Mount the frames on to the plywood and paint.
Step 6
Attach strap hinges, two for each door. Then mount the whole panel on to the doorway.
Step 7
Cut between the doors horizontally then repeat vertically. Finish each door off using a plane or sander. It may be necessary to remove each door.
Step 8
Paint the cut areas where the bare timber is showing with at least three coats of paint.
Step 9
Attach a floor drop bolt to one of the bottom doors and sliding bolts to the rest. Attach a strap latch and padlock to the front.