We import all our timber. Mostly from Scandinavia and baltics. Some hardwoods from Brazil. But the whole timber global wholesale market is very centralised. Maybe not as bad as Intel/AMD/ARM but same order of magnitude.
Well, send some down south then. Never seen any at any timber merchants. Maybe should've said England instead of UK.
Does that self sufficiency translate to lower prices?
Amusingly, my now passed ultra-SNP uncle spent a lot of his life bemoaning the replacement of the contemporary beautiful Scottish desert with huge tracts of monoculture pine trees, changing the expected beauty of Scottish landscapes with tens of thousands of dense rows of trees planted 'for the English', in turn making another form of desert. He was right in that it wasn't pretty and not much of an improvement on a [human-] degraded landscape, but I always thought he should've looked a little closer to home to see who was profiting from all that stock. It was likely his neighbours (perhaps English), not London per se.
Sadly, a lot of the plywood I use comes... came from Russia. Replacements from elsewhere seems to be slow to trickle-through. A shame, because the Russian stuff was surprisingly good quality, for my needs.