Grade D Steel Wood Security Door for Residential Entrances
6min anti-breakage & 6 lock points for basic security. 0.8mm steel plate + 60-70mm thickness ensures durability. 35dB soundproofing & thermal insulation (1.8-2.2W/m³·k). Custom designs: wood veneer, solid wood or cast-aluminum.
- JIAHUI
- Shanghai
- 7-15days
- Information
Grade D Steel-Wood Security Door Applications and Related Door Solutions
Grade D Steel-Wood Security Door is built for residential, apartment, and commercial entry applications that require practical security, durable door construction, and a clean architectural finish.
Related Products: Grade-A Steel-Wood Security Door | Steel Security Doors | Steel Security Entry Door
JIAHUI DOOR
Grade D Steel-Wood Security Door—Single.Double
Product Features
1. Essential Security Compliance
Meets Class D anti-theft standard (≥6 minutes anti-destruction time).
Features 6 locking points and standard anti-theft lock system.
0.8mm steel plate in door leaf + 1.5mm steel frame for basic protection.
2. Functional Performance
35dB sound insulation reduces everyday noise (traffic, voices).
Thermal insulation (1.8-2.2W/m³·k) helps regulate indoor temperature.
Filled with fireproof cores or bridge-hole mechanical boards.
3. Customizable Options
Panel materials: Density board with wood veneer, solid wood, or cast-aluminum.
110mm wide frame with optional surface designs from catalog.
| Feature | Grade A | Grade B | Grade C | Grade D |
|---|---|---|---|---|
| Anti-Break Time | ≥30 min | ≥15 min | ≥10 min | ≥6 min |
| Door Leaf Thickness | 60mm~70mm | |||
| Inner Steel Plate | 1.0mm | 1.0mm | 0.8mm | 0.8mm |
| Frame Width | 110mm | |||
| Frame Steel Thickness | 2.0mm | 2.0mm | 1.8mm | 1.5mm |
| Filling Material | Fireproof core / Bridge mechanics board | |||
| Surface Design | Customizable (catalog options) | |||
| Lock Type | Anti-theft lock | |||
| Locking Points | 12 | 10 | 8 | 6 |
| Sound Insulation | 35dB | |||
| Thermal Insulation | 1.8-2.2W/m²·K | |||
| Panel Options | Wood veneer, Solid wood, Cast aluminum | |||
Product Advantages
1. Budget-Friendly Protection
Most economical steel-wood door option for cost-sensitive projects.
2. Balanced Performance
Combines basic security with noise reduction and weather resistance.
3. Low Maintenance
Powder-coated steel and treated wood resist rust/warping.
4. Adaptable Design
Suitable for rentals, budget homes, or secondary entrances.
Application Range
1. Residential Use
Ideal for apartment buildings, rental units, or garage entries.
2. Commercial Spaces
Cost-effective solution for storage rooms, utility areas, or back entrances.
3. Renovation Projects
Easy to install as replacement doors for existing structures.
4. Mild Climate Zones
Suitable for regions without extreme weather conditions.
