At first I wasn’t happy thinking the bottom foam piece had to be screwed on, it is a very thin backing and at first I didn’t realize the foam was adhesive. I tore it trying to use the screws to hold it on, then I got smart and realized it was a sticky piece that just stuck over the top of the screws. Duh! It’s not hard to put together even though you don’t get instructions... but I always make things extra difficult. So now I’m here letting others know how to put this thing together, incase they’re a little extra special just like myself! Lol