Frelonic Stall Mats or Interlocking Mats?

Anyone use these for their stalls? I found a thread from 2008, the couple of responses said they wouldn’t use them in stalls but good for temporary use like at shows. I was looking at them for use in permanent stalls. Was hoping they would work since they are lightweight.

Also, anyone recommend interlocking stall mats or no? We’ve had issues with our stall mats (non interlocking) shifting around over the years, they are so heavy it’s impossible to move them back in place. They were custom mats 6’x12’ size, so only 2 mats per stall but they all have shifted around.

I bought these mats for two stalls in 2006. The mats held up well, BUT when the temperature got warm in the summer, the mats would expand and then buckle. I would drag them out and have to cut the outer ones back so they would fit again. It was a royal PITA.

I would not buy these mats again.
Good luck in your search.