This QuietWalk Premium Felt Underlayment (Model # QW300LV) comes in a single roll measuring 3' wide x 100' long, providing 300 square feet of coverage at 1.4mm thickness. Designed for use under luxury vinyl, laminate, and hardwood flooring, it offers moisture resistance, sound absorption, and thermal insulation. Item is in like-new condition in original packaging with no reported damage or missing components. Suitable for on-grade and above-grade installations.