My panel ended up being 29″ x 49″ before it was sewn. My final hanging ended up at 27″ x 53″.
I used another fabric remnant I’d bought in a scrap bag that was long and thin and cut it down to 29″ wide and 7″ high.
I ironed the fleece to the back side of the front fabric panel and then after sewing I ironed it from the back to fuse the back fabric down.
I placed my hanging loop along the top of my fabric panel with the raw edges meeting and then pinned the backing fabric down on top (right sides to right sides).