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Whisper Step®

Whisper Step® acoustical underlayment features unmatched, high-density support under luxury vinyl flooring. Whisper Step® provides a significant reduction in impact noise and can be used over most substrates.


  • MLF/LVT/Rigid Core with attached back
  • Laminate
  • Sheet Vinyl
  • Engineered hardwood
  • Solid hardwood


Noise Guard

Reduces impact and airborne noise in-room and between floors. Reduces up to 10 decibels of in-room noise and an overall improvement between floors of 25%.

Block-out® Moisture Guard

Prevents spills from getting into subfloor and allows moisture vapor to escape from beneath.

Mold & Mildew Guard

Fresh Dimension® antimicrobial works to inhibit the growth of mold, mildew, and odor-causing bacteria.


Makes hard-surface flooring more enjoyable.


The class leading extreme density not only resists compression but will perform for the life of the floor.

Easy Installation

Lays flat and helps mask minor subfloor irregularities; can be used above and below grade.


Composition Made of High-Density Synthetic Rubber
Thickness 0.056" (1.42 mm)
R-value 0.02
Color Green
Moisture Barrier Block-Out® Moisture Guard
Dimensions 36" x 33.33' / 54" x 44.44'
Sq Ft per Roll 100 / 200
Sq Yd per Roll 11.11 / 22.22
Roll Weight 29 lbs. / 58 lbs.