Hi Lauramat! It can definitely be used in a shower, but for walls rather than a floor. We ship very regularly to the US, and we would be happy to send you a sample to see in person! Please send us an email (info @ Edgewaterstudio.com) and we can set that up!
BEAUTIFUL tile choice! If you have any more questions regarding your Steam Shower process, check out www.thermasol.com. Great new product options as well as a "Build Your Own Shower" option to ensure you do not miss a step.
Edgewater Studio
Katie McKinney