Pre-Finished Sill Thresholds Now Available for Pinnacle Patio Doors
This summer, Windsor Windows & Doors introduced pre-finished sill thresholds for our Pinnacle patio door line. With this change, you can now match the finish of your wood threshold to the pre-finished interior of the remainder of your door. This exciting addition has proved to be a popular option with the patio door offering.
Why It Matters
The new pre-finished sill thresholds match our most popular interior finishes, eliminating the need for field finishing and ensuring a consistent, pleasing appearance. This update simplifies the installation process and enhances the overall aesthetic of Pinnacle Sliding and Hinged Patio Doors.
All doors that include a pre-finished sill threshold come with a removable PVC cover. The PVC cover is applied during the door’s construction to add a protective layer over the finish, thereby preventing scratches, dents and other damage. The cover is designed to remain in place until the construction of the home or building is complete.

Zachary Spurr, product development manager, shows the new pre-finished sill threshold feature.
Pre-Finished Coverage Area

PINNACLE IN-SWING

PINNACLE SLIDING DOOR

PINNACLE OUT-SWING

BI-FOLD DOOR
PRE-FINISHED SILL COMPONENTS
PRE-FINISH COVERAGE AREA
Available Finishes
Threshold finishes can be mixed and matched with the interior finish selected for the rest of the interior. With Windsor’s interior finishes, the possibilities are endless. You could opt for a white frame, a chestnut-stained panel and a clear-coated threshold, for example. Windsor can customize these doors to match your interior and style.
- Clear Coat
- Primed (White or Black)
- Painted (White, Black or Gray)
- Stained (Antique Barrel, Chestnut, Espresso, Intensive, Perfect Brown, Provincial, Sunlight, Tea with Milk)
Sunlight
Provincial
Tea with Milk
Antique Barrel
Perfect Brown
Intensive
Chestnut
Espresso
Touch-Up Kits
Being located on the sill of the door, the threshold can take a beating from day-to-day traffic. Although the interior finish will provide some protection, wear and minor damage may still occur over the product’s life. Windsor offers color-matched fill sticks and touch-up paint markers to keep your threshold looking new for years to come.
If you have any questions regarding the pre-finished threshold or any other Windsor Windows & Doors product, please contact your Windsor Regional Sales Manager or Customer Support Representative.