Furring channel Also known as cross furring or omega are Galvanized lightweight steel sections to be used as furring channels for conventional drywall ceiling and wall linings systems. They run perpendicular to the main ceiling channel and are connected to it with a wire connection clip. Furring channels are used to support the ceiling panel (Gypsum Board). Deep dotting at the web allows for faster screwing times when cladding gypsum boards. Product Thickness Range: 0.35 - 1.00.