Get the most out of coastal living by incorporating moving walls of glass with Sierra Pacific's FeelSafe Bi-Fold Door. It's the first true aluminum clad exterior/wood interior bi-fold door on the market that meets Zone IV/HVHZ impact requirements with only a 2-1/4" thick panel. This bi-fold is available with an outswing configuration, with a maximum size of 10' tall and up to 24' wide.