I've wondered about this for some time, so maybe someone here knows the answer! I've seen loads of adverts on TV for modern style oak stuff, dining tables, chairs, chests of drawers etc. There's also a huge Oak Furniture store in Norfolk. Now I know that oak trees take decades if not hundreds of years to grow, so how can the wood be 'responsibly sourced'? Once a tree has been felled, another won't take its place for less than about a century.