Series 3700 Sliding Glass Door

With its narrow sightlines and wide glass panels, the Series 3700 Vinyl Sliding Glass Door offers a modern and sleek aesthetic with optimized installation and ease of operation. An economic option that matches our Vinyl Line Multi-Slide Door, the two-track sliding glass door offers the functionality of a traditional patio door with an updated, durable style.

  • Low-E, dual-paned, argon-filled glass
  • Clean design with narrow sightlines and wide glass panels
  • AAMA- and NFRC-tested and certified
  • Integrated weep system with 1.5″ sill height
  • A .29 U-factor for energy efficiency

Sill Option

Standard Sill

A “floating” sill track insert gives the Series 3700 Vinyl Multi-Slide Door superior rolling performance, making it highly adaptable to a variety of flooring substrate conditions. Includes an integrated weep system.

Handles and Locking

Flush-Mounted Handle

The narrow design of the Series 3700’s flush-mounted handle allows panels to easily slide past each other.

Standard Handle

The standard handle is color matched to the frame.


Standard frame colors are white or almond. An optional black capstock on the panels and frame finish incorporates hybrid technologies that provide a high level of color stability and low heat gain capabilities.

For material samples, contact a Western Window Systems representative.

Standard Panel Screen System

A panel screen system, included as a standard feature, offers a convenient solution for pest control, using an integrated exterior sill track and head track within the sliding glass door frame.


Technical Resources

  • Product Data Sheet (Coming Soon)
  • Specifications (Coming Soon)
  • CAD Details

The design, purchase, and installation of automation systems are handled by trusted third parties. Contact a dealer to find one near you.

Additional Information

A uniquely shaped home with numerous sliding glass doors.

Energy Efficiency and Sustainability

Good for you and the planet

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Two employees measure an installed sliding door panel.


See how it’s done

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How They’re Made

Built and tested to last.

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