• Available ISO Ratings: ISO 6, ISO 7, ISO 8
  • Fire-rated insulated access door carries the UL-10B label for 90-minute fire exposure
  • Max.  Temperature rise of 250 degrees F after 30 minutes
  • 304 stainless steel construction is compatible with most critical environments, including labs and cleanrooms
  • Self-closing, self-latching door with internal latch release ensures compatibility with fire requirements
  • Fire-rated side features 1-inch mounting flange with easy-clean, smooth stainless steel finish
  • Custom door sizing and electrical add-ons, such as UV light or temperature control, invalidates the product's UL listing
  • Order opposite-side mounting flange separately


Door Style: Fire-Rated

Frame Material: Stainless Steel

Height: 24"

Mounting Position: Flush Wall

Width: 18"

Electropolished: Optional

Window Material: Tempered Glass

Wall Thickness: 2.5"

Unit of Measure: EA


Marks & Listings: UL, ULC, UL 10B Fire Rated

Weight, Product: 85 lb

Dimensions, Product: 20" W x 2.5" D x 26" H

Weight, Shipping: 127 lb

Dimensions, Shipping: 25.75" W x 31.5" D x 10.38" H

Package Type: Crate

Features and Benefits

Products Compliant With Your ISO Rating

Provide Terra with your desired ISO rating. We will tailor the product to meet your rating and supply a certificate of compliance appended to your invoice, to be included in your compliance package. All certificates are archived in Terra's system for quick retrieval.

Fire-Rated Pass-Through Glass Window

The wire-free glass-ceramic incorporate a surface-applied, fire-rated film and is impact rated for additional safety. These windows feature a high level of clarity and offer protection from either side.

Spring-Loaded Fire-Rated Passthrough Hinge

Spring-loaded hinges provide the self-closing capability required in a fire-rated wall. Automatic closing doors also simplify operation for operators with hands full.

Insulated Fire-Rated Pass-Through Door

Terra’s fire-rated door meets UL 10B requirements for 90-minute fire exposure, including hose-stream testing. The inside of the door is lined with 2”-thick SuperWool® Plus insulation to reduce heat transfer from elevated room temperatures.

High Caliber Hardware

Seemingly small details like latches, ports, glides and hinges are often overlooked or ignored by other manufacturers, and later become the point of costly recurring maintenance or equipment failure. Terra’s products are made of long lasting, cleanroom compatible, top tier hardware. Individual components are carefully designed and rigorously tested to guarantee the highest quality, durability, and craftsmanship.

Continuous Product Improvement

At Terra, we strive to develop and produce the highest quality products for our customers to improve health, safety, performance, and yields. Our product quality is enabled by high-grade manufacturing equipment and processes, 45 years of engineering and application expertise, and our commitment to continuously improve.

Comprehensive Product Portfolio

Terra’s comprehensive product portfolio includes solutions for every application and budget. Our technical sales staff will guide you toward the product most suitable for your requirements.

Long-Term Customers

Terra is committed to building long-term relationships with satisfied clients; 94% of orders each year come from repeat customers
Popular Accessories
For a full list of accessories, select a product then click Choose Accessories on that product page.
  • Electropolish Finish

    Electropolishing increases corrosion resistance and improves ease of cleaning with a smooth, reflective, mirror-like finish.
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