The WhiteCap Dimpled Drainage Matting rolls are perfect for providing an additional layer for moisture drainage and added durability. The drainage matting is made of recycled content and meets ICC-AC114 Acceptance Criteria.

Learn more about the WhiteCap Crawl Space System and the benefits of becoming a certified installer at https://whitecapcrawlspacesystem.com/.

  • WhiteCap Dimpled Drainage Matting
  • WhiteCap Dimpled Drainage Matting

Product Overview

WhiteCap Dimple Drainage Matting is described as the installer’s "Best Friend." Use it once, and you won't want to do an installation without it. Turns the entire crawlspace floor into one giant kneepad that protects the vapor barrier liner from puncture and wear. At 25mil thickness, the dimpled drainage matting combines with 20mil Whitecap reinforced liner for a total of 45 mils of protection. WhiteCap drainage matting improves water movement due to the dimpled design, and may enhance the effectiveness of a radon system.

The White Cap Dimple Drainage Matting rolls are made of a high-density polyethylene (HDPE) that offers a strong resistance to hydrostatic pressure and excellent drainage. The dimples are aligned along a vertical and horizontal axis to rapidly channel water from grade to the footer drainage system. The stud shaped dimples provide an air chamber between the roll and its mating surface. White Cap Drainage Matting is considered a GREEN product due to the recycled content used to produce the sheets. Meets/exceeds ICC-AC114: Acceptance Criteria for Rigid, Polyethylene, Below-grade, Damp proofing and Wall Waterproofing Material.


  • Increased layer of drainage and durability.
  • Green Product.
  • Low-Temp Flexibility - Remains flexible when less than -22°F
  • Covers approx. 340ft2


  • Length: 6'9" x 50' (20m) roll
  • Color: gray
  • Thickness: .2952.
  • Available per roll or 12 / pallet
  • Compression Resistance: 729 lbs/in
  • Stud Height: .2968

Product ID

  • WC-DM

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Customer Reviews

Average rating for Nash Distribution is 4.98 stars of 5 stars - based on 30 reviews
Swainco Crawl Space and Basement Repair, from the Indianapolis Indiana area, has increased over 300% in the last 10 months. Nash has helped make that possible with their excellent crawl space products and customer service. They truly understand that there success comes from going the extra mile to ...
Ken S. - Greenwood, IN 46143

I love using your crawl space vapor barriers! They're so easy to work with!

Steven K. - Lincoln, NE 68504