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TRR Series

Temperature Rise Insulated Steel Doors

Made from Galvanneal Steel with A40 (ZF120) coating.
Optional G90 (ZF275) coating also available.

Our Temperature Rise Insulated Door is a fire-rated steel door specifically designed to limit the transmission of heat from one side to the other during a fire. The specially engineered core helps the non-fire side of the door stay cooler for longer and meets 250°F, 450°F, or 650°F rise ratings over 60 minutes. This makes it ideal for stairwells, corridors, and emergency exit routes in multi-story buildings.

Fire Rating:

up to 90min or 3hrs*

Thermal Rating:

R-2 to R-4**

Sound Rating:

up to STC 32

Standard Compliance:

ASTM A653-B

*Depending on specification
**Depending on chosen insulation
Inquire

Commonly Used In

Large and high-rise buildings with paths of egress as well as areas with vital equipment such as:

Stairwell Enclosures
Elevator Lobbies and Shafts
Mechanical and Electrical Rooms
Hospital and Healthcare Facilities
Educational Institutions
High-Rise Office Buildings

Key Features

Fire-Rated Performance

Built to meet fire ratings up to 90 minutes or 3 hours, helping prevent flame spread and maintain structural integrity during a fire event.

Temperature Rise Protection

Specially engineered core limits heat transfer to the non-fire side of the door, meeting 250°F, 450°F, or 650°F rise ratings over 60 minutes to protect egress paths.

Code-Compliant for Life Safety

Designed to meet IBC, NFPA 80, and UL 10C standards, making them suitable for stairwells, elevator lobbies, and rated corridors in commercial and institutional buildings.

Durability

Durable and resistant to wear, corrosion, rust, and deterioration, the galvanized steel construction withstands high moisture, chemical exposure, and harsh weather conditions.

Material Thickness Options

Our Temperature Rise Rated Doors are available in thicknesses ranging from 20 Gauge to 14 Gauge steel.
Lighter and more economical. Suitable for less demanding applications where security and durability are not a primary concern.
Sturdier and more durable. It offers better resistance to bending and denting and is suitable for areas where security is a concern but not necessarily a top priority.
One of the thickest standard materials used in the industry. Offers a very high level of security and durability.
The thickest and strongest material used in the construction of our doors. Typically used in our Weld Seam and STC series doors.

Insulated Core Options

Temperature Rise Doors are insulated with a specially engineered core.

Seam Edge Options

We offer 2 additional edge finishing options to all our steel doors. They are optional and depend on preference for added longevity or a smoother, visually pleasing finish.

Tack Seam

Our tack seamed doors offer a tack welded edge on the lock seam for added durability.  

Tack & Fill

This option offers the same tack welded edge, followed by body filling to create a smooth seamless finish.

Design Elevation Options

Whether you need visibility, air circulation or want natural light to come through, our door elevation* options allow you to meet any need or style.

* Door elevations refer to the various lite cutouts when specified by the architect.   

Doors with a lite cutout will be supplied with either a snap-in glazing kit or screw-in thermal kit, depending on specifications (glass is to be supplied and installed by others).  

See our resources page for technical information. 

Featured Projects

Alvin Curling Public School

Education
  • Scarborough, Ontario

Casino Niagara

Sports & Entertainment
  • Niagara Falls, Ontario

Casino Rama Resort

Hospitality
  • Orillia, Ontario

Janeway Childrens' Hospital

Healthcare
  • St. John's, Newfoundland

Royal Victoria Regional Health Centre

Healthcare
  • Barrie, Ontario

Rogers Centre

Sports & Entertainment
  • Toronto, Ontario

Pickering Casino Resort

Hospitality
  • Pickering, Ontario

Markdale Hospital

Healthcare
  • Markdale, Ontario

McKee Public School

Education
  • North York, Ontario

Michael Garron Hospital

Healthcare
  • Toronto, Ontario

Mount Sinai Hospital

Healthcare
  • Toronto, Ontario

NL Health Services Ambulatory Health Hub

Healthcare
  • St. John's, Newfoundland

Stephen Lewis Secondary School

Education
  • Thornhill, Ontario

Important Information and Disclaimers

Fire Rated Doors
Fire-labelled doors will be provided for those openings requiring fire protection ratings, as determined and scheduled by the architect. Such products have been tested in strict conformance with CAN4 –S105, ASTM E – 152 or NFPA 252 as listed by a nationally recognized agency having a factory inspection service, in conjunction with the Canadian Steel Door Manufacturers Association, and will be constructed as detailed in the follow–up service procedures.

Unless specified otherwise, the location of hinges, locks, exit devices, push / pull plates, closers etc. will be as per All Steel Doors 2000 standard locations. Refer to this table for our standard hinge locations or
contact us at 416-297-8500 or frontdesk@asddoors.com for more information.

All doors should be thoroughly inspected upon receipt and all discrepancies, deficiencies and/or damages must be reported in writing to All Steel Doors 2000 within 3 days of receipt of shipment. All shipments are FOB All Steel Doors 2000. All damages incurred during shipment to be claimed by the distributor directly to the freight carrier. Doors must be removed from any wrapping or covering and be stored in a protected location in an upright position, on wood sills spaced with blocking to permit air circulation.
Install doors and hardware in accordance with hardware templates. Adjust operable parts for correct clearances and functions. For guidance on installation and storage of frames and doors, see the CSDMA’s recommendation guide.

Technical Resources

Click on the image to open the document.

Door Handing
Chart

Standard Hinge
Location Chart

Snap-In Lite Kit
Detail

Warranty

All doors shall be guaranteed to be free of defects in material and workmanship for 1 year. There are no warranties expressed or implied, which extend beyond those described herein: 
If product is found to be defective, we will at our discretion either repair or replace the defective item(s). All Steel Doors 2000 Ltd. will not be liable or obligated for any damages of any kind beyond this repair or replacement. Misuse, abuse, improper storage and/or handling, improper installation or application of product will not be covered by warranty at our discretion. Our warranty terminates one year after product has been shipped from our plant and at any time anyone other than an individual authorized by us performs any work or repair, service or replacement of the product without prior written approval. 

Contact Us

Need more information on this door’s capabilities, specifications or custom options? Want to distribute our steel doors?

Get in Touch
All Steel Doors 2000 Ltd.

130 Milner Ave, Scarborough, ON M1S 3R3, Canada.

Contact

Phone: 416-297-8500

Toll Free: 1-877-353-0937

Fax: 416-297-0374
Email: info@asddoors.com

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