Before I make a final decision, if I use 50mm XPS foam as my base board, what is the best way to attach all the wiring underneath?
I've seen people have a 3mm ply and glue the foam to that and others that have just glued to the foam to the supports.
If I go without the 3mm ply, I thought about using cable nail clips and push them straight into the foam, not sure how long that would last, maybe drop some glue on the nail before pushing them in.
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