What is the primary focus of IS 4204?

It outlines the functional and dimensional requirements to ensure proper ergonomic posture for draftsmen.

Are footrests required for drafting chairs according to this standard?

Yes, an adjustable footrest or footring is necessary to support the legs due to the elevated seat height.

Does this standard dictate the materials to be used?

It focuses primarily on dimensions, stability, and adjustability, allowing flexibility in material choice provided structural integrity is met.

IS 4204

: 1974

Functional requirements for drafting chairs

CurrentRareSpecificationGeneral · Furniture

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This standard specifies the functional and dimensional requirements for drafting chairs to ensure ergonomic support, adjustability, and comfort for draftsmen working at elevated drawing boards.

Functional requirements for drafting chairs

Quick Reference Values

Typical seat height adjustment range550 mm to 750 mm

Minimum seat width400 mm

Minimum seat depth380 mm

Practical Notes

Drafting chairs require higher height adjustment ranges than standard office chairs to accommodate drafting table heights.

A circular or adjustable footring is critical for drafting chairs to prevent thigh compression and leg fatigue.