Porta has a number of timbers suitable for outdoor applications including Cumaru and H3 Treated Pine. It is important to determine whether the application is above ground or in-ground as the durability class of the timber will determine its suitability. Porta’s moulding range includes H3 Treated Pine which is suitable for above-ground exterior applications, having a natural durability class of 30 years above-ground. Hardwood such as our Tasmanian Oak timber is also suitable above ground with a natural durability class of 7-15 years above-ground. For more information and FAQ visit our Timber page.