Bi-fold Windows

Expand your horizons and welcome in the view when you select a Westal 477 Series Bi-Fold Window for your kitchen servery or favourite sitting area. Discover the exclusive ‘hinge-and-stack’ action of a Bi-Fold Window to enjoy a neat, uncluttered ‘inside, outside’ transition and an open space that is the envy of many.

Your Bi-Fold Window can be easily configured to suit your entertaining and lifestyle requirements while the inclusion of a rollaway flyscreen will keep large insects at bay. Contact Westal today on how we can optimise your view.


  • Precision ball bearing roller/guide system for smooth operation and an extended service life
  • Single-action lever handle operates a multi-point locking function
  • Flush sill options available
  • Internally fitted, retractable flyscreen option available
  • Full perimeter, continuous weather seals provide exceptional weatherproofing and acoustic performance

Product Configurations


4L Part Open


4L Open


4 Leaf - 2 Left 2 Right (2L2R)


2L2R Part Open

Series Features

477 Series
Recommended ApplicationsHousing & low-to-medium rise residential
Sash PositioningOpen out
Screening OptionsCentor screen
Frame Width Options• 101mm
Water Penetration Options• 150 Pa.
• 300 Pa.
Glazing• Single glazed up to 6.76mm.
• Double glazed (20mm igu)
Energy Ratings AvailableYes
Bushfire Attack LevelTested and certified to BAL-40
Max. Window Size• Max. Height: Window - 1500mm
• Max. Width: 2500mm
Configuration Possibilities2L, 2R, 2L2R, 4L, 4R

Other Windows

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477 Series Bi-Fold Window Configurations & Standard Sizes

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