Sonex® Squareline Acoustic Ceiling Tiles let you create a ceiling in a simple design that is both attractive, durable and modern. Sonex® Squareline acoustical tiles meet ASTM E84 Class 1 requirements. These durable galvanized metal tiles provide a modern, high-tech look for any project. To add absorption behind these tiles, simply place an acoustical backer such as fleece, polyester tiles, acoustic foam or other acoustical material on top of the tile. These metal ceiling tiles come in standard chrome or black metal panels to create a unique design. Panel sizes are designed to easily install into any standard suspended ceiling system.