The first time I searched for pre-made TD doors I could only find Vintage Technologies as a supplier. Yesterday I searched TNTTT again and noticed Challenger Doors mentioned. Are there any other sources around that people have tried and liked? The big concern I hear from buyers of pre-made doors are that the windows are made such that the bottom window can slide up to open but the top window is fixed in place. Since the standard TD design is to have the door low enough to sit down backwards onto the mattress while getting in it seems that leaving a lower open window during a surprise rain shower could lead to some seriously damp bedding. Seems to me that if the top window could be left open and you had some sort of rain deflector over the window like the drip edge people put over their doors it would solve this problem.
Lou