Located in Tampa, Florida, established in 1996, Hollow Metal, Inc. is specializing in the production of custom metal frames and doors. HMI is locations in Tampa, Florida and is fully staffed with quality minded people to handle any size project. Hollow Metal, Inc. is a member of NAAMM, HMMA and has manufacturing procedures to produce hollow metal in compliance with Underwriters Laboratories. Our commitment is to manufacture a complete line of the highest quality custom fire doors and frames available in the market. Our engineering and production departments place great emphasis on details that are rarely visible in the finished product. As a result of our quality control, HMI's product has been recognized by many authorities. We are gratified by the acceptance of our product in large municipal installations.