Cel-Line Metal Plank Security Ceilings by Gordon Corrections Division are made specifically for use in correctional and justice settings. The heavy gauge steel or aluminum planks with matching angle and tee suspension systems are ideal for unsupervised, high-security environments, including cells, holding areas, showers and toilets, visitation areas and dayrooms. The shiplap design prohibits passage of contraband to the plenum, and all components are factory finished. Plus, Cel-Line Metal Plank Security Ceilings are Green Building compliant, IAQ friendly and have a Class A rating when tested in accordance with ASTM E84. Custom sizes and colors are available.