• Need Help? 877-412-3667 M-F 9AM-3PM CST

FREE SHIPPING ORDERS OVER $200
Only within the Continental U.S.

Home >
36" x 84" LHR 90 Minute Fire Rated Hollow Metal Door System  B Label UL Listed | New Construction Metal Stud Wall

Engineered for Compliance, Trusted by Inspectors.

36" x 84" 90 Minute Fire Rated LHR Hollow Metal Door System -B Label (1-1/2 Hour), UL Listed, NFPA 80, ADA & IBC Compliant, Turnkey Assembly with Fire Rated Frame & Hardware for New Construction Metal Stud Wall, USA Made (3-4 Week Production)

$
Choose your options:
Frame Jamb Depth:
Door Louver
ADA Glass Window
ADA Glass Window:
Product Code: SLF90-M3070LHR
Inspection-Ready, Built to Spec, 3 to 4 Week Production

Orders Over $200 Qualify for FREE SHIPPING!

Steel-Lite™ 36" x 84" 90 Minute Fire Rated LHR Hollow Metal Door System - B Label (1-1/2 Hour)

The Steel-Lite™ 90 Minute Fire Rated Hollow Metal Door System in LHR (Left Hand Reverse) handing is engineered for new construction metal stud wall applications. Supplied as a complete turnkey assembly, this B Label (1-1/2 Hour) package includes a UL listed fire-rated door, fire-rated steel frame with new construction metal stud anchors, and a Grade 1 fire-rated hardware set. Built in the USA with reliable 3–4 week lead times.

What’s Included (Turnkey)

  • Door Slab: 36" x 84", LHR (Left Hand Reverse), 18-gauge galvannealed steel skins, prime painted.
  • Fire-Rated Core: Engineered fire-rated core for 90 minute UL labeling.
  • Fire-Rated Frame: KD frame with metal stud anchors for new construction drywall partitions.
  • Anchoring: Compression anchors or welded-in anchors for metal studs, ensuring rigid installation.
  • UL Listed Grade 1 Hardware Package: fire-rated hinges, lockset or exit device (per spec), fire-rated closer.
  • Smoke/Fire Seals & Threshold (if specified): Components aligned to listing and code compliance.
  • Documentation: UL/cUL labels and paperwork for smooth AHJ approval.

Compliance & Certifications

  • 90 Minute Fire RatingB Label (1-1/2 Hour) tested per NFPA 80.
  • UL/cUL Listed fire-rated door, frame, and hardware assembly.
  • ADA & IBC Compliant when field-installed per listing and adjusted properly.
  • ANSI/BHMA Grade 1 fire-rated hardware included for long-term reliability.

Note: Fire ratings apply only when the complete labeled assembly is installed per UL procedure and AHJ requirements.

Door Construction

  • Size & Handing: 36" x 84", LHR (Left Hand Reverse).
  • Door Skins: 18-gauge galvannealed steel, prime painted for field finishing.
  • Core: Fire-rated core designed for 90 minute labeling.
  • Edges & Reinforcements: Interlocked edges with hinge, lock, and closer reinforcements.

Frame & Anchoring – New Construction Metal Stud Wall

  • KD fire-rated frame supplied with metal stud anchors.
  • Anchors include metal stud strap anchors.
  • UL labeled to maintain 90 minute fire rating when installed per listing.

Included Fire-Rated Hardware

  • Hinges: UL listed fire-rated ball-bearing hinges.
  • Lock: Grade 1 UL fire-rated lockset.
  • Closer: Fire-rated closer with adjustable closing speeds and ADA-compliant operation.
  • Perimeter Seals/Threshold (if specified): Fire/smoke components as required.

Performance Advantages

  • Inspection-Ready: Supplied as a complete UL listed B Label system for new construction.
  • Turnkey: Door, frame, and hardware pre-matched to listing requirements.
  • Durability: 18-gauge steel + Grade 1 hardware ensures long service life.
  • USA Made: Quality controlled manufacturing with 3–4 week production.

Typical Applications

  • New commercial interiors with fire-rated metal stud/drywall partitions.
  • Stairwells, corridors, and fire separations specified at 90 minutes (B Label).
  • Healthcare, education, civic, and government facilities needing UL fire-rated systems.

Key Specifications

BrandSteel-Lite™
Nominal Size36" x 84"
HandingLHR (Left Hand Reverse)
Fire Rating90 Minute (B Label, 1-1/2 Hour)
Door Skins18-gauge galvannealed steel, prime painted
CoreFire-rated
FrameKD with new construction metal stud anchors
HardwareUL listed, ANSI/BHMA Grade 1 fire-rated set
ComplianceNFPA 80, ADA, IBC, UL/cUL
ApplicationNew Construction – Interior Metal Stud Walls
Country of ManufactureUSA
Lead Time3–4 weeks (standard)

Dimensions

  • Outside Frame Dimensions: 40" Wide x 86" Tall
  • Rough Opening Requirement: 40.5" Wide x 86.25" Tall




Here To Serve You

Have Questions or Need Help?

Our specialists are just a phone call away. Call 866-232-5673 and we will gladly assist you!

Reviews

Average Rating:
( 0 )
Empty Cart