An extra door installed outside of an exterior primary or ordinary door to reduce heat loss and air infiltration.

an extra outer door for protection against severe weather or winter

an additional exterior door that is installed over the door built into the house

An exterior door that protects and insulates an entrance door from harsh weather. Storm doors can be fitted with either screens or windows, depending on the season.

An additional outside door set in the door frame to provide better insulation against the weather.

A door that is hung to cover and protect and insulate an exterior door; typically containing glass and sometimes screening material.

A panel or sash door placed on the outside of an existing door to provide additional protection from the elements.

An exterior door that protects the primary door.

Door that provides insulation and weather protection and is usually installed outside of a wooden exterior door. Windowpanes and screens may be interchangeable to provide ventilation in warmer weather.

A storm door refers to a type of door that is installed in front of an exterior access door to protect it from bad weather and allow ventilation. Storm doors typically have interchangeable glass panels and window screen panels to provide visibility and prevent flying insects from entering the home.