21 x 145mm precision machined hardwood decking is grooved on one side and reeded on the other, giving you the choice of finishHardwood Balau - Bangkirai - is the most commonly used hardwood deck board in the UK it is a very durable hardwood.It is a dense hardwood, heavy, strong and has very little knots that is well suited to deck construction.Balau is hows the beauty of wood showing a mixture of warm colours of golden browns, light browns and pale reddish-brown. This mix of wood colour tones tend to blend in well depending on the exposure of the deck to the elements.Yellow balau can be stained and oiled easily. Please note these are supplied as random lengths 2.1mtrs and longer (sold in 1m2 = 6.89 linear metre)This item is delivered directly to you from one of our suppliers, please see our Terms & Conditions for more details.