The DS 150 seamer will seam architectural style 1 inch to 1 ½ inch rib heights. This is a single direction seamer that the finished seam is a double lock. Machine seams 35 to 40 feet a minute depending on the gauge of material. The thicker the material the slower the machine. At 24 gauge material the machine will run up to 35 feet a minute. Purchasing this machine will take 2 to 4 weeks for assembly.