It's not a conspiracy, there is a building boom, and public policy has run too many mills out of business. You still can't get a log out of the national forests, and timber counties in Oregon had to sue the BLM to get them to increase legally mandated logging. Plus, a lot of the mills have been shut down from the fires, and some big mills have been destroyed. We have been running about 1.2 million to 1.4 million housing starts a month. That's a lot of wood. The forests that burned are still on fire, and won't be salvaged until the winter rains put the fires out. Then there will be plenty of logs for two years, until they rot. After that, more mills will close.
There are still huge lumber trains leaving my county twice a week, of milled lumber and engineered wood products like glu-lams and TJIs. Some local lumber shipments go by truck, but the vast majority go by rail. Trucks don't have adequate capacity, either for size or weight.