Tag Archives: steel-wood compisite door

Steel-Wood Composite Door: Technical Specifications

1. Material Composition

Layer Material Thickness Function
Exterior Skin 0.8–1.2mm galvanized steel 20–24 gauge Weather/impact resistance
Inner Core Engineered wood (MDF/HDF) 25–40mm Structural stability
Insulation Polyurethane foam/mineral wool 10–20mm Thermal/acoustic insulation
Interior Veneer Real wood veneer (oak/walnut) 0.5–3mm Aesthetic finish

2. Key Features

✔ Hybrid Durability: Steel exterior resists dents/rust; wood interior prevents condensation
✔ Fire Rating: Up to 60 minutes (with intumescent core)
✔ Thermal Break: Polyamide barrier reduces U-value to 1.2 W/m²K
✔ Customizable: Over 50 woodgrain powder-coat finishes

3. Manufacturing Process

  1. Steel Fabrication

    • Laser-cut steel sheets with embossed woodgrain texture

    • Edge-folded for rigidity (16–18° bend angle)

  2. Core Assembly

    • CNC-milled wood core with routered lock blocks

    • PU foam injection (density 40–60kg/m³)

  3. Bonding

    • High-strength epoxy adhesive (peel strength ≥80N/cm)

    • Hydraulic pressing (15kg/cm² for 30min)

  4. Finishing

    • 7-stage pretreatment (zinc phosphating)

    • Matte/gloss powder coating (60–80μm)

    • Wood veneer lamination (UV-cured acrylic topcoat)

4. Performance Data

Parameter Value Test Standard
Structural load ≥500N (hinge side) EN 14351-1
Watertightness Class 7A (600Pa) EN 1027
Sound insulation Rw 32–38dB EN ISO 717-1
Fire resistance EI30–EI60 EN 1634

5. Hardware Compatibility

  • Hinges: 3–4 stainless steel butt hinges (EN 1935 Grade 13)

  • Locks: Multi-point locking system (ANSI/BHMA A156.13)

  • Closers: Adjustable overhead concealed closers

6. Applications

  • Residential: Luxury entry doors, patio doors

  • Commercial: Hotel lobbies, office buildings

  • Specialty: Marine environments (salt spray-resistant coating)

7. Advantages vs Alternatives

Feature Steel-Wood Solid Wood Fiberglass
Maintenance Low (no refinishing) High (annual sealing) Medium
Security Excellent (steel shell) Good Very Good
Cost $$$ $$$$ $$
Lifespan 25–30 years 15–20 years 20–25 years

8. Order Lead Time

  • Standard sizes: 4–6 weeks

  • Custom designs: 8–10 weeks

  • MOQ: 10 doors (color-matched batches)

9. Sustainability

  • Recycled Content: ≥30% post-industrial steel

  • VOC Emissions: <50g/L (GREENGUARD Gold)

  • FSC-Certified wood components available

knowledge, News

Solid Wood Doors, Solid Wood Composite Doors, and Steel-Wood Composite Doors

Posted on by Zhang Yulin

A Comprehensive Comparison: Solid Wood Doors, Solid Wood Composite Doors, and Steel-Wood Composite Doors When choosing the right door for your home or building, understanding the differences between solid wood doors, solid wooden composite doors, and steel-wood composite doors is essential. Each type offers distinct advantages, depending on factors such as durability, aesthetics, and cost. […]

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