The Groove Series has a 3D relief with transverse grooves. The three- dimensional effect becomes even more evident with the incidence of light. The pieces fit perfectly together and the continuous relief brings sophistication and spaciousness to the projects, giving personality to the walls.
| Standard | Declared ASTM | |
| Water Absorption | C373 | <=20% |
| Break Strength | C648 | N/A |
| Scratch Hardness | MOH's Scale | N/A |
| Chemical Resistance | C650 | Unaffected |
| Group | SEE FAQS | 1 |
| Shade and Texture Rating | CTDA "V" | VI |
| Facial Dimensions | C499 | Pass |
| Range of Thickness | C499 | Pass |
| Warpage | C485 | Pass |
| Wedging | C502 | Pass |