Model 311 Sliding Patio Door

311 Series
Sliding Patio Door
NNew ConstructionRReplacement

Economically positioned, the 311 sliding door offers all the functionality of the 312 without the cosmetic upgrades. Offered in white only, the 311 comes standard with a locking handle, optional screen door and is available in 5068, 6068 or 6468 sizes.


  • All-welded frame and sash corners
  • Field-reversible
  • 7/8″ tempered glass panels
  • DP 35 (size tested 71″ x 80″)
  • White enamel handle with lock
  • Screen optional
  • Tandem cadmium plated rollers
  • Removable nail fin for replacement applications


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Atrium Vinyl Sliding Patio Doors

Atrium Manufacturing Story

Low-E and Argon Gas for Atrium Windows
Available Low-E Glass Packages
Low-E Glass
Low-E glass is coated with a microscopic layer of silver that reflects radiant solar energy while permitting visible light to pass through the glass, providing more comfort and lower energy costs.
Low-E Glass + Argon Gas
Argon gas works like an insulating blanket between two panes of glass to further improve thermal eciency and decrease outside sound levels.
Ultra Low-E Glass + Argon Gas
Choose our ultimate glass package for optimal energy efficiency and maximum cost savings. Ultra Low-E glass offers three invisible layers of silver coating in addition to the superior thermal performance of argon gas.
Grid Options
Available Grid Patterns




Prairie/Perimeter - 3-Leg
Available Grid Types

1" Contoured

3/4" Flat

5/8" Contoured

5/8" Flat
Color Options
Available Vinyl Color Options
Available Aluminum Color Options
Available Laminate Options
Available Exterior Paint Options
Device/Monitor screen settings may affect color shown. Please refer to actual window sample when selecting colors. Interior and exterior laminates available on white window only. Only use mild, water based household cleaner on painted product and rinse immediately with water. See full cleaning instructions for details. Grid offering limited to 5/8” contoured or SDL on exterior painted windows.
Decorative Glass Options
Leaded/Star Bevel glass option available on picture windows only and pattern adjusts based on actual window size. Star Bevel background color added for display clarity.
  • Low-E Glass
  • Low-E Glass + Argon Gas
  • Ultra Low-E Glass + Argon Gas (May be required for Energy Star rating)
  • 5/8″ or 3/4″ flat, 5/8″ or 1″ contoured grids available
  • Screen
Screens are not meant to restrain a child from falling through an open window.
Frame Specifications
Frame Material:
Vinyl (PVC)
Frame Construction:
Frame Appearance:
Classic streamlined profile
Jamb Depth:
Product Frame:
Removable nail fin
Sill Design:
Component Specifications
Glass Properties:
7/8" insulated single strength
Screen Frame:
Screen Mesh:
Testing Specifications
Structural Performance:
  • DP 35 (size tested 71" x 80")
Warranty Coverage
Limited lifetime
Glass Breakage Warranty:
Manufacturer reserves the right to substitute components as necessary.

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