I’m wanting to lay vinyl planks in my custom built enclosed box trailer. I will need to put down a hard base otherwise the planks will just pop off if laid directly onto the metal floor. I was thinking the best type of wood would be marine grade plywood as it won’t expand or warp if it gets a little wet if there’s a little leak. The trailer is not being used to transport bikes or rubbish and won’t require to be hosed out etc. Are there any other materials I could use instead and width should it be. I was thinking the 6mm but 12mm might be stronger and more resistant to movement. Any ideas are appreciated.
