Armstrong Ceilings Model 280C Plain White Mineral Fiber Ceiling Tiles in like-new, in-box condition. Each tile measures approximately 47.719" L x 23.719" W (roughly 2x4 ft standard drop ceiling size), with 8 pieces per box covering approximately 64 square feet per box. A total of 11 boxes are available, covering roughly 704 square feet. These mineral fiber tiles offer basic acoustic performance and a clean, flat white finish suitable for residential or commercial drop ceiling grids. No damage or missing pieces reported.