Abstract: A storm door includes a frame with opposing side rails, top and bottom rails, and a center mullion. A kick plate is mounted between the center mullion and bottom rail, and a stationary screen sash and stationary window panel are mounted within the same vertical plane between the center mullion and top rail. A window sash is slidably mounted between a pair of jamb liners on the side rails between the center mullion and top rail, and spaced inwardly of the screen sash and stationary window panel. Counterbalance assemblies are connected to the window sash and located between the jamb liners and side rails to permit retention of the window sash at any position between an upper position contacting the top rail, and the lower position contacting the center mullion.