Depends on the wood. Osage varies in quality. If it is top notch osage, I generally don't go as wide as 1 1/2" for a 60 pound bow. Perhaps I would if I was going shorter. I've made em 66" ntn, 1 1/8 - 1 1/4" wide, tapering from flares to tips, fully radiused belly, and at 60 - 65# @ 29" and showing very, very little set after thousands of shots. One such bow has been my favorite since 2004. Her limbs consist of 2 1/2 growth rings. That's mah squirrel bow :^)