What are the most common type of hinges used to hang internal doors?

The most common type of hinges used to hang internal doors are the ball bearing hinges (J9500). The ball bearing hinges come in three different sizes; 76mm x 50mm, 76mm x 102mm and 102mm x 102mm.

Ball bearing hinges are available in four different finishes; Polished stainless steel, satin stainless steel, Black and Electro brass plate.

102mm x 102mm and the 102mm x 76mm ball bearing hinges are both fully tested to BSEN 1935:2001 grade 13, 1 hour fire tested.