Architectural hinges are designed for strength

These features, claims FDB, demonstrates a high degree of compliance with EN1935 having gained test performance from grades 1 to 14 and with CERTIFIRE approvals. The hinges are suitable for applications such as department stores, schools, bank doors, offices and residential installations. These situations of course include external doors (circa 160kg), fire doors, internal doors and lightweight furniture, cupboards and wardrobes. Variants within the FDB offering include the Loadmaster which is recommended for adjusted door weights up to and beyond 160kg, fitted with or without door closer devices, and annual usage up to 150,000 cycles. Dual bearing hinges – a hybrid five knuckle hinge incorporating two styles of bearing, plain knuckle bearings at the centre, and concealed or shrouded polymer bearings at the outer knuckle load bearing faces. Recommended for adjusted door weights up to 120kg, doors with or without all types of door closer and annual usage up to 200,000 cycles, they are particularly suited for metal doorset applications. Where low door weight and low frequency of use are applicable, plain knuckle hinges are suitable for use on a wide range of applications, including high quality joinery, such as cabinet and cupboard doors, through to internal dwelling doors.