Responsible timber decking producers use sustainable timber and insist on the proper management of their resources. This involves the conservation of forests through the use of sustainable forest management techniques and renewal through re-planting schemes.
Timber is the only mainstream construction material that originates from a renewable source. The amount of sustainable timber coming from productive forest in Europe is increasing every single year. This is where the vast majority of timber for decking comes from.
If you want to fully understand the origin of your timber decking, ask your supplier to provide you with more details. Most responsible suppliers will be able to provide information to assure you that your decking has come from a sustainable timber forest that is being productively managed and regularly renewed.