The hydraulically operated, Hydroswing Overhead Door offers a replacement alternative to a farm shop/storage facility's hard-to-open sliding or roll-up door. Custom-manufactured to fit openings up to 60 feet wide and 20 feet high, the door comes in its own frame to ensure easy installation, tight seal, and faultless operation. Headroom loss for mounting is minimal—5 inches if inside-mounted, none if outside-mounted. The power unit is 220-volt, 2- or 5-horsepower (depending on door size), self- contained (housing pump/valve/reservoir), and fitted to accept a tractor's hydraulic coupler (allowing operation in case of power outage). Optional features include: windows, walk-thru entry door, and remote control opener.