SBW GT55 NI
Geometry system
- System depth: 110 mm
- Maximum door leaf size: 1100mm x 2400mm
- Maximum door leaf weight: 80 kg
Thermal performance
- U value 3.6 W/m²K (double glazing)
- U value 3.42 W/m²K (triple glazing)
Maximum Glass Thickness
- Glazing thickness: 24mm – 28mm
Acoustic Performance
- npd
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Description
The GT55 NI door delivers exceptional strength and security, making it ideal for high-traffic commercial environments where thermal insulation is not a primary requirement. Designed as one of the most secure swing door systems on the market, it offers outstanding durability and reliable day-to-day performance.
The system has been fully tested with full glazing configurations, eliminating the need for steel-reinforced panels, and is also available in semi-glazed options for added flexibility. It integrates seamlessly with ground floor treatment systems, ensuring a cohesive and practical installation.
The GT55 NI achieves U-values of 3.0 W/m²K with double glazing and 2.8 W/m²K with triple glazing on double door configurations.
Design features
- Sightlines of 145mm (single door) and 176mm (double door)
- Anti-finger trap styles
- Mid-rail and lay bar
- Angular corner feature designs
Options
- Glazed or non-glazed options
- Available with a full range of security and customisable hardware
- Electronic and manual access systems easily integrated
- Available in single or dual colour option, polyester powder coating and anodised finishes
Cross-Section
PERFORMANCE:
| GT55 NI SINGLE | GT55 NI DOUBLE | |
|---|---|---|
| PERFORMANCES | ||
| U value W/m²K (Double glazing) | 3.6 W/m²K | 3.05 W/m²K |
| U value W/m²K (Triple glazing) | 3.42 W/m²K | 2.86 W/m²K |
| Air tightness (Pa) | Class 0 (0 Pa) | Class 0 (0 Pa) |
| Water tightness (Pa) | Class 1A (0 Pa) | Class 1A (0 Pa) |
| SIZE LIMITS | ||
| System depth | 110 mm | 110 mm |
| Maximum door leaf size | 1100 × 2400 mm | 2200 × 2400 mm |
| Maximum door leaf weight | 80 kg | 80 kg |
| FEATURES | ||
| Low threshold | ✓ | ✓ |
| Panel door | ✓ | ✓ |





