PVC or XPVC are the best choice. There is no pvc sheet supply around here, and the shipping was going to be insanely expensive, so I went with cabinet -grade oak plywood. WAY better than melamine, but I had to prime it and waterproof it and it is super heavy, but if you can’t get pvc sheets for some reason, I recommend getting cabinet grade plywood and water-proofing it.
Next rack I build, I’m going to check again to see if I can get my hands on pvc sheets.


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