Large format boards for a beautiful deck
Redwood Decking Timber
Redwood is a remarkable deck material in almost every way; it is very stable, straight, and its heartwood is naturally resistant to wood boring insects and weathering without the use a preservative chemical.
Its fragrant earthy reddish brown heartwood gives it its name. If left unfinished Redwood will initially turn red black and then slowly turn into a silver gray.
Its high stability and our 42mm board thickness means no cupping and warping which is commonly seen in treated woods. It is prized for its low shrinkage rate, so splitting is minimised.
Redwood fastens and machines well but you need to pre drill holes in boards to prevent splitting. Its milled and machined surface accept stain easily. It is recommended that you use a protective finish with a water repellent, mildewcide and Ultraviolet inhibitor.
Deck life expectancy
Redwood can last over 30 years on a well-maintained deck. Redwood is the most fire-resistant decking material on the market. Its use as building cladding is credited with limiting the Great Fire following the 1906 earthquake in San Francisco. Redwood has been historically the most popular deck material in the US because of these properties.
In the US because of a limited supply and environmental concerns it is now less available but in New Zealand we have a fully sustainable Redwood supply. The New Zealand Redwood Company plants 800 hectares every year ensuring this wonderful resource will always be with us. Redwood decking material is available at LAND Milling in all profile sizes. We recommend that Redwood decks be 50mm thick boards to allow for its softer composition.
Decking Timber Grades
Heart Premium – This is a premium grade that offers knot free surfaces. Because of its high expense it is usually only used for rails and trim on decks. Clear Heart grade contains no grading defects. It is normally certified as Kiln-dried.
Heart Tight Knot Grade – Tight Knot Heart is graded for strength allowing for green or tight knots. The knots are graded to ensure they do not exceed in size 30% of the face of the board. This is also the most popular timber choice for cladding.