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.
Standard Aluminum Entry Doors sizeâs are: 6âft. 8â³ in Height by 36â³ Wide. * Please Note: United Inches is where you add the height and the width of a door. I.e : the standard Aluminum Entry door would measure 84â³ inches in height by 36â³ wide, for a total of 120 united inches.