commercial steel doors

LG37S Hot-rolled steel series

Produced with hot-rolling technology, the 37 Series delivers a bold and solid profile with exceptional structural stability. Its clean, powerful lines make it ideal for expansive floor-to-ceiling windows, public architecture, and industrial-style projects, creating a strong visual presence and architectural impact.

LG50S Cold-bent steel series

Formed through advanced cold-bending techniques, the 50 Series is distinguished by its slim and refined profile, combining strength with lightness. It is best suited for interior partitions, fine window divisions, and minimalist modern spaces, offering both stability and a sense of elegance.

LG65S Thermal-break steel series

With integrated thermal-break technology, the 65 Series combines the inherent strength of steel with superior insulation and soundproofing performance. It is particularly suited for villas, luxury residences, and high-performance commercial spaces, ensuring both comfort and long-term durability.

steel-look thermal-break aluminum alloy

Built on lightweight aluminum alloy with thermal-break design, the 65 Steel-look Series replicates the authentic appearance of steel while offering aluminum’s advantages of corrosion resistance, insulation, and reduced weight. Perfect for modern homes, apartments, and design-focused spaces, it balances performance with distinctive aesthetics.

Shanghai

Shanghai

Beijing

Shanghai

Shanghai

Shanghai

London

London

Australia

Qingdao

London

America

Superior Protection for Demanding Environments
Commercial steel doors deliver unparalleled security and longevity for institutional, industrial, and retail applications. Unlike wood or fiberglass alternatives, these hollow metal doors utilize 18-gauge steel frames and reinforced cores to withstand impact, corrosion, and daily wear. Fire-rated steel doors comply with FEMA P-320 and ICC500-2014 tornado/storm shelter standards, providing critical safety in emergencies.

Technical Excellence & Performance

• Material Specifications: 12–18-gauge steel facings with galvanized coating; optional thermal break profiles for extreme climates.

• Fire & Impact Ratings: 60–90-minute fire resistance with Pilkington Pyrostop® glass; meets SCIF Group 3/4 for EMI-RFI shielding in secure facilities.

• Insulation & Acoustics: Polyurethane foam cores achieve U-values ≤0.32, reducing noise by 30–40 dB—ideal for hospitals or labs requiring sound control.

Key Advantages of Commercial Steel Doors

• Security Reinforced: Multi-point locks and tamper-proof hinges deter break-ins; commercial steel doors are 300% more resistant to force than wood doors.

• Sustainability: 100% recyclable steel construction lowers carbon footprint; energy-efficient cores cut heating/cooling expenses.

• Low Lifetime Cost: Powder-coated finishes resist chipping and UV damage, eliminating repainting. Commercial steel doors require only biannual hinge lubrication.

Versatile Applications
Commercial steel doors adapt to diverse settings through customizable designs:

• Roll-Up Doors: Space-saving tracks for warehouses with high-traffic loading bays.

• Bi-Fold Systems: Wide aircraft hangar access (up to 25×7m) using motorized hydraulic operation.

• Acoustical Assemblies: STC 50+ rated doors for recording studios or government facilities needing sound isolation.

Customization & Compliance
Select from glazing options (tempered/Laminated/argon-filled glass), vision panels, or ADA-compliant hardware. Commercial steel doors support NFRC/Energy Star® certifications for green building projects.

Maintenance Guidelines

• Inspect seals quarterly; replace worn EPDM weather stripping to prevent drafts.

• Clean surfaces with pH-neutral solutions; avoid abrasives to preserve finishes.

• Address minor rust spots immediately using zinc-rich primers to halt corrosion.