{"id":3556,"date":"2025-12-04T15:18:59","date_gmt":"2025-12-04T15:18:59","guid":{"rendered":"https:\/\/www.sehgaldoor.com\/blog\/?p=3556"},"modified":"2026-02-20T08:23:52","modified_gmt":"2026-02-20T08:23:52","slug":"fire-door-standards-comparison-nfpa-80-vs-is-36142021","status":"publish","type":"post","link":"https:\/\/www.sehgaldoor.com\/blog\/fire-door-standards-comparison-nfpa-80-vs-is-36142021\/","title":{"rendered":"Fire Door Standards Comparison NFPA 80 vs IS 3614:2021"},"content":{"rendered":"
\n\n\n\n\n\n\n\n\n\n\n\n
Topic<\/td>\nNFPA 80 (USA)<\/td>\nIS 3614:2021 (India)<\/td>\nCommon Points<\/td>\nKey Differences<\/td>\n<\/tr>\n
Scope<\/td>\nCovers fire doors, shutters, dampers<\/td>\nCovers fire doors, doorsets, frames, sliding & rolling shutters<\/td>\nBoth regulate fire door safety<\/td>\nIS has broader scope; NFPA includes dampers<\/td>\n<\/tr>\n
Fire Rating<\/td>\nIntegrity only<\/td>\nIntegrity + Insulation (min 30 min)<\/td>\nBoth require integrity testing<\/td>\nIS requires insulation; NFPA does not<\/td>\n<\/tr>\n
Vision Panel<\/td>\nAllowed per listing<\/td>\nStrict size limits (0.12m² \/ 0.06m²)<\/td>\nBoth allow only tested glazing<\/td>\nIS has strict limits; NFPA flexible<\/td>\n<\/tr>\n
Hardware<\/td>\nListed & labeled <\/p>\n

mandatory<\/p>\n<\/td>\n

Hardware must be supplied & certified by door manufacturer<\/td>\nBoth require certified hardware<\/td>\nIS shifts liability to door manufacturer<\/td>\n<\/tr>\n
Undercut<\/td>\nApprox 19 mm allowed<\/td>\n19 mm <\/p>\n

floor; 9 mm on sill<\/p>\n<\/td>\n

Both similar limits<\/td>\nIS defines sill-specific limits<\/td>\n<\/tr>\n
Intumescent <\/td>\nOnly if required by listing<\/td>\nMandatory for insulated doors; Smoke seals required<\/td>\nBoth allow seals<\/td>\nIS makes intumescent seals compulsory<\/td>\n<\/tr>\n
Frames<\/td>\nLabelled frames; per listing<\/td>\nMin 1.2 mm steel; max depth 350 mm<\/td>\nBoth need approved frames<\/td>\nIS has detailed frame specifications<\/td>\n<\/tr>\n
Inspection<\/td>\nAnnual <\/p>\n

mandatory<\/p>\n<\/td>\n

No fixed annual inspection clause<\/td>\nBoth require maintenance<\/td>\nNFPA mandates annual inspection<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n