BIS Certification for Timber Door Window and Ventilator Frames IS 4021:1995 - Jain Wood Industries, Kharkhoda, Sonepat, Haryana, Standphill India

Standphill India successfully completed BIS ISI Mark certification under IS 4021:1995 for Jain Wood Industries - a timber door, window and ventilator frame manufacturer based at Khewat No. 399, Khata No. 457, Killa No. 48/1/1, Ferozpur Bangar, Kharkhoda, Sonepat, Haryana 131402. The BIS licence bearing number 853016**** was officially granted. Standphill India managed the complete certification process from factory assessment to final licence grant.

Jain Wood Industries is a timber door, window and ventilator frame manufacturer operating from Ferozpur Bangar, Kharkhoda - a locality in Sonepat district, Haryana, within the extended Delhi NCR manufacturing belt. Kharkhoda's position between Sonepat and the national capital makes it a natural production base for construction material manufacturers supplying one of India's largest and most active building markets. Delhi NCR's residential, commercial, and infrastructure construction activity generates sustained demand for certified timber framing components - and Jain Wood Industries serves this demand with BIS ISI Mark certified product under IS 4021:1995.

Timber door and window frames are structural components integrated permanently into a building's fabric. A frame that is undersized in section, insufficiently seasoned, made from an unsuitable timber species, or poorly jointed creates ongoing problems - warping, shrinkage, poor door and window fitment, and ultimately compromised building envelope performance. IS 4021:1995 BIS certification is the builder's and architect's assurance that the frames they are installing meet India's defined standards for timber quality, dimensional accuracy, moisture content, and constructional integrity. Standphill India has certified two manufacturers in the Kharkhoda cluster - Agni Suraksha for fire doors under IS 3614:2021, and now Jain Wood Industries for timber frames under IS 4021:1995 - reflecting growing BIS compliance momentum in Sonepat's building products manufacturing sector.

IS 4021:1995 is the Bureau of Indian Standards mandatory specification for timber door, window and ventilator frames - covering permissible timber species, moisture content requirements, dimensional specifications for frame sections (styles, heads, sills, and transoms), jointing requirements including haunched mortise and tenon joints, surface finish requirements, and marking. The standard ensures that certified timber frames are manufactured from appropriate seasoned timber, to correct dimensions and joint construction, for reliable long-term performance as integrated building components.

BIS certification under IS 4021:1995 is mandatory. Government construction projects, CPWD specifications, PMAY housing schemes, institutional building procurement, and regulated real estate developers mandate BIS ISI Mark certified timber frames as a standard materials specification.

For full details - BIS Certification for Timber Door, Window and Ventilator Frames - IS 4021:1995

Jain Wood Industries is certified. Their timber door, window and ventilator frames carry the ISI Mark under IS 4021:1995 - legally cleared for every government project, CPWD tender, PMAY housing scheme, and institutional construction buyer that mandates certified timber frames.

Without a valid IS 4021:1995 BIS licence - government construction contracts will reject your frames at the material inspection stage. CPWD and PWD-specified projects mandate ISI Mark certified timber frames by specification. Real estate developers working under RERA regulatory oversight increasingly specify BIS-certified building materials as a quality and liability management standard. And uncertified timber frames face BIS enforcement action at any point in the supply chain.

Delhi NCR is one of the world's largest active construction markets. The builders, contractors, and developers operating here know the difference between certified and uncertified. Make sure your product is on the right side of that line.

Contact Standphill India today for a free IS 4021:1995 consultation.

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