| Topic | NFPA 80 (USA) | IS 3614:2021 (India) | Common Points | Key Differences |
| Scope | Covers fire doors, shutters, dampers | Covers fire doors, doorsets, frames, sliding & rolling shutters | Both regulate fire door safety | IS has broader scope; NFPA includes dampers |
| Fire Rating | Integrity only | Integrity + Insulation (min 30 min) | Both require integrity testing | IS requires insulation; NFPA does not |
| Vision Panel | Allowed per listing | Strict size limits (0.12m² / 0.06m²) | Both allow only tested glazing | IS has strict limits; NFPA flexible |
| Hardware | Listed & labeled
mandatory |
Hardware must be supplied & certified by door manufacturer | Both require certified hardware | IS shifts liability to door manufacturer |
| Undercut | Approx 19 mm allowed | 19 mm
floor; 9 mm on sill |
Both similar limits | IS defines sill-specific limits |
| Intumescent | Only if required by listing | Mandatory for insulated doors; Smoke seals required | Both allow seals | IS makes intumescent seals compulsory |
| Frames | Labelled frames; per listing | Min 1.2 mm steel; max depth 350 mm | Both need approved frames | IS has detailed frame specifications |
| Inspection | Annual
mandatory |
No fixed annual inspection clause | Both require maintenance | NFPA mandates annual inspection |
- sales@sehgaldoors.com
- +91 9891 139441
- Products
Fire rated
Doors
Glazed
Fire Doors
Fire resistant
Glazing Partition
Fire
Curtain
Water repallant
canvas
Hollow Metal
pressed Doors
Pressed Steel
Door Frames
Acoustic Metal
Doors
Acoustic Dry
Wall Panel
Bullet proof
Doors
Blast Resistant
Doors
Scientific
Doors
Residential
Doors
Fire Hose
Cabinet
Hatch/ Trap
Doors
Sliding
Doors
Panic
Bar