GridMax Ceiling Grid Cover Kit-100 Sq. Ft. kits work on any 15/16-inch -wide ceiling grid system as the components are factory-cut to standard grid dimensions. Works for 2’x2′ and 2’x4′ ceiling tile grids. Pre-notched main covers provide seamless transitions at cross tee intersections. Kit includes: 12 – 4 ft Wall Brackets, 14 – 4 ft Mains, 28 – 2 ft Cross Tees.