Here's what I need. Something like a kallax, but 3x2 (which I know they don't do, but I'd be happy with a 2x2 + 2x1). But as it's going in my small damp bathroom, I don't really want a wood/laminated unit, I'd prefer it to be tough plastic, or even metal. It needs to sit longways, and be strong enough for a fish tank on top (don't ask...).
Does anyone have any ideas as to where I can buy such a thing?