If, like me, you've never set foot in a Costco warehouse store, prepare to be overwhelmed. The warehouse is vast, and the layout was unlike any I'd experienced before. Upon entering, it looked a ...

It's a door for groceries — simply open and slide items inside. Having a Costco door can ... it doesn't have to be limited to just Costco. A Costco door's usefulness depends on the layout of the home.