A+ Doors offers C.H.I. industrial rolling steel doors, coiling Fire Doors, Fire Shutters, Counter Doors, Grilles and Side Folding Grilles. Our promise is to deliver affordable, owner-friendly rolling steel doors that are reliable, architecturally pleasing and simple to maintain. Additionally, almost all of the materials that go into our doors are 100% recyclable post-consumer, making C.H.I. rolling steel doors an ideal choice for green sustainable buildings and LEED projects.