Basic Fixed Sill

Genuine Therma-Tru®sills and bottomsweeps help form a tight seal against wind-driven moisture infiltration at the bottom of the door system and help channel moisture away from the home. The sill pan (recommended) adds an extra layer of protection to help keep moisture away from the subfloor.

Basic Fixed Sill

Product Options

Available Depths - 4-9/16, 5-3/4, 7-3/4

Sill Finish Options

Sill Cap Options

Additional Product Information
Related Products
Therma-Tru Sills

Basic Fixed Sill

  • Continuous moisture-resistant treated Pine substrate provides a solid stepping surface and resists rot.
  • Slanted cap and nosing mates with the single-bulb bottom sweep to thelp form a light seal.
  • 17-gauge aluminum approach provides a solid stepping surface.
Adjustable for long-lasting performance.
Genuine Therma-Tru sills are engineered with features to help minimize the potential for leaks and drafts. Our adjustable sills allow flexibility to adjust the sill cap vertically to close gaps over time, helping to maintain a tight seal between the sill and bottom of the door.