I think you are looking for black pipe not BLACK galvanized. Black pipe and galvanized are two different types of pipe. True, black pipe is used for gas and other things, but galvanized should never be used for gas as galvanized pipe will " flake " off and plug up the very small orifices at the appliances. I also could not find it her locally a while back, but you might try asking a local hardware store to order it for you. They come in 20 ft. lengths, but are often cut in half to 10 ft. for easy storage and transportation. For shelving, go ahead and use galvanized pipe, no problem. It may cost a bit more and the fitting you will need are available in galvanized. Make sure they have the round floor "mounts" that your 1/2 or 3/4 pipe slides into that secures the entire pipe bracket to the wall ( or floor ).