The door is 32" long and 26" tall. I have used a full length hinge on the door to support it and corner braces at each corner. It works quit nicely and has No sagging in it when open.

I have routered out an area and installed a latch in the door. It works quite well and holds the door shut when it is closed.

The door works well and opens easy and has no sag in it thanks to the full length hinge,& corner braces.