Cairwell Oak 1.98m2 Engineered Hardwood Flooring PackCairnwell Oak is a classic hardwood flooring that suits a range of different rooms. The brushed finish enhances the nautral beauty and grain of the engineered planks. Natural grade will potentially contain a large number of boards with most characteristics present. Knots are likely to be slightly larger in size than Select and colour variation in the timber to be expected. Sapwood is possible and checks and filler are likely to appear in most boards.