Will
the woodworm be in these. ie. do woodworm like chipboard and MDF. The
chipboard card racks are plastic coated except for the bottom and back
edges, as its only the rough end grain that is exposed its impossible
to see any flight holes.

"Another point worth noting is in relation to plywood. It is frequently
thought that plywood is extremely prone to woodworm attack. While this may
have been true many years ago when plywood was made with casein adhesives,
modern resin-bonded plywood is unlikely to be attacked, and the same holds
true for other man-made boardmaterials such as OSB, MDF or chipboard"