Does General Steel supply “roof only” open wall buildings? Follow Yes, General Steel can supply carport-like structures. If you would like more information about what we provide in that area check out our carport page on our site here. Related articles Can I use my own contractor to construct the building? Can I lock my steel price through General Steel? Is the warranty transferable if I sell the property Can I use a siding other than metal siding? Can I see the dimensions of my building on my land to scale? Comments 0 comments Please sign in to leave a comment.