Open Gym is just how it sounds. Â Industrial Athletics, the Home of CrossFit Alloy, is open from 9am to 11am. Â Open Gym also means you can come to the box to do what you want. Â Do you want to do a WOD you missed? Â Have at it. Â Do you want to work on some body weight movements? Â We can help at Open Gym. Â Or, maybe you just want to socialize. Â That is cool too.