Hadn't heard of this before, more expensive than Sweet PDZ.Horse Fresh by Standlee
I use straight PDZ, <1/4" deep, sift it all daily.
Here's some posts about it, they're kind of old, but changes are noted.
...and the threads these posts are in has a ton of examples of poop boards.
https://www.backyardchickens.com/th...s-poop-pictures.621363/page-111#post-13179595
Updates:
https://www.backyardchickens.com/th...s-poop-pictures.621363/page-178#post-18966048
https://www.bedbathandbeyond.com/1/...ch-x-9-inch-mesh-drawer-organizer-silver.html