Technical 47-55 Chevy Panel Truck Wood Panel Question

Greetings from Canada.
I have been restoring a Panel truck with my father, its a 51 Chevy 1/2 ton panel. The intention was to rat rod it but there was just too much paint missing for us to leave it in good conscience.
Got a quote to sandblast, but need to get the wooden floors out first.
My truck has 2 large pieces of plywood as the floor, seam looks like it runs down the middle of the truck.
Does anyone know how to get the wood out of a panel like this? It seems to have some strips over the ends that are under the body that most trucks dont have.
I will add some pictures when I get home.
Also, Im new here so I apologize if I have posted this incorrectly.