With maple I would probably back it to be on the safe side, though it probably doesn't need it. I just posted a little hickory bow I made a while back, which I didn't back, but it's longer, and draws lighter. I made it so all three of my boys could learn on it, and then it will end up with the 5 year old when I finish bows for the 8 and 11 year old boys. My first bow attempt was a maple board bow, and it raised a big splinter off the back, even after I backed it with silk.