This QuietWalk Laminate Flooring Underlayment (Lowe's Item# 1443097, Model# QW100B1LT) covers 100 square feet per roll. Designed specifically for laminate flooring, it offers superior sound absorption, moisture protection, and thermal insulation. Includes one full roll in original packaging with no damage or missing components. QuietWalk is a top-rated underlayment brand known for reducing impact noise and foot traffic sound transmission.