Super 8mm Carpet Underlay - 15sqmBoost comfort and performance without breaking the budget. Super 8mm Underlay is a reliable, everyday underlay that improves the feel of your carpet while helping it perform better for longer. At 8mm thick, this underlay strikes the right balance between softness and support. It enhances comfort underfoot, adds thermal insulation to help keep rooms warmer, and provides reliable sound reduction all in a straightforward, value focused package. 8mm