Dorsal LLC (aka Door Sail) is your full-service sail loft and canvas shop. We specialize in custom sails,marine canvas and upholstey supplies in Sturgeon Bay, WI, for commercial and residential customers. At our state-of-the-art facility, we are capable of computer-assisted sail design and cutting. We are also fully invested in digital 3D-modeling to design and cut custom Biminis, Dodgers, full enclosures, and sail and boat covers of all sorts.