Im building a few elments from CWU, anyways read that its a good idea to base the 2nd floors, was wondering if 3mm foamcore would be enough for a 2nd/3rd floor or if i should stick with 5mm?? just dont want the 2nd story floors to warp because the foamcore is to thin.

thanks for the help

I dont have CWU, so you can just ignore this post when someone who actually knows something posts, but I think you should stay with the 5mm. All of the WW stuff I own is set up for 5mm, so I think it would be best (plus, it's super strong). But keep in mind that I know next to nothing compared to some of the other guys on the forums...

Sacretis