18x18 Insulated Fire Rated Metal Access Door With Flange, 20-Gauge Galvanneal Steel, 2-Inch Mineral Wool, LEED Compliant

18x18 Inch Insulated Fire-Rated Door with Flange
✔️ UL 10B/NFPA 252 rated, 2 in mineral wool insulation

This 18 x 18 inch insulated metal access door with flange is designed for fire-rated wall assemblies (opening 457 x 457 mm). It features a 16-gauge cold-rolled steel frame and a 20-gauge galvanneal steel door, filled with 2 inches (50.8 mm) of mineral wool insulation to slow heat transfer and protect wall integrity. The door includes an automatic self-closing mechanism and a continuous piano hinge for reliable, frequent access in busy commercial spaces. Finished with a white powder-coat and LEED V4-compliant materials, it’s offered as a single-unit installation for straightforward integration.

✅ Size: 18" x 18" opening (457 x 457 mm) with flange
✅ Fire-rating: UL 10B, NFPA 252, CAN/ULC S104 up to 3 hours
✅ Construction: 16-ga steel frame; 20-ga galvanneal door; 2 in insulation
✅ Hardware: Automatic self-closing mechanism; continuous piano hinge
✅ Finish & compliance: White powder-coat; LEED V4 compliant materials

💡 What is a fire-rated wall access door used for in critical building wall assemblies?

This handy device keeps fire barriers intact while providing access for maintenance. - Handy for mechanical rooms, electrical closets, and service corridors - Maintains fire integrity thanks to mineral wool insulation and steel frame - Supports LEED goals with compliant materials and durable finish