Excellent product for multiple usage, brilliant for storing or as I used it as a Guinea Pig Cage.
Using 3 packs I was able to make a raised guinea pig cage 2 grids by 6, which is huge. Once all clipped in properly the grids were very sturdy and strong. 

Very impressed with the product. Easy to use, they are a little stiff though but if they weren't stiff I doubt it would hold as well.