Schweiss Doors leads the construction industry with its one-piece Hydraulic doors. Builders like the clean, yet rugged design of these sturdy, yet smooth and quiet-operating doors. What sets us apart and makes us stand out in the market is our patented robust wrap-around hinge design with grease zerks; double push tubes, spherical bearings, hydraulic windpins and heavy-duty cylinders that provide super stability. These big doors are in demand for agricultural buildings, aircraft hangars, residential designer door use and more. As one builder commented, "Hydraulic doors with the Schweiss name, it doesn't get any better!"