What This Article Covers Concealed hinges -- sometimes called invisible hinges or European-style hinges -- are fully mortised into both the door edge and the frame so that no knuckle, barrel, or pin i...

Why Concealed Hinges Punish Guesswork at the Door Prep Stage A fully concealed hinge is invisible when the door is closed. That clean, uninterrupted edge profile is exactly why architects specify them...