1/4 Inch Cork Sheet Underlayment

$95.00 $75.00
Cork Underlayment
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  • 6mm (1/4 Inch) Cork Sheet Underlayment
  • Pre-Cut cork sheets 1/4″ x 24″ x 36″
  • Easy Installation - Less Waste
  • No bubbles during installation
  • Each sheet covers 6 sq ft
  • Premium European Cork

Sizes Available:

  • Please call 1-800-344-2675 for availability. 50 sheets of 1/4"x 2'x3' for total coverage of 300 square feet. ($1.24 per sq ft.)
  • 10 sheets of 1/4 in. x 2 ft. x 3 ft. for total coverage of 60 sq. ft. ($1.48 per sq ft.)

Cork Direct’s Premium 1/4″ Sheet Underlayment is available in packages of 50 or 10 sheets.  Our cork can be used in commercial or residential applications.  Each sheet of 1/4 inch (6 mm) cork underlayment measures 2'x3'x 1/2", and covers 6 square feet. A box of 50 sheets covers 300 square feet.  The box of 10 cork sheets covers 60 square feet. 

Cork Sheet Underlayment is an effective and economical method to provide an acoustic barrier for flooring materials. Our premium cork sheets are environmentally sound and quick and easy to install.  Cork underlayment will not deteriorate over years of use.


  • 1/4" Cork sheet dimensions: 1/4″ x 24″ x 36″
  • Cork sheet underlayment is compatible with tile, porcelain, stone, laminate and engineered click wood floors
  • Cork underlayment is a fire inhibitor.  It does not spread flame or release toxic gases upon combustion.
  • Provides sound reduction
  • Provides cushioning
  • Prevents stress cracks. Crack isolation protection resists substrate cracks from coming through and cracking tile
  • Cork underlayment does not require an overlap as it is not a moisture barrier
  • Cork is naturally anti-allergenic, creating a healthy indoor air quality
  • Cork underlayment will not deteriorate over years of use.

Cork Underlayment Coverage

Each 1/4" cork sheet covers 6 square feet. The 50 sheet carton covers 300 square feet per box. 10 sheet carton covers 60 square feet per box. 1/4″ 6mm Cork Acoustical Ratings:


Ceramic Finish Ceramic Finish Wood Finish Wood Finish
Concrete Slab 8″ 58 60 56 62
Concrete Slab 6″ 53 58 54 59
Concrete Slab 4″ & Steel Deck 60 64 60 65
Wood Joist Construction 54 59 54 60

Cork Direct warrants its products to meet all published specifications and to be free of any and all manufacturing defects. No other warranty is expressed or implied.

The finish of all CorkDirect tile and plank flooring is warranted not to wear through under normal use at any time during the life of the floor. “Wear-through” is defined as complete finish removal on any amount over 3% of the total installation. This non-transferable warranty applies only to the original purchaser.