Cork Underlayment – 12mm (1/2″) – 102 sq.ft.

12mm Cork Underlayment – Superior Noise & Temperature Control

Looking for a reliable way to enhance comfort and quiet in your home or building project? Our 12mm thick cork underlay is a high-performance solution designed to deliver excellent sound dampening and thermal insulation. Crafted in Portugal from all-natural cork, these sheets are durable, eco-friendly, and built to last.

 Product Highlights:

• Material: Pure agglomerated cork

• Nominal Thickness: 12mm (½ inch)

• Sheet Dimensions: 24″ x 36″ (2 ft x 3 ft)

• Carton Coverage: 102 sq. ft. (17 sheets per box)

• Carton Weight: Approx. 62.5 lbs

• Density: 220 kg/m³ ±10%

• Country of Origin: Portugal

• Installation: Suitable under engineered wood, hardwood, laminate, cork floating floors, and tile

Acoustic & Thermal Benefits

Cork’s natural honeycomb-like cellular structure is made up of millions of sealed air pockets, creating an effective barrier against both impact and airborne sound. In field tests, our 12mm cork underlayment achieved the following impressive sound ratings:

This makes it a fantastic choice for multi-level homes, condos, offices, and anywhere peace and quiet matter.

At the same time, cork acts as a thermal insulator, keeping cold from creeping up through concrete or unheated subfloors. It also works well with radiant floor heating systems by reducing thermal loss, increasing energy efficiency.

Natural, Renewable & Safe

Our underlay is produced from sustainably harvested cork bark—no trees are cut down in the process. It’s bound with non-toxic, water-based adhesives, contains no formaldehyde or VOCs, and is completely recyclable at the end of its life cycle. A cleaner planet starts beneath your feet.

Comfort Under Every Step

Unlike synthetic alternatives, cork provides a cushioned feel underfoot that reduces joint strain and fatigue. It reflects body heat to create a naturally warmer walking surface—perfect for bedrooms, family rooms, and basements.

Where to Use

• Under hardwood, engineered wood, and laminate floors

• Beneath glue-down or floating cork flooring

• Under tile when properly installed with a decoupling membrane

• Ideal for high-rise condos, apartment buildings, home theaters, and nurseries

A Smarter Alternative to Foam Underlay

The Foundation of a Better Floor

With its outstanding acoustic ratings, insulating properties, and sustainable design, our 12mm cork underlayment is more than just a subfloor—it’s an upgrade to your entire living experience.

• Acoustical rating results below were generated from field testing:
  • IIC 75 (on 6” concrete without suspended ceiling)
  • IIC 89 (on 6” concrete with suspended ceiling)
  • STC 76 (on 6” concrete without suspended ceiling)
  • STC 90 (on 6” concrete with suspended ceiling)

Info & Guides

• MSDS
• Testing Reports