Ratner Steel is a full line flat roll sheet service center located in Roseville, MN and Portage, IN. For over thirty years ou ... r areas leading fabricators, OEMs and regional service centers have put their confidence in Ratner Steel to deliver sheet products of the utmost quality, reliability and service. Why choose Ratner Steel Supply? Because we offer the best of both worlds. Our customers have available to them the unmatched value of honest customer relations of an established mid-sized privately owned service center, with the state-of-the-art capabilities of the largest publicly traded corporations. Give us a call today and find out for yourself what we have to offer. read more