High-Security Entry for Commercial Buildings
Grade 5 Security Door is the highest grade under the GB17565-2022 standard for commercial security doors. This is the top protection level available for building entry points. It resists heavy-duty attacks and provides extended forced entry protection. Banks, government buildings, and high-value retail stores use Grade 5 Security Doors for perimeter protection. Our doors are tested and certified to meet all Grade 5 requirements.
Heavy-Duty Materials for Maximum Strength
The door panel uses cold-rolled carbon steel with a minimum thickness of 1.0mm. The door frame uses 2.0mm thick steel. The total door thickness is 95mm. The interior has a steel skeleton with reinforcing bars. This prevents deformation under attack. Locking points exceed 22 around the door. This secures the door into the frame on all sides. The lock mechanism uses B-grade or higher locks meeting GA/T 73-2015 standards. A reinforced steel plate protects the lock area within a 100mm radius.
Certified Attack Resistance
Grade 5 means the door withstands 30 minutes of sustained attack. This includes drill attacks, torch cutting, and physical force. The door has an anti-cutting mesh integrated into the door body. This triggers an alarm if someone tries to cut through. The alarm activates at 120 decibels. This deters attackers and alerts security. The lock system includes multiple locking bolts. The bolt design prevents spreading or forcing.
Customization for Your Building Needs
Choose from multiple finishes and colors. The Grade 5 Security Door can match your building's appearance. Options include single or double-leaf configurations. Different lock types are available. These include standard mechanical locks and electronic access control. The door can integrate with your building's security system. Our engineers survey your site and ensure proper installation.

Trusted by Major Institutions
Our Grade 5 Security Doors are installed in banks, police stations, and government facilities across China. We manufacture every door in our 14,000-square-meter factory. Our quality system covers every stage from raw materials to final inspection. We hold ISO9001, ISO14001, and ISO45001 certifications. After installation, our service team provides full support. We respond within 24 hours and arrive on-site within 48 hours. All products have lifetime maintenance.
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product Specification
|
Parameter |
Specification |
|
Security Grade |
Grade 5 (highest under GB17565-2022) |
|
Door Panel Thickness |
≥1.0mm cold-rolled carbon steel |
|
Door Frame Thickness |
≥2.0mm steel |
|
Total Door Thickness |
95mm |
|
Locking Points |
≥22 locking points around frame |
|
Lock Type |
B-grade or higher lock (meets GA/T 73-2015) |
|
Attack Resistance |
30 min sustained attack / Drill resistant / Torch resistant |
|
Additional Features |
Anti-cutting alarm mesh (120dB alarm) / Reinforced lock plate |
|
Configuration |
Single-leaf / Double-leaf (optional) |
|
Finish |
Multiple colors available |
|
Customization |
Custom dimensions / Multiple finishes / Electronic access control integration |
|
MOQ |
1 unit |
|
Lead Time |
15–20 days |
|
Quality Certification |
ISO9001, ISO14001, ISO45001, GB17565-2022 |
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