Underlayment 1.8 cm. (61x244cm). Knife & Groove. ***

Underlayment construction board in 18 mm thickness of Elliottis Pine. This is a smooth floor board with a veneer layer. The Elliottis Pine boards we offer in 18 mm thickness are provided with tongue and groove (T/G), the 9 mm boards are without tongue and groove. Because of the tongue and groove, the boards fit together better.