What's the cheapest sort of panel boards (6x4 ideally) that we can use as flooring for a newly installed metal shed.
As there's no effective barrier to prevent water seeping in from its concrete slab, we're thinking of using a pond liner as a waterproof layer and cut down couple of 6x 4 panels to use as a flooring material.
What's the best type to use on cost/resilience basis? OSB (what used to be Sterling Board) MDF (thick or thin) Marine ply Chipboard.
I'm not really up on new board technology so any guidance would be appreciated. The shed will be used for storing tools / garden stuff.
Cheers all OG