Needed something to store my Vallejo Paints and wanted to use as little room as possable. So created this so they can hold 8 bottle per rack and stack on top of each other. I have them stacked 8 high with no issues.
I can look into it but I do not own any Citadel paints at the moment. Will have a look around and see if I can possibly get ahold of a few and see what I can come up with.