Custom Service Hardware, has created a ready-to-ship hidden door. The CSH hidden bookcase door comes ready to fit in 36" door opening. The door comes with the hinges and necessary hardware to install and the best part it's made in America. Our doors are in stock which means no lead or wait time, so order the door on Monday and it will be on a truck within 24 hours. The Invisidoor can be installed as either an inswing or outswing door and are made from cherry, maple, or red oak. You can find the Invisidoor here: https://www.cshardware.com/hidden-doo...