FREE Estimate

OKNA 810 Options & Accessories - Picture Windows

The OKNA Enviro-Star is our high-end Replacement Window. The Enviro-Star combines superb craftsmanship with an old world look and feel. This Series offers a myriad of glass and structural options to seamlessly blend with any décor while providing the utmost in energy efficiency. Since all OKNA products are custom-made, you can be sure of a perfect fit every time.

OKNA 810 Picture Window

810 Series - Picture Windows

  • Full 3¼" Depth Welded Mainframe with beveled colonial exterior features curves that are not only beautiful, but also allow for maximum weld surface resulting in strength and years of long lasting performance.
  • Heatseal® warm edge spacer system for excellent thermal efficiency and drastic reduction in the possibility of condensation on the inside of the window.
  • Available in Replacement and New Construction applications.
  • NFRC U-Factor: 0.25   Air Infiltration: 0.01   Solar Heat Gain: 0.31
Overview - Options & Accessories - Performance

OKNA 810 Performance picture windows feature simulated light dividing grids, to enhance the authentic look and overall durability of your picture windows.

okna 810 picture window options and colors
SLD picture window Simulated Divided Light (SLD) Permanent interior and exterior grids with spacer will provide a truly authentic look. Interior grids are available in a Euro White or Wood Laminate which can be stained to match your home's décor. External grids are available in Euro White or colors to match product exterior.
5/8" Flat Grid between glass
11/16" Contour Grid between glass

Interior picture window grids are an easy and affordable way, to change the look of your new windows without spending a fortune.  Choose from a nice selection both wood and aluminum grids, in a variety of standard colors and custom color upgrades. Locking and performance screens are a smart option for virtually every picture window installation.  Whether it's increased security or better visibility, Wonder Windows will help you choose a screen that's effective, stylish and economical.

Most Common Grid Patterns

Colonial okna 810 picture window pattern


Prairie okna 810 picture window pattern


Diamond okna 810 picture window pattern