For an affordable granite countertop, our EZ Tops are sure to please. Large format granite tiles are 18â x 26â inches and have three polished edges, giving the appearance of a granite slab. The polished edges give you a clean, finished edge without having the purchase expensive and fragile edge pieces. The large format granite tiles are rectified to allow the tiniest grout joint for the least amount of seams possible. A great choice for a granite slab appearance without the cost.