I have shelving that is perfect for a garage. All of it is free standing and the shelves are adjustable for height.

One set is older, but works well. I got it from a warehouse. Looks older, made of steel. Would look good with a little paint but in pretty good condition.

The rest is very nice and heavy duty. It is designed to be configured any way that you want. Only caveat is that i have no more uprights. The uprights are just pics of steel with slots in then.

Located in lugoff.