Record Boxes?

[ChineseArithmetic]

I would recommend http://www.vinylbox.co.uk/

they are (or were) much cheaper than spybox

and the guy drove my order (60 boxes) to my house and helped me set them all up!

good service!

Those are a good cheap price, but are they safe and stable stacked on top of each other? It says 'modular', but there doesn't seem to be anything that fixes them together.