Examples of some of the spiral items that we can make. Our spiral forming machine is capable of 18 – 28 ga. galvanized, 20 – 26 ga. stainless steel, 0.032 – 0.040 aluminum. For large enough jobs, PVC coated and copper are also options. Pipe and fittings are built to SMACNA 2005 standards as specified on the plans or by the contractor.