This post has been edited to clarify and correct some earlier information.
The Panel truck “boards and strips” setup was used through 1949.
From 1950 to 1955st, Panel truck rear floors were 3/4” plywood with grooves for the metal strips.
1947-1954 Suburban's had plywood floors (with a mat on top - no grooves)
Pickup beds were different dimensions from Panel and Suburban floors.
The wood is not interchangeable.
Last edited by tclederman; 05/31/2019 1:27 PM. Reason: corrected and clarified information