Water Brick Storage

Just wondering if anyone has used the water bricks from Shelf Reliance/Thrive Life?
I have bought several and decided finally to fill them but I wonder if I can put them directly onto my floor under my bed? We don't have carpet in our home we have a laminate flooring which resembles hard wood. I know you can't put water barrels or bottles directly onto a concrete floor but I just wondered if I needed anything between the bricks and my floor?


Thank you

Those bricks are cooler than a hovercraft made of bacon!
I dont know why you couldnt set them on most any surface.

Are those the water bricks that can be frozen? Cuz I'm thinking of getting some to stack under my deck.