Skip to ContentSkip to Tier 3 Site NavigationSkip to Site Utility NavigationSkip to Main Site Navigation
Product Overview :: Sills :: Sills for Every Application
Performance Standard


French sills

French Sills

Continuous sills provide an uninterrupted seal across the door unit, preventing leaks.  Endura's Ultimate Astragals are able to build on this permanent seal by utilizing a built-in retractable boot that will not fall off after continued use.

The boot works by lifting up with the flush bolt and off of the threshold when a door is opened, then is secured back in place when the door is closed to provide a lasting seal.