This NFL one is the first one that I made for my boys~before I discovered white paint pens!!!!. I painted it by hand with a tiny brush~crazy I know. (sorry for the bad photos)
The actual measurements that you will use, depends on the size frame that you have.
I started with a piece of hardboard and painted it with chalkboard paint like I did here. (To fit the frame, I had it cut to 20 1/2" x 27 1/4" at Home Depot.) After the paint dries, lay the board horizontally, and measure the point in the center (mine was 13 3/4"). With your pencil,you will want to break it into a total of 12 sections starting at your middle point. I measured each section to be 2 1/4" wide. I added 1/8" more to each end zone.
Draw your lines, and then paint over them with a white paint pen and a straight edge. After the paint dries, you can erase your pencil marks.
Paint your frame if you haven’t already done so.
Print off your team labels “stickers” and place near each end zone.
Pop it into the frame (I nailed it in place), and you’re done! Make sure that you pick up some chalk and an eraser so that the boys can draw their own “plays” or whatever they want! (check the dollar store)
Just in time for the Super Bowl!!!