It depends on which is most suitable for the installation. With WPC flooring, a thinner plank may be perfectly acceptable in areas of low traffic, whereas a thicker flexible luxury vinyl plank flooring is probably desirable in lounge or other high-traffic areas. However, SPC can be very tough, despite being comparatively thin. It’s important to consider what happens at the transition between rooms. Choosing a vinyl plank that is too thick can lead to problems with leveling at the doorway.