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Optio 58BW TBT tilt-before-turn

Product description

Innovative, versatile, intelligent.

Offering exceptional child safety and seamless operation, our tilt before turn windows are an ever-popular choice with homeowners. Made from high performance aluminium these sustainable systems are inherently strong and lightweight, making them ideal for both commercial and residential designs.

Design features

  • Certified under the Secured By Design scheme
  • Tested to PAS 24
  • Green guide rated A
  • Integrated deep head profiles for ease of trickle ventilation
  • Unique polyamide thermal break design to improve thermal performance


  • Glazing 24mm – 40mm
  • Available in a range of single or dual colour and anodised finishes
  • Available in the following aesthetics: Bay and Contemporary
  • Available in the following configurations: tilt-beforeturn, side hung and multi-light
  • Available for Lifetime Homes (LFT)
  Outward opening
U value W/m²K (Double glazing) 1.5 W/m²K
U value W/m²K (Triple glazing) 1.3 W/m²K
Window energy rating B - C
BRE Green Guide rating A Rated
Acoustic performance (dB) Rw (C;Ctr) 44 (-1;-4) dB
Air tightness (Pa) Class 4 (600 Pa)
Water tightness (Pa) Class 8a (450 Pa)
Wind load (Pa) Class E2400 (2400 Pa)
Security PAS 24 X
Certifications Q-mark
Secured by design X
Opening Open in
Tilt & turn X
Side hung X
Fixed Light X
Multi light X
Size limits  
Top hung (max weight) 100 Kg
Side hung (max weight) 100 Kg
Fixed light (max weight) 250 Kg
Frame depth 58mm and 70mm
Dual color option X
Multi-point locking X
Glazing options Internal and external
Glazing thickness 24mm - 40mm
Sightline (Frame to Vent) 86mm
Sightline (Vent to Mullion) 100mm
Sightline (Fixed Light) 43mm
Bay X
Contemporary X

Download collateral.

Please click here to download supporting collateral for this product which includes the following;

  • Brochures
  • Data sheets
  • Wall charts
  • Profile and section drawings
  • Installation guides
  • BIM models

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