How about building a secret room hidden behind a door that's masquerading as a bookcase—just like in the movies? Not sure how to build the entrance? Well, just buy a kit. These bookcase doors from Woodfold Manufacturing are perfect for disguising the secret entrance. The bifold-style doors look like a typical bookcase when they’re closed. In fact, you can even load up the shelves with 500 lbs. of books or knickknacks. The doors slide open along a steel roller system at the top and the bottom to reveal the secret room. Each bookcase door has a fixed middle shelf and four adjustable shelves. The doors are available in hardwood veneers, MDF or vinyl-lam. Bookcase sizes range from 36in. to 66in.wide and up to 96in. high. Order them directly from the manufacturer. The system, weighing 400 lbs., will show up on a single pallet. Prices start at $2,200 (plus shipping) for the entire system.ncG1vNJzZmivp6x7p63MoqOyoJGjsbq5wKdlnKedZLmqv9NomZ6Zpam2p8HLZpmop5uYrrSx0mawqK2coXq4rc2tZKKmXa68tr6Moaauq5Vk