Arran Oak 2.89m2 Engineered Hardwood Flooring PackArran Oak flooring is full of character and charm. The natural grain of the oak is enhanced by the UV Oil finish whilst filled knots and splits are visible. Super Rustic grade is likely to contain all characteristics across all boards with any size of knot and level of colour variation in the timber to be expected. Expect to see some sapwood as well as checks and filler used in a colour to complement these natural variances in most boards. Code