A commercial gym refers to a fitness facility or center that is run as a business, where people pay a membership or fee to access its amenities and equipment for training and exercise purposes. Full definition
In my early commercial gym days, I used to do this: Sit down on a machine, do some curls, sit some more on the machine, look at my phone. (neatstrength.com)
You'll be able to use the exercises and routines recommended here to train in any decent commercial gym as well. (lasting-weight-loss.com)
You don't need to go to a big, fancy, expensive commercial gym to burn fat or get long term weight loss success. (truthaboutabs.com)