Imported softwoods and hardwoods

Embodied Energy
Where possible it is better to obtain timber from UK sources. The distance timber has to travel from forest to site can dramatically effect its level of embodied energy. The BRE estimates that UK timber can embody as little as 0.52 GJ per tonne, whereas imported timber can embody as much as 7.1 GJ per tonne.

FSC certification
Always specify FSC accreditation for new timber and insist on chain of custody certificates. The availability of FSC sourced timber is variable. Timber merchants can often supply both certified and un-certified examples of the same species. Before specifying, check with an appropriate merchant as to availability. Merchants supplying a particular species can be found using the TRADA species database. Most UK sourced timber is FSC accredited.

Reclaimed timber
Using reclaimed timber can be both cheaper and more environmentally friendly than its virgin counterpart. Typical uses are in floorboards and studwork though using reclaimed timber in structural situations is not uncommon. The Salvo website provides listings of reclamation yards region by region. It is usually advisable to allow for long lead times to allow for the contractor to obtain adequate supplies.