COMMERCIAL STRENGTH FOR RESIDENTIAL LAWNS Most mowers in this price range are stamped from flimsy steel and bolted together. But not this Bad Boy. This MZ Magnum is loaded with a 2˝ x 2˝ all-steel rail frame for its backbone, a lower center of gravity and industry-leading 3/8˝ steel front forks. Plus, there's the solid steel, all-welded deck, the heaviest deck you can get in this class of mowers. Magnum's deck strength is the stuff of legend. Made from 3/16 inch or 7-gauge steel with reinforced edges and additional ¼” side plates, it's durable and dependable day after day. Choose between the 48” or 54” deck, both features a baffling system to maximize airflow for greater grass lift and a cleaner cut.