>>12350517so will thin steel plate, and cover a larger area, and easier to roll big sheets.
forges can roll out, extrude steel at any size and profile.
20year old or so farmed timber is not a significant diameter, then shrunken.
that leaves a limited profile and size of material, which limits the uses.
if you cant commercially (less than 20 years) get 1m x 40m trunk, like you get steel girders, you cant build sky scrapers
