TILE & STONE BASIS Style Number CS21W CS20W CS23W CS22W Construction porcelain porcelain porcelain porcelain Tile Type floor tile floor tile bullnose basketweave mosaic Tile Size 16" × 32" 12" × 24" 2.75" × 12" 12" × 12" × 2" Technical Wear Rating Group 4 4 4 4 Break Strength > 350 > 350 > 350 > 350 Water Absorption % < 0.5 < 0.5 < 0.5 < 0.5 DCOF > 0.5 > 0.5 > 0.5 > 0.