Designed to manage moisture in basements and other below-grade rooms, the DRIcore engineered wood subflooring system combines a 2-foot-square engineered wood panel with a rigid, moisture-resistant polyethylene sheet with raised dimples. The dimples create an airspace between the subfloor and concrete slab, and the panels fit together with a tongue-and-groove system. DriCore. 888.566.4522. www.dricore.com. Circle 463