As a homeowner, you should reset the opener to prevent outsiders from opening the door with a remote that's set to a Liftmaster default code. A simple procedure allows you to reset the opener for one or more remotes.
doorsill - the sill of a door; a horizontal piece of wood or stone that forms the bottom of a doorway and offers support when passing through a doorway. doorstep, threshold. 1  doorway, room access, door, threshold - the entrance (the space in a wall) through which you enter or leave a room or building; the space that a door can close; he stuck his head in the doorway.
Choosing the right size door is a breeze. Andersen Â® storm doors conveniently attach to the exterior trim of an existing entry door. Find the door size you need by following these easy steps. 1 Height Measure for height (H) from the sill to the underside of the exterior trim at the top of the door. H _________________ Record your door height. 2 Width Measure the width at the top (W1), center (W2) and bottom (W3) of the door opening.