Transform Your Space with Premium Steel Doors from Walnut

Why Choose Steel Doors for Australian Projects?

When you’re designing or refurbishing a home, retail fit-out or commercial façade, the entryway sets the tone. Steel doors deliver a unique mix of strength, fire performance, design flexibility and long-term value that lighter materials can’t match.

• Bushfire & fire compliance. Under the NCC 2022, a required fire door must be constructed and tested to AS 1905.1 to prove its integrity and insulation in a fire event.

• Energy efficiency. Modern security doors with insulated cores create an extra thermal barrier, helping to stabilise indoor temperatures and trim energy bills.

• Security. Doors of steel have a far higher resistance to forced entry than timber or fibreglass alternatives, giving owners peace of mind.

• Low maintenance. Galvanised or powder-coated finishes shrug off Australia’s UV exposure, salt spray and driving rain with minimal upkeep.

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Steel Doors

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Complementary Metal Solutions

Product	Key Feature	Typical Application	Walnut Expertise
Steel doors	Fire-rated, secure, thermally broken	Main entry, plant rooms, exits	Custom fabrication to BAL-40 where required
Corten steel screens	Weathering patina, architectural statement	Privacy panels, garden features	Laser-cut patterns, hidden fixings
Steel cladding profiles	Lightweight, non-combustible	Facades, feature walls	Roll-forming & on-site installation
Steel gate	Robust frame, automated options	Driveways, laneways	Integrated motors & access control

Integrating Steel Doors with Other Metal Elements

A cohesive exterior isn't built on a single component. Pairing steel doors with matching steel screen panels, architectural steel walling, or weather-aged corten steel screens creates a unified palette that feels deliberate rather than piecemeal.

• Profiles & cladding. Deep-ribbed steel cladding profiles resist wind and water, last for decades, and can be supplied in colours that echo the door leaf or frame.

• Corten character. In temperate regions with alternating wet and dry weather, Corten develops a stable protective patina that seals the material against deeper corrosion.

• Screen panels & gates. Matching laser-cut motifs across steel screen panels and a driveway steel gate carry the design language from kerb to front door.

Ask Walnut about combining a thermally-broken door frame with adjoining steel sheet profiles, you’ll achieve a flush finish that hides fixings and simplifies weather-proofing.

Walnut’s Process in Action

When architect Lisa Ng designed a new coastal residence in Mornington Peninsula, the brief called for a BAL-40 compliant entry, uninterrupted ocean views and materials that would mellow gracefully over time.

1. Consult & prioritise. Our team met Lisa and the homeowners on site, mapping out prevailing winds, salt exposure and BAL zoning.

2. Design & engineer. We detailed a triple-sealed steel door with concealed pivot hinges, side-light glazing and matching corten steel screens for privacy.

3. Fabricate & finish. All components were laser-cut, TIG-welded and powder-coated in Walnut’s Dandenong factory before a final QC check.

4. Install & support. The door and screens were craned into place in a single morning, avoiding damage to freshly poured aggregate. A 10-year workmanship warranty backs the project.

The result? A dramatic, low-maintenance façade that will weather in harmony with the landscape, no peeling paint or swollen timber in sight.

Design Considerations & Custom Options

• Profiles & sightlines. Ultra-slim frames maximise glass area while retaining the rigidity you expect from steel for doors.

• Finishes. Choose between textured powder-coat, patinated zinc, or a living metal finish that evolves over time.

• Hardware & automation. Walnut integrates smart locks, biometric readers, or full home-automation packages without compromising the minimalist aesthetic.

• Glazing. High-performance low-E or laminated glass boosts acoustic control and meets stringent energy ratings.

Thinking about Bushfire Zones?

Non-combustible materials such as steel are increasingly specified for BAL-40 construction, with the door system often exempt from ember screening because it already withstands radiant heat up to 40 kW/m².

Compliance & Quality Assurance

• Every Walnut steel door is engineered to the relevant sections of the NCC and verified against AS 1905.1 or AS 1530.4 fire-test data.

• Welds are inspected with dye penetrant testing, while powder-coat thickness is confirmed with digital gauges to ensure long-term corrosion resistance.

• Our project managers organise installation certificates, O&M manuals, and ongoing maintenance schedules so you remain compliant long after hand-over.

Ready to Elevate Your Project?

Whether you’re a homeowner wanting to prioritise security, a builder chasing tight programme dates, or an architect pushing bold façades, Walnut is here to help. Contact our Melbourne office today to discuss bespoke steel doors, striking corten steel screens, or any of our metal fabrication services and discover how engineered precision can transform your next project.