A popular type of door hinge. Ball bearing hinges have always been very popular for their smooth operation, durability, long lasting design and ability to carry heavier loads than washered hinges. For standard internal residential doors a pair of hinges is adequate,  however fitting 3 hinges per door has its advantages. It will look aesthetically pleasing and from a practical viewpoint it helps spread the load evenly and will help to overcome twisting or warping. This can sometimes happen to doors over a period of time where heat and moisture are a factor.

One pack of self-adhesive intumescent hinge liners suitable for both FD30 and FD60 applications, unless otherwise stated. Successfully included within BS EN 1634-1:2014