MDF is the most widely used material for windowboards throughout the building industry. Being a defect free, man-made material, MDF (unlike natural timbers) won't warp, twist, split or crack. This gives MDF windowboards a longer life and also makes it by far the most cost effective material to build with.All of our MDF profiles are available pre-primed saving you the gruelling task of sealing your board. Pre-primed boards will deliver you a classic, white skirting board colour which will complement any room and provide a solid base for any other colour.