Bifold Extension Arms for Franklin AutoSwing

Motorize your bifold doors with the Franklin AutoSwing. These bifold extension arms adapt the Franklin opener for folding door configurations. The standard Franklin uses a curved arm built for swing-out carriage doors. These arms replace that geometry to drive a bifold assembly instead. Each arm connects to the door with an included attachment bracket, positioned for clean travel and controlled operation across the full fold. The arms are adjustable and can be cut shorter to fit smaller doors. Available in two sizes: 4 ft arm is for openings up to 16 feet 5 ft arm is for openings up to 20 feet Available in black powder-coated. A double bifold setup uses one set of two arms. Order a single arm when only one leaf needs to be driven, such as a narrow opening set beside larger ones. These arms are only compatible with RealCraft bifolding doors. They pair with the Franklin AutoSwing and are available with a door order. Please note that these arms are used instead of the standard Franklin curved arms. They do not attach to the curved arms.