Composite Outswing 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.

Composite Outswing Sill

Tru-Defense Eligible

Product Options

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

Sill Finish Options

Sill Cap Options

Additional Product Information
Related Products
Therma-Tru Outswing Sills

Composite Outswing Sill

  • Extra thick, continuous moisture- and insect-resistant all-composite substrate provides a solid stepping surface and superior rot resistance.
  • Thick, through-colored moisture- and insect-resistant composite cap and nosing resists wear and rot, featuring a realistic wood-grained appearance to complement home interiors.
  • Integrated removable weatherstrip creates a bumper effect, strengthening itsseal with wind pressure.
  • Thick, 15-gauge aluminum approach provides excellent durability and 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.