What materials are continuous hinges typically made of according to this IS code?

They are typically manufactured from mild steel, brass, aluminum alloy, or stainless steel sheets.

How is the size of a piano hinge designated?

It is designated by its overall length, the total width when fully open, and the thickness of the flap.

What is the recommended material for the hinge pin?

The pin is generally made from mild steel wire (IS 280), hard drawn brass wire, or stainless steel wire, depending on the flap material.

IS 3818

: 1992

Continuous (Piano) hinges -Specification

CurrentSpecializedSpecificationArchitectural · Builder Hardware

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This standard specifies the requirements regarding materials, dimensions, manufacture, and finish of continuous (piano) hinges used primarily in cabinet making, furniture, and general building joinery.

Continuous (Piano) hinges -Specification

Quick Reference Values

length tolerance± 2 mm

width tolerance± 1 mm

standard lengthsUp to 2000 mm

Practical Notes

Continuous hinges distribute weight and stress evenly along the full length of a door or lid, making them ideal for thin materials.

Ensure the pin material is compatible with the flap material (e.g., stainless steel pins with aluminum flaps) to prevent galvanic corrosion in humid environments.

Screws should be countersunk perfectly flush to allow the hinge to close seamlessly.