@Blooie Here are the photos of my set-up you requested.
As I previously described, I used 2x6 a foot long cut from 6 inches at the front to 4 inches at the rear
with a 2x4 sixteen inches wide across the back. Today, I added a piece of 2x2 under the sides to raise it,
shown in the second photo, as they were getting too big. I placed the cookie sheet on top and then added
the heating pad on that, and wrapped a towel in a single layer under the cookie sheet then folding the excess
on top. My thinking was the cookie sheet would help eliminate any hot spots and help distribute the heat evenly.
I added a paver for them to file their beaks on and they really seem to like it. They were scraping
their beaks on everything in the brooder so I thought maybe they needed to hone their beaks and picked
that up at Home Depot for 50 cents and that's all they use now.







As I previously described, I used 2x6 a foot long cut from 6 inches at the front to 4 inches at the rear
with a 2x4 sixteen inches wide across the back. Today, I added a piece of 2x2 under the sides to raise it,
shown in the second photo, as they were getting too big. I placed the cookie sheet on top and then added
the heating pad on that, and wrapped a towel in a single layer under the cookie sheet then folding the excess
on top. My thinking was the cookie sheet would help eliminate any hot spots and help distribute the heat evenly.
I added a paver for them to file their beaks on and they really seem to like it. They were scraping
their beaks on everything in the brooder so I thought maybe they needed to hone their beaks and picked
that up at Home Depot for 50 cents and that's all they use now.