These stall mats are safe when wet relative to other choices of flooring. They even work great under dog runs. We use these in our barn and they are durable and a sturdy thickness of 3/8 inch.

4x12 $75.00
4x16 $95.00

These stall mats are solid rubber. If you are interested, call Pam at 602 540 3890. As you can see, she keeps a quantity in stock and can help you protect your horse footing in the barn.