Physical properties of timber

Durability

Dimensional Stability

Abrasion resistance

Shrink resistance

Strength

Flexibility

Durability of timber is the ability to perform its intended task for a required period of time. This means its performance when exposed to hazards such as decay (fungi) and insects (termites etc)

Dimensional stability refers to how wood shrinks and swells in relation to moisture gain or loss. In other words, how it “moves” consistently throughout its life.

Abrasion resistance refers to timbers ability to withstand abrasion, scratching and wear from various objects, tools and general use.

Wood shrinks when going from its green to a dry state as it loses moisture. Radial shrinkage in solid wood can vary from less than 2% for some of the more stable wood species, upwards to around 8%

Strength refers to timbers ability to withstand forces, pressure and loads before it will break.

Flexibility refers to woods capablity to be bent, without breaking.