FB Rating Explained for Bullet Proof Doors
Understanding FB ratings is crucial for selecting the right bullet proof door for your security needs. These ratings indicate the level of ballistic protection provided.
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Overview
The FB (Firearms Bullet) rating system is the European standard for classifying bullet resistant doors according to EN 1522. This system provides a clear indication of the level of protection offered against different types of ammunition.
FB Rating Levels
| FB Rating | Ammunition Type | Velocity (m/s) | Typical Applications |
|---|---|---|---|
| FB1 | 9mm Luger | 360 | Low-risk areas, retail |
| FB2 | .357 Magnum | 430 | Banks, jewelry stores |
| FB3 | .44 Magnum | 440 | High-security offices |
| FB4 | .50 AE | 420 | Government buildings |
| FB5 | 7.62x51mm NATO | 830 | Military installations |
| FB6 | 5.56x45mm NATO | 950 | Maximum security facilities |
Testing Requirements
Each FB rating requires specific testing procedures:
- Multiple shots at different points on the door
- Testing at specified distances
- Verification of no penetration
- Assessment of spall (fragmentation)
- Testing of door frame and hardware
- Verification of door operation after testing
Additional Classifications
Spall Protection
- SP1: Basic spall protection
- SP2: Enhanced spall protection
- SP3: Maximum spall protection
Edge Protection
- EP1: Basic edge protection
- EP2: Enhanced edge protection
- EP3: Maximum edge protection
Selection Guidelines
Consider these factors when selecting an FB rating:
- Risk Assessment: Evaluate potential threats
- Location: Consider geographical risk factors
- Building Type: Match protection to facility security needs
- Budget: Higher ratings increase costs significantly
- Maintenance: Higher ratings may require more maintenance
- Weight: Higher ratings increase door weight
Important Note:
Understanding FB ratings is essential for selecting the appropriate level of ballistic protection for your security needs.
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Discover our range of bullet proof security doors with certified FB ratings and superior protection.