The sill is the foundation of the door frame. Sills rest underneath the threshold and are typically only found on exterior doors. Replacing the sill is a fairly simple process. Begin by examining the ...

These seals consist of door sweeps, jamb seals, and dock-leveler seals. The threshold, the sill of the door, provides support at the bottom of the doorway. Locking features for exterior doors include ...

Set each nail just a little ways below the surface and fill with caulking. Also caulk around all edges of the new sill. Paint the new sill with a finish exterior-grade paint. If the old sill is rotten ...