One of the most common reasons to purchase steel fencing is for the durability it provides. Timber fences are strong, but unless they are treated, they can develop wood rot or develop an infestation of termites, which harms the integrity of the structure. Steel fencing, on the other hand, is built to last. It will not warp, rot or be eaten by termites. Colorbond® fencing, for example, is built with galvanized steel so it can withstand the wildest Australian weather.