When it’s not raining, I feed my horses outside in their very large dry lot paddocks. I have large areas (about 18X24) covered with stall mats, where I dump their hay. The horses are fed separately. It took some trial and error to find the best locations in each paddock but I finally did. The only downside is one horse’s mats are on a very slight slope and the lower mats slide down just enough so that every day I have to wrestle them back in place. I’m trying to think of a way to safely tack them down and keep them from sliding. Any ideas?

It is a little hard to tell because of the shadow but this is her “pad”.
I did have to put a short panel of plywood on the west side because it is really downhill and that keeps things from departing. I just put in a couple T-posts (with caps) and a 3’ (wide) x 4’ (tall) piece of exterior plywood lashed to the T-posts. I board so nothing very fancy. That so far has held up for years also.
Susan
The mats under the overhang at my barn had a history of shifting. My husband fixed it by taking a huge nail (like 9" long and 3/8" diameter) and pounded that into the two high corners down into the base material (sand/stone). They have stayed in place for several years now with those spikes in the corner. I check them (spikes) regularly while I am out there cleaning to make sure the heads have not risen up to cause an issue and they are staying in place just fine.
Picture didn’t work :nonchalance:. I got a better picture but can’t get the darn thing to upload to my computer.
That’s what my husband wanted to try but I have nightmares about whatever he uses coming out of the ground and a horse getting impaled on it!