Steel Frames for Doors — IS 4351 (2024) Testing

IS 4351:2024 covers steel frames for doors and specifies requirements intended to ensure conformity of the frames with the applicable Indian Standard. Manufacturers should assess their product against the complete requirements of the current standard before seeking BIS certification.

Yes. BIS has issued a Product Manual for IS 4351:2024 – Steel Frames for Doors under Scheme-I of the BIS Conformity Assessment Regulations, 2018. The manual provides guidance on sampling, grouping, testing and certification procedures for applicants and licensees.

IS 4351:2003 was revised as IS 4351:2024. BIS specified 9 April 2025 as the implementation date for the revised standard, after which the earlier standard was withdrawn.

One significant revision identified by BIS is the modification of the thickness requirements for raw-material steel under Clause 5 and Table 1. Existing licensees were required to address the revised requirements as part of implementation of the new standard.

According to the BIS Product Manual, the indicated sample quantity is one sample, with additional material required for the powder-coating finish test. The exact sampling and testing requirements should be followed as specified in the applicable BIS Product Manual.

Testing is conducted according to the applicable requirements of IS 4351:2024 and its BIS Product Manual. The certification framework includes evaluation of relevant product and material characteristics, while powder-coating finish requirements may involve additional test material as specified by BIS.

Manufacturers producing steel frames for doors covered by the standard should evaluate their products for compliance with the current BIS requirements. Businesses applying for or maintaining BIS certification need to follow the applicable provisions of IS 4351:2024 and the corresponding certification procedures.

Certko can assist manufacturers and suppliers with IS 4351:2024 testing and compliance support, including coordination of applicable product testing and guidance for BIS certification requirements. Proper testing helps businesses assess conformity with the current standard before proceeding with certification activities.