Crossville Inc. introduces In-Side, which mimics the look and textural appeal of sandstone in a durable, low-maintenance porcelain tile panel. The collection comes in Pietra-Di-Cardoso Grigio, a gray offered in flamed or natural finishes, as well as Pietra-Di-Cardoso Nero, a nuanced black also in flamed and natural. The 3-by-9-foot sheets offer a 5.6mm thickness that allows for tile-over-tile installations with minimal grout joints.