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New Construction

Double Hung - DH 5500

  • Maintenance free rigid multi-chamber vinyl profile.
  • 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 superior strength and years of long lasting performance.
  • Fusion welded beveled frame and sash for superior strength and durability.
  • Dual heavy duty cam-type lock and keeper on windows over 24 inches width for added security.
  • One piece sloped sill for proper water drainage.
  • Tilt-In sashes function with recessed spring-loaded tilt latches making cleaning effortless, safe and easy.
  • Fiberglass mesh standard on all double hung windows.
  • Full integral interlock with double weatherstripping.
  • Heavy gauge, fully extruded lift rail.
  • Power Lift™ balance system ensures easy operation, never needs adjusting and has covers to enhance air tightness and add a pleasing appearance.
  • Heatseal® warm edge spacer system for excellent thermal efficiency and drastic reduction in the possibility of condensation on the inside of the window.
  • Optional locking screen provides an additional safety measure.*
  • Radius edges on interior of each sash create a soft feel.
  • All windows manufactured with an integral nailing flange for easy installation.
  • Optional J-Channel available to aid in finishing siding exteriors.

Optional foam-filled insulated extrusions add energy efficiency - Delux version only. (Insulation type may vary during the manufacturing process)
Standard Slim Profile Sash lock with tamper-proof cam ensures a much smoother turn, and increases the life cycle over traditional locks.

Push Button Spring-Loaded Vent Latches allow both window sashes to remain partially open for ventilation.

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 superior strength and years of long lasting performance. An integral nailing flange makes installation easy and the optional J-Channel aids in siding finishes. 

OKNA Windows offers three exterior color selections in addition to the standard Euro-White option to give your home a distinct look and enhance its Curb appeal. You can also special order custom exterior colors from a virtually unlimited selection of paints. Our paints are environmentally safe and durable, giving your exterior a vibrant and long-lasting color finish.

Interior Options

Standard Euro-White finish and
Standard Euro-White Lock

Optional Almond frame
and Optional Almond lock

Optional Cocoa frame
and Optional Cocoa lock

Exterior Colors






Optional Auto-Locks

OKNA Windows Auto-Lock features an exclusive automatic locking system which is easy to engage.





All colors except Euro-White are available at an additional charge. Colors on your monitor may not match the product's actual color. Please visit a local dealer to view actual color samples.

          Energy Star Comparison To
Glazing Option U-Value SHGC VT CR Minimum* Energy Star Minimum
Dual Glazed              
Clear Glass 0.46 0.61 0.63 45 0.30 Does not qualify
With ESP 0.28 0.30 0.55 62 0.30 7% Better
Deluxe 0.25 0.30 0.55 62 0.30 17% Better
Triple Glazed              
With ESP 0.21 0.26 0.43 70 0.30 30% Better
Deluxe 0.19 0.26 0.43 72 0.30 37% Better
Deluxe/krypton Gas 0.15 0.26 0.43 76 0.30 50% Better

U-Value, SHGC, VT, CR values may slightly change for windows made with GBG (Grids Between Glass)
SHGC - Solar Heat Gain Coefficient          
VT - Visible Transmittance            
CR - Condensation Resistance            
ESP - Energy Saving Package            
CIT - Currently In Test              
 * Northern Climate Zone          
      Industry Comparison To  
  OKNA Windows Minimum Industry Minimum  
AAMA Rating R 50 R 15      
Air Infiltration cfm/ft2   0.02   0.3 1500% Better
Water Penetration mph   54   33 64% Better  
Structural Integrity mph   171   94 82% Better  
Water Penetration mph - Specifies wind load pressure in mph a window can withstand  
without leaking, under rain equivalent to 8" per hour.        
Structural Integrity mph - Wind load in mph a window can withstand before breaking.

All result numbers are based on tested window sample by NFRC & AAMA testing window guidelines. Use for comparison
purposes only. Actual values may vary depending on installation, size of the window, and other conditions.



5/8" Flat Grid
between glass

11/16" Contour Grid
between glass

Are you looking for a stunning design detail to instantly set your home apart both inside and out? A choice of
decorative grilles for your OKNA Windows & Doors can highlight the architectural style that speaks to you.

GBG grilles consist of aluminum bars sealed in the insulating airspace between the two panes of glass. Because
the interior and exterior glass surfaces are not affected, cleaning your windows is a much easier task.
GBG grilles on two tone windows are available with matching interior and exterior colors.
Most Common Grid Patterns

Colonial Praire Diamond


OKNA Windows offers factory-installed half screens with heavy-duty handles.
Screens are removable from the inside for convenient storage.
Optional locking screens provide an additional safety measure.*
(* Insect screen cannot support significant amounts of weight. Please keep small children and pets away from windows when only insect screens are in use.)
Okna Windows offers ThruVision® Screens standard on the DH5500 series. These screens improve the view through the window while protecting the interior from insects and allowing perfect ventilation.

ThruVision® Screen Regular Screen