Doors in your house can be sliding to reveal new rooms in your living space.

These doors are now possible thanks to a new technology called DoorDoor, which works with existing systems like door locks and security gates.

As The Verge notes, the door opens on the first floor of a house, and the user then has to unlock it with a keypad, which is easier than you might think.

But DoorDoo can also be used in an enclosed space, where the user has to physically enter their door to open it.

This is a nice idea, but we’re not going to give it much credit.

The technology itself is pretty basic.

You get a small plastic handle with a small flat plate, and a small magnet, which will stick to the handle, and then the door will open and the magnet will pull the door back.

DoorDeeres are small, and not particularly expensive, but they do require you to have a door opener, and to be able to use it at night.

If you want a door with a sliding patio door, you’ll need to install a new door-staying system.