I didn't curl inside the rack, but I simply took the bar off it, and worked just outside. I decided to do it because I wanted to use 5lb increments, I like the thinner grip, and I didn't want to use the ez curl bar. I could've taken a bar off one of the benches...but decided to use the squat rack since it's least likely to be used. Not a big deal imo. If some guy wanted to use the rack, I'll simply move out of the way...and he can grab a bar some where else. Perhaps the bar in the power rack behind me.