We always thought we’d make our under stairs area look neater by putting a cupboard door in. Now we have a window of opportunity with most other indoor jobs done so here we go. Thought we’d make our own to get the size right to fit the space and have a very large door to fit a human in easily. It’s about 700mm wide. I bought some 6mm oak boards. Thought we’d stick them to some mdf to make a door and build a frame. Is this a ridiculous idea? Will this door make up work? If so, would 20mm mdf work or thinner? And should we face the door on both sides for balance? Any joiners willing to offer advice please? And please feel free to shoot the idea down if it’s rubbish! Thanks