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)
max

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/m²K3.05 W/m²K
U value W/m²K (Triple glazing)3.42 W/m²K2.86 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 depth110 mm110 mm
Maximum door leaf size1100 × 2400 mm2200 × 2400 mm
Maximum door leaf weight80 kg80 kg
FEATURES
Low threshold
Panel door

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