I have enough oak planks to finish one side of the compost heap, but not the rest. So I went to our local DIY to price up something to make up the other dividers. A cheap option would be to use chicken wire, but I have concerns that it would get damaged too easily, so if wood cladding is not too much more expensive, I'll use that instead.
French for cladding: bardage (m), and the cheapest bardage at the DIY is treated pine - it looks solid enough, it's identified as "bardage agri" (presumably for agricultural use), and it's just under 9 euro the square metre - not too bad. I need just a bit more that 2m square per divider, so we're looking at say 20 euro per divider. Only it's not expected back in stock until mid-December. I will have to wait.
I looked up the verb barder, and the most common usage appears to be in the phrase "ça va barder", which means something like "sparks will fly", "there'll be trouble", or if you prefer "the shit will hit the fan". Alternatively it describes loading something up, or covering e.g. a chicken with bacon, or armouring a horse or person. You always wanted to know that, didn't you?
Anyway, here's the outer side of the compost heap, clad in rustic oak panels and finished in Cuprinol "Woodland Green" waterproofer.