The engineers carried portable saw mills with them and there was apparently ample trees as for instance, they built camps for displaced persons and for war criminals. They also built a large mess hall for the Potsdam conference.
They used wood from trees sawed locally. They also hire Germans to do a lot of work and according to Daddy, they were extremely hard workers.
Funny, I was talking to a co-worker and he told me they are still the same.
Unlike many other European countries that are more laid back about life, Germans are more like us when it comes to work.
(which is not necessarily a good thing, LOL)