Chestnut wood on par with oak , but the blight got them many years ago, however on going work is trying to re establish them again so i,m
led to believe.
I chopped some old rotten chestnut the other day and inside was good wood about 8-9 inch dia and got sections on the band saw and cleaned up and now have usable blocks , amazing wood .
Now they import wood from Scandinavian country's for building but it is machined .
Yes the logs are very heavy, some houses here have not just slate on the roof but slabs of slate so the structure has to be hefty.