At the time the two hangers were constructed it was the Santa Ana air station. The two hangers were the largest wooden structures in the world. Over 1000 ft long and 178 ft tall. The wood was made fire resistant with a vacuum process which infused salt into the wood. The six doors on each end of the hangers weigh between 24 and 29 ton each. Amazing engineering.
During the Korean war they hangers were turned over the the Marines and used for helicopters.

