Fire Doors
Hollow Metal Shaft Doors
Heavy-duty hollow metal doors for lift shafts, stairwells and utility risers. Prevents vertical fire propagation in critical circulation zones.
- Orientation
- Single Leaf
- Integrity
- Up to 120 min
How it works
Protecting the firefighting shaft
Hollow metal shaft doors separate the fireman’s lift, protected lobby and staircase so vertical shafts remain tenable for responders while limiting fire spread between floors.
| Shutter | 0.8–1.6 mm steel |
|---|---|
| Frame | 1.2–1.8 mm steel |
| Infill | Honeycomb |
| Leaf thickness | 46 mm |
| Integrity | Up to 120 minutes |
| Application | Lift / stair / utility shafts |
| Standard | IS 3614:2021 |
| Code driver | NBCS firefighting shaft |
| Testing | CBRI tested |
| Orientation | Typically single leaf |
| Finish | Powder coated |
| Hardware | As specified / access control ready |
• Specs
Specification
- Shutter
- 0.8–1.6 mm
- Frame
- 1.2–1.8 mm
- Infill
- Honeycomb
- Thickness
- 46 mm
- Rating
- Up to 120 min
Customisation
Manufactured to design size. Vision panels available for commercial applications. Hardware supplied as specified by the customer. Six standard colours in stock; custom colours available for large-volume orders.
• Compliance
NBCS 2026, Part F
Fire and Life Safety clauses that drive door specification.
On mandatory exit protection
Part F, Clause 2.22, Note 2
“Fire doors in exits should have fire rating as required in this Part to meet the requirement of integrity and stability; and the minimum insulation criteria should be 30 min.”
On firefighting shafts
Part F, Clause 2.24
“An enclosed shaft having a protected area of 120 min fire resistance rating comprising a protected lobby, staircase, and fireman's lift... The firefighting shaft should be equipped with 120 min fire doors.”
On vertical openings and compartmentation
Part F, Clause 3.5.4.6
“Every vertical opening between the floors of a building should be suitably enclosed or protected, as necessary, to provide reasonable safety to the occupants... and limitation of damage to the building and its contents.”
• Explore
Other fire door systems
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