Thanks, that’s helpful1. My plan is to put 1/4” minus on top of 3/4” gravel in the high traffic area that tends to stay wet too long. Inside their stalls I do have rubber mats and shavings. Mostly they are free to go in and out, but with our recent weather (it keeps raining!) I have had to keep them in over night a few times. I’ll show pics when I’m finished. Thanks so much for the feedback!