Series 311 Sliding Patio Door

White 2 Lite Series 311 Sliding Patio Door


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.

Series 311 Overview

Series 311 Sliding Patio Door

Features & Benefits

  • 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

Energy Efficient Glass Options

Energy Star Program LogoAtrium windows and doors are engineered with state-of-the-art glass technology to give you outstanding thermal efficiency. With a full range of glass options and special insulated spacers, we have a glass package to fit any climate need or budget. Verify product specifics before ordering.

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 and 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 and 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.

Vinyl Color Options


Device/Monitor screen settings may affect color shown. Please refer to actual window sample when selecting colors.

Available Grid Patterns

Colonial (SL)

Vertical (SL)

Diamond (SL)

Prairie (SL)

Perimeter Prairie (SL)

Valance (SL)

Available Grid Types

1-Inch Contoured Grid

3/4-Inch Flat Grid

5/8-Inch Contoured Grid

5/8-Inch Flat Grid

Shop All Atrium Patio Doors By Style

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Window Basics & Learning Resources

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Atrium Resources For Professionals

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