What are concealed hinges called?
Concealed hinges—also called invisible, hidden and European—are used on entry and interior doors, cabinets and furniture. They've been around for a long time. Soss, a well-known brand, has been making them for more than 100 years.
Are piano hinges stronger than regular hinges?
If a shed or barn door is to be installed, heavy duty piano hinges are a sure bet for unparalleled strength, endurance and longevity. A heavy-duty piano hinge will prove to be much stronger than shorter, multiple hinges of a different variety since the piano hinge will run the full length of the door.