The double hung 800 double pane Deluxe is a top choice of homeowners looking for high-end windows. As with all Okna windows it comes with a limited lifetime guarantee and our labor guarantee as well. For the money you will have a hard time finding any window with an equally rated performance.

  • 13% Better than Energy Star┬« minimum
  • 3000% better Air Infiltration protection compared to Industry Standards
  • Magnetic Window to frame seals virtually eliminates drafts
  • Maintenance free design and construction
  • 3 1/4" Depth Welded Mainframe provides lasting performance.
  • To lower condensation on the inside of the window the 800 series utilizes our Heatseal┬« warm edge spacer system 
  • Double weather-stripping.
  • Numerous hardware options for any decor.
  • Factory installed fiberglass mesh half screen with Optional locks
          Energy Star         Comparison To
Glazing Option U-Value SHGC VT CR Minimum*              Energy Star Minimum
Dual Glazed              
Deluxe 0.26 0.29 0.53 62 0.30   13% Better


      Industry Comparison To  
  Our Windows Minimum Industry Minimum  
AAMA Rating R 60   R 15      
Air Infiltration cfm/ft2 0.01     0.3          3000% Better
Water Penetration mph 59    33             79% Better  
Structural Integrity mph 187     94            99% Better