Find two doors that you love, add trim, and make a corner cabinet. Great idea @ House Remodel Ideas it would be nice to add a shoe rack or boot rack behind those doors, then you have more closet space.
vintage doors mounted on barn door hardware. This could be done in place of the french doors we have in our office. It would really save space and make the room more usable (think external pocket doors).
Use to seperate the formal dining room from kitchen/formal living room. Decorating in small places, to save space install old doors on rollers. Vintage chic look and easy DIY project Works great for any size space too