FIRE RATED DOORS
Protect commercial buildings with fire rated doors in metal and wood designed to meet code requirements and improve occupant safety.

- Fire ratings up to 3 hours
- Commercial wood and hollow metal fire doors
- Fire-rated glass kits available
- Hardware prep completed in-house
- Single and double door openings
- Commercial-grade durability and compliance
Commercial fire-rated doors play a critical role in helping slow the spread of fire and smoke throughout a building. Fire-rated openings are commonly used in stairwells, corridors, mechanical rooms, exit pathways, schools, hospitals, apartment buildings, warehouses, and other commercial facilities.
Doors Unlimited Inc. supplies both commercial fire-rated wood doors and fire-rated hollow metal doors with options for glass kits, louvers, hardware prep, and complete door assemblies.
Our team provides in-house fabrication and hardware preparation to help ensure your fire-rated openings arrive ready for installation.
Fire Ratings for Commercial Doors
Depending on your project requirements, these are the available ratings.
Common Fire Rating
- 20 Minute Fire Rated
- 60 Minute Fire Rated
- 90 Minute Fire Rated
Ratings depend on the opening type, wall construction, hardware, glass, and local code requirements.

Commercial Fire Rated Wood Doors
Fire-rated wood doors combine safety, durability, and appearance for commercial interiors. These doors are commonly used in offices, schools, apartments, and healthcare facilities where a warmer architectural look is preferred.
Available options may include:
- Fire-rated glass lite kits
- Commercial hardware prep
- Single and pair openings
- Multiple veneer and finish options
- Custom fabrication and modifications
Wood fire doors are available in multiple fire ratings depending on the application requirements.
Commercial Fire Rated Metal Doors
Fire-rated hollow metal doors provide superior durability and long-term performance for demanding commercial and industrial environments.
These doors are commonly used for:
- Stairwells
- Mechanical rooms
- Service corridors
- Exterior openings
- Industrial buildings
Available options may include:
- Fire-rated glass kits
- Panic hardware prep
- Hollow metal frames
- Louvers where permitted
- Smoke seal options

Requirements & Safety
Commercial fire-rated doors must use approved hardware and self-latching devices to maintain code compliance.
Important Requirements
- Fire doors must be self-closing
- Approved hinges and closers are required
- Fire-rated hardware must be compatible with the assembly
- Certain hold-open devices and deadbolts may not be permitted
- Fire-rated glass must meet UL or approved fire testing standards
Doors Unlimited Inc. can help ensure the proper hardware and door configuration are selected for your opening.
In-House Fabrication
Doors Unlimited Inc. is equipped with a full-service welding and fabrication shop, allowing us to provide complete commercial door solutions.
We can assist with:
- Hardware prep
- Glass kit installation
- Louvers and ventilation options
- Retrofit and replacement doors
- Hollow metal frames
- Sidelites, borrowed lites, and transoms
- Custom commercial openings
Our in-house fabrication capabilities help reduce lead times and provide job-ready door solutions.
What is a fire-rated door?
A fire-rated door is designed to slow the spread of fire and smoke for a specified amount of time during a fire event.
What fire ratings are available?
Commercial fire-rated doors are commonly available in 20, 60, 90 minute.
Do fire-rated doors require special hardware?
Yes. Fire-rated openings require approved hardware including closers, hinges, locks, and exit devices.
Can fire-rated doors have glass?
Yes. Fire-rated glass kits are available depending on the opening and fire rating requirements.
Can you replace existing fire-rated doors?
Yes. We regularly provide retrofit and replacement fire-rated doors for existing commercial openings.