When is a door not just a door? When it folds down to reveal a full-sized ping pong table, complete with chalkboard functionality. Hit the jump for a couple more pictures.

..ready to build in ping pong table door. raising the handle allows you to swing the table and fasten it in position. Enjoy all the benefits of ping pong playing in your place, no matter how big it is. A conventional door connects rooms, this door connects people

[via Tekenstein]