The difference between Q-Shades Canterbury and our standard Q-Deck Canterbury decking is that Q-Shades products are prestained before the treatment process with a translucent Pebble Grey colour wash. This enables a painted finish that retains the natural grain of the timber. Its finished size after machining is 27 x 144mm and is a reversible profile. This Deckboard can be used Grooved side or Smooth side uppermost. Our softwood decking products are manufactured from high quality scandinavian softwood, and further graded on site. As a result of the preservative treatment process Q-Shades Pebble Grey products display subtle green tones that become more prominent upon exposure to ultra-violet light and diminish over a period of 12-24 months, slowly appearing more grey during this period before weathering gracefully thereafter. We recommend the 3.9mm x 63mm Stainless Steel Screws in Pebble Grey Alongside this Product.