15mm Grooved skirting is a contemporary and simple design made for modern homes. It's manufactured using premium moisture resistant MDF meaning imperfections such and knots, cracks and splintering are non-existent. The picture represents a skirting that is 150mm tall and 18mm thick. Note that the groove is 15mm wide x 5mm deep and starts approximately 20mm from the top of the board. This product is 195mm in height, 18mm in thickness and 4200mm in length. It has a primed (white) finish. It does not have a rebate (space for cables to hide behind skirting).