Ships Canada-wide
Overview
3mm Cork Underlayment – 220 kg/m³ Density – 150 sq. ft. Coverage
Our 3mm cork underlayment is the lightest option in the collection, yet it delivers outstanding performance in comfort, insulation, and sound control. Designed for installation beneath laminate, cork, bamboo, hardwood, or engineered wood flooring, this slim layer helps preserve warmth and adds a subtle cushion underfoot.
Each sheet measures 24” x 36” (2 ft x 3 ft) and comes pre-cut for easy handling. Packaged 25 sheets per carton, a single box covers 150 sq. ft. Made entirely from natural agglomerated cork and bonded with water-based adhesives, this product is free from formaldehyde and toxins, recyclable, and environmentally responsible.
Why Choose 3mm Cork Underlayment?
-
Acoustic performance: compare the test reports for the complete flooring and underlayment assemblies.
-
Thermal Efficiency – Acts as a barrier against heat transfer, helping rooms retain warmth in cooler months and maintain comfort year-round.
-
Cork contains suberin, a wax-like substance that contributes to water resistance. Review product emissions documentation and moisture requirements.
-
Added Comfort – The elastic quality of cork provides a gentle cushioning effect that eases stress on feet and joints.
-
Sustainable Material – Harvested from the bark of cork oak trees without harming them, cork is a renewable resource with each tree yielding for up to two centuries.
Product Specifications
-
Composition: 100% Natural Agglomerated Cork
-
Thickness: 3mm (approx. 1/8”)
-
Sheet Size: 24” x 36”
-
Carton Coverage: 150 sq. ft.
-
Manufactured in: Portugal
-
Eco-Friendly: Formaldehyde-free, recyclable, water-based binders
-
Acoustic Ratings (field tested):
Condo or strata? Download the Condo & Strata Acoustic Approval Kit — per-thickness test statements, assembly ratings, certificates, and a cover-letter template your council can file.
Applications
-
Excellent underlayment for laminate, cork, bamboo, solid hardwood, and engineered wood
-
Suitable for both floating and glue-down floor systems
-
Compatible with ceramic tile and stone installations (with proper method)
-
Enhances performance of radiant floor heating systems
Flooring
Cork Underlayment
Supplies & Guides
Edgar L. (verified owner) –
Used this under vinyl plank in the basement suite. Two layers plus this and the drumming is gone. Installer said it laid flatter than the foam he usually gets handed.
Cara K. (verified owner) –
Used this under a floating cork floor in the rental unit. Rolls out flat and cuts with a knife, no crumbling at the edges. Took a week longer than quoted to ship. Would buy again for the next room.
Jolene F. (verified owner) –
Used this under vinyl plank in the second floor. No smell, and it doesn’t compress into nothing under the planks. Installer said it laid flatter than the foam he usually gets handed.