The Australian Trellis Door Co (ATDC) is a 100% Australian-owned company that manufactures and installs a broad, world-class range of security solutions — from expanding trellis doors and portable barriers to folding closures, roller shutters, and operable walls — all made in their Condell Park, NSW factory.

Their products are engineered for high strength and functionality, featuring innovations like triple-point slam locks and steel framing, and are trusted across commercial, industrial, retail, and institutional projects nationwide.