What are the standard sizes available for rising butt hinges as per IS 9106?

The standard specifies three lengths: 75 mm, 100 mm, and 125 mm (Table 1).

What materials are specified for manufacturing these hinges?

The hinges can be made from mild steel, cold-rolled brass sheet, or wrought aluminium alloy sheet/strips (Clause 3).

How is a left-hand or right-hand hinge defined?

For a door opening towards you, a right-hand hinge is on the right jamb and a left-hand hinge is on the left jamb (Clause 5.4).

How much does a 100 mm door hinge rise when opened?

A 100 mm hinge is designed to provide a minimum rise of 10 mm (Table 1).

IS 9106

: 1979

Specification for rising butt hinges

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This standard specifies the requirements for materials, dimensions, manufacture, finish, and marking for rising butt hinges. It covers hinges made of mild steel, brass, and aluminium in standard sizes of 75, 100, and 125 mm, intended for general building purposes.

Specification for rising butt hinges

Quick Reference Values

Standard lengths of hinges75, 100, and 125 mm

Thickness of flap for 100 mm steel hinge2.50 mm

Thickness of flap for 100 mm brass/aluminium hinge3.15 mm

Width of flap for 100 mm hinge35 mm

Minimum rise for 100 mm hinge10 mm

Diameter of pin for 100 mm hinge6.0 mm

Practical Notes

Rising butt hinges are 'handed' (left-hand or right-hand) and must be specified correctly at the time of procurement based on the door swing direction.

The primary function of the 'rise' is to allow a door to lift slightly as it opens, providing clearance over a thick carpet or an uneven floor.

Ensure that the screws used for fixing the hinges are compatible with the hinge material to prevent galvanic corrosion.