How much or how little a piece of wood shrinks or swells depends on the wood species, orientation of the growth rings and changes in moisture content as a result of the level of temperature and humidity – the rain and sun being key factors. Rain causes the wood to absorb water and the sun dries it out, leading to expanding and contracting of the wood which can cause splitting and warping.
Splits are most likely to occur in hot weather but often these will shrink or ‘heal’ back when the humidity rises or the weather is wetter. Warping occurs as a result of different layers of wood expanding or contracting at different rates but unfortunately this is less likely to remedy itself, however, these changes do not affect the structural integrity of the fence.
Supply & Erect