Kwila Griptread Decking FSC 140 x 19mm SKU: 279705 MODEL: 4641 Error. try again later You've successfully joined the club $ 14 .57 lm Mitre 10 SAvailable at selected stores. Check your local store for details Variants Kwila is a popular hardwood decking that is naturally tough, durable and has a reddish-dark brown colour. Kwila is often considered a benchmark in decking. Features and benefits Tough and durable hardwood. Griptread. Low shrinkage. Less splitting or cracking due to tannins. FSC.