Essentially, vinyl planks (also called luxury vinyl plank – LVP), are long narrow strips of sheet vinyl. This is a flooring material made from polyvinyl chloride (PVC) sold in continuous, large, flexible sheets. Planks are typically 36 or 48 inches long with widths in the 6-inch range. Thickness ranges from 2mm to 5mm. Thicker planks are sturdier and more substantial beneath your feet. A thicker plank can also be used to cover up a mediocre subfloor.