Minecraft wiki entry for Furniture, associated text: Depending on where you want your fridge, place the first iron door on the inner side of a block to the left or right of where you want your fridge. Then place the other iron door on the other side, leaving one blank block in between. Third, place your chest, and the last door in front of the chest. On top, place the stone slab. Finally place the button so you can open one of the 3 doors, whichever works for your room layout. To make a corner fridge with this method, you will only need 2 iron doors, with the layout like so: