Timber lawn edging can be found everywhere, and are quite common. A walk along a remote footpath or through a park and you’ll come across some form of timber edging. You’ll also notice that they are almost always rotten or split, this is because they typically last 5 to 10 years. In areas where foot or lawnmower traffic is likely to be common, you can expect a reduction in the lifespan of the timber as the exposed timber will be prone to wear and splinter. Modern preservatives can extend the life of timber edging to about 20-25 years. However, there are concerns that the chemicals used in the preservative are not suitable near edible crop, such as fruit or vegetable plants.
Timber edging is commonly used to hold in surfaces, such as gravel, resin bound or tarmac. Whilst timber edging is suitable to retain movable surfaces like gravel or a lawn, its tendency to move can be detrimental to any harder surfaces such as tarmac, often resulting in a cracked or deformed edge where the surface has warped.