Perferated CardBoard Skirting Protector (Yet To Be Named)

My invention is an "L" shaped peice of perferated cardboard that sits under Smooth Edge when laying carpet. The part of the "L" shape that points upwards, covers the skirtings so when you lay the carpet it doesn't get damaged. When you are finished you take the corner of the perferated cardboard and tear across, leaving cardboard invisible and there you go, undamaged skirtings. The Skirting Protector is recyclable, because its cardboard, and sustainable, because it comes from trees which get replanted.