The Armstrong 2907 Shasta Ceiling Tile is a square lay-in ceiling tile made of fiberglass, measuring 24 inches in width and 48 inches in length. It features a grid size of 15/16 inches and is designed by the trusted brand Armstrong. This ceiling tile is lightweight, weighing 20.8900 pounds, and comes in a classic white color. Perfect for ceiling replacement or renovation projects, this ceiling tile is a durable and stylish choice for any room in your home or office. Made in the US, this ceiling tile offers a sleek and modern look for any space.