· Daltile ERA 18 x 18 Unpolished Olos offered at $6.91 S / FT · covers 13.130 per S / FT · contains 6.000 per Box · measures 18.000 Inch in length · measures 18.000 Inch in width · is 0.375 Inch thick · weighs 59.000 lbs · in the Gray color family · composed of Porcela