Tredaire Softwalk 15sqm PU Foam Carpet Underlay: 5/6 Extra Durability, 6/6 Premium Comfort, 9mm Thick, 2.69 High Tog, 1.37m x 11.00m Roll Suitable for stretch-fit installation of carpets. Perfect for lounge, dining room & main bedrooms. Also suitable for stairs. Tredaire Seventh Heaven is the most comfortable 9.00mm PU carpet underlay on the market. This high performance foam carpet pad provides excellent comfort & carpet protection around the home. Excellent at ensuring a warm & cosy room Softwalk's noise reduction properties is ideal for those who want a PU foam underlay that offers an acoustic flooring solution as it has a very good noise suppression rating of 39d B. Only 15.8kg per roll.