I think the plank floor is typical in a panel while the plywood is typical in a Suburban. But this is just based on my limited experience.

Both my Suburbans have plywood and both my panels are planks...


1955 1st GMC Suburban | 1954 GMC 250 trailer puller project | 1954 GMC 250 Hydra-Matic | 1954 Chevy 3100 . 1947 Chevy COE | and more...
It's true. I really don't do anything but browse the Internet looking for trouble...