Colour Line is a collection of highly saturated colours on a smooth surface of European oak. The wood planks consist of a top layer of European oak and an underside of FSC birch plywood. FSC European oak for the top layer is available on request. The European oak grain remains visible, while the planks are enhanced with unexpected colours. The colour treatments are applied in nine standard offerings. The Colour Line has an oil finish to maintain the look and feel of the real wood, while providing a protective seal. The plywood backing is adhered to the face using low VOC adhesive; no urea formaldehyde is added to the plywood. The oil finish is VOC free. Colour Line oak planks are suitable for indoor use, and are available in standard sizes of 20 mm thick x 180 mm wide, 20 mm x 240 mm, and 15 mm x 180 mm. Available lengths are from 1790 mm up to 2470 mm.