This Bullnose MDF Skirting Board Cover can be used to cover existing skirting boards, eliminating the need to remove the old ones beforehand. This product will cover an existing skirting board up to 145mm in height and 19mm in thickness. The product itself is 170mm in height, 25mm in thickness and 3050mm in length. This skirting board cover is manufactured using premium, moisture resistant MDF. The picture depicts a 150mm high skirting board covering a shorter existing board. The design never changes size so the plain part of the skirting will decrease and increase as you change the height of the board.