How does wood shrinkage effect Oz-Post?
Shrinkage in wood is a natural property, as moisture is absorbed and evaporated from the timber. This is not a concern as the Oz-Post housing fully encapsulates the timber post and also allows for drainage. It is recommended that the hardware be tightened 2-6 months after installation to assure the tightest possible connection. The use of a small amount of polyurethane glue is a great option to allow for a strong connection without the need to retighten the screws. Please review installation instructions for the model that you are installing for all installation options. Shrinkage is a far greater problem when considering posts that have been secured using concrete. As the timber shrinks (the concrete does not) a concrete container is created which inevitably will hold water, thus your timber post becomes submerged until the water drains, a great environment for fungal decay. This is one of the reasons why posts rot out before the fence pickets and rails. Oz-Posts protect the wood post
