Doors are part of our daily routine, opening and closing so naturally that we rarely consider how they work. That is why, when discussing innovations in their design, many might think, "If it ain't ...

A type of butt hinge, it has hidden bearings between the knuckles of the hinge, which reduce friction and help doors operate more smoothly. Ball bearing hinges are considered heavy-duty and durable, ...

Dear James: In my house, which is rather old, the door hinges are stiff, and the cabinets don’t close well. I need to install new ones. Regular lubrication can definitely help extend the life somewhat ...