Bay window


Box windows that have sides at 90° to the wall or bay windows that have sides set at 120°, 135° or any other angle to the wall can add character and interest to your home and are great for maximizing light and space.

The next photo is a bay window with round couplings which can join windows at any angle.

While there is steel reinforcement inside the PVC-U frames at the corners, box and bay windows shall not be used as building structure to support roof for example.


It is possible to make a box windows without PVC-U frame at the corner. Glass is butt joined at the corner.

For single glazing the glass can be sealed by clear silicone at the corner for better view but for double glazing the black sealing at the edge of the double glazing units is visible.

Product Features >>

  • Fully compliant to technical specifications set forth in European standards, EN12608.
  • Multiple chamber system design enhances heat and sound insulation properties.
  • Galvanised steel reinforcement imparts optimum stability to the window system.
  • Comply with Clause B1 and Clause E2 of NZBC for an Extra High wind zone.

More windows…

Specifier resource
Send us building plans or details of windows and doors for a
Free Quote