The edge detail on ceiling tiles assists in concealing or emphasize the tile grid. Edge details contribute to the overall aesthetic of ceiling tile installation. Within Metal Great Lakes Tin Ceiling Tiles, the edge detail options include Square. Check out this popular option, Check out the product with the highest review count, the Jamestown 2 ft. x 2 ft. Nail-Up Tin Ceiling Tile in Antique White (Case of 5).