Floor Underlayment 3mm with Vapor Barrier, 2 Rolls

Floor underlayment with attached vapor barrier creates a smoother, quieter base for laminate, vinyl, and wood floors while helping protect against moisture. Each 3mm roll combines heavy-duty recycled fiber with a PE film moisture layer to reduce hollow-sounding floors, soften footfall noise, and support stable plank installation. Two rolls cover large rooms fast, with seam tape for tighter joins and less rework.

• Delivers 37.2 m² / 400 sq ft total coverage to finish large flooring installs with fewer seams


• Blocks moisture with attached PE film vapor barrier to help prevent damp-related swelling and warping


• Reduces noise by minimizing hollow sound, footsteps, and furniture movement on floating floors


• Simplifies install with taped seams plus easy cut-to-fit 3mm padding for clean wall-to-wall coverage


• Fits laminate, vinyl, and wood flooring systems needing stable, supportive underlayment

Designed for quick-scan installers and DIYers, this underlayment keeps your floor feeling more solid underfoot while helping manage moisture from the subfloor. The wide roll format speeds layout, the seam tape helps hold alignment, and the durable fiber construction supports long-term performance in busy living spaces. If you’re updating multiple rooms or tackling a full-floor project, this 2-roll pack helps you cover more area with less downtime. Grab yours today and prep the surface the right way before the first plank goes down.

• Total coverage: 400 sq ft / 37.2 m² (2 rolls)


• Coverage per roll: 200 sq ft / 18.6 m²


• Roll size: 18600 x 1000 x 3 mm (732.28 x 39.37 x 0.12 in)


• Thickness: 3 mm


• Material: recycled fiber + PE film (attached vapor barrier)


• Color: Blue


• Net weight: 21.7 kg / 47.84 lb