Pergo Elements Ultra Prestano, a 8.34" x 54.34" x 14 mm laminate plank with an attached pad for thermal insulation, cushioning and sound barrier. The Prestano collection has a locking system, and the Signature texture, premium texture and high-definition clarity finish. GenuEdge Technology, pressed bevels on each plank to protect the core from moisture and enhance the hardwood realism. A 6 mil vapor barrier is required when installing over concrete subfloor.