H4 treatment allows the timber to be used in outside, in-ground applications. It is often used for fence posts, in-ground pergola posts and landscaping timbers.

*Please note: as timber is a natural product standard industry practise is to order 5% more than you need to ensure you receive enough usable product. This does not include wastage for cutting to size etc.

Also, like all timber products, there may be variations in the straightness of the timber and this is not a defect. Not all boards will be perfectly straight and ture, and it is common for some to require straightening during installation. This is a standard occurrence in building.

Timber may warp if not stored out of the weather on a flat level surface out of the sun and rain. Please ensure you store your timber properly as soon as you can after delivery.