SBW GT55 TB

Geometry system

  • System depth: 110 mm
  • Maximum door leaf size: 1250mm x 2400mm
  • Maximum door leaf weight: 110kg

Thermal performance

  • U value 1.9 W/m²k (Double glazing)
  • U value 1.72 W/m²K (Triple glazing)
max

Maximum Glass Thickness  

  • Glazing Tickness: 24mm – 40mm

Acoustic Performance 

  • npd

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Description

Designed with security as a priority, the GT55 TB is one of the most comprehensive aluminium door systems available on the market. Engineered to meet the demands of high-security environments, the system achieves PAS 24 certification and Secured by Design (SBD) accreditation across a wide range of configurations, including single and double doors, screens, sidelights, and fanlights.

It supports advanced locking solutions, including panic, mechanical, and electro-mechanical hardware options for both single and double doors, delivering enhanced protection without compromising ease of use.

Ideal for heavy-duty commercial and public sector applications such as offices, hospitals, schools, and multi-residential buildings, the GT55 TB combines robust construction with outstanding thermal efficiency. The system achieves impressive U-values of 1.7 W/m²K with double glazing and 1.5 W/m²K with triple glazing, helping to improve energy performance and comfort.

Design features

  • Security tested to PAS 24
  • Thermally broken for enhanced performance
  • Sightlines of 145mm (single door) and 176mm (double door)
  • Anti-finger trap styles
  • Mid-rail and lay bar
  • Angular corner feature designs

Options

  • Single and double door configurations
  • Available with a full range of security and customisable hardware
  • Mechanical and electro-mechanical multipoint locking options
  • Electronic and manual access systems easily integrated
  • Glazed or non-glazed options
  • Available in single or dual colour option, polyester powder coating and anodised finishes
  • Standard or DDA compliant overhead closer

Cross-Section

PERFORMANCE:

GT55 TB SINGLE GT55 TB DOUBLE
PERFORMANCES
U value W/m²K (Double glazing) 1.9 W/m²K 1.82 W/m²K
U value W/m²K (Triple glazing) 1.72 W/m²K 1.62 W/m²K
Acoustic performance (dB) npd npd
Air tightness (Pa) Class 0 (0 Pa) Class 0 (0 Pa)
Water tightness (Pa) Class 1A (0 Pa) Class 1A (0 Pa)
Wind load (Pa) Class 0 (0 Pa) Class 0 (0 Pa)
Security Q-mark Q-mark
Certifications Q-mark Q-mark
Durability EN1191 category 50,000 Cycles 50,000 Cycles
SIZE LIMITS
System depth 110 mm 110 mm
Maximum door leaf size 1250mm x 2400mm 2500mm x 2400mm
Maximum door leaf weight 110kg 110kg
Glazing thickness 24mm – 40mm 24mm – 40mm
FEATURES
Thermally broken
Low threshold
Panel door
HARDWARE
Multi-point locking
Barrel hinges

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