Yes, my contacts supply only responsibly sourced timber. Many communities grow timber as a cash crop and it is just not in their interest to abuse their resource. For example: in the French countryside I would buy woodland by the square metre and fell all of the mature timber without any need to seek a permit- visit the cutting site just a year later and the uncut, young trees have had an obvious growth-spurt and last year’s natural seeding has already grown to an impressive size. Every year France grows more timber than it cuts. An oak tree grows from acorn to felling size in about a human lifespan and once the cycle of growing and cutting is established and managed then the trees just keep coming. I am a bit of a tree-hugger and have total respect for this wonderful, natural resource.