"Red Iron" ... the industry nic-name for structural beams and channels that are the 'skeleton' of just about any commercial or industrial structure. We all have a minds-eye image of massive I-Beams gliding silently skyward from the tether of the overhead crane to become a part of a skyscraper and although real, there are less dramatic applications for structural beam and channel:

• Chiller Stands -Fire Escape Stairways and Landings
  
• Equipment Bases -Tower Enclosures
  
• Platforms and Catwalks -Mill Legs
  
• Clear-spans -Canopies

As a CWB certified shop (to CSA Standard W47.1 in Division 2.1) you have the assurance that your fabrication is what is required for your application. If your plant, facility or installation project has "structural steel fabrication" in the materials list, you should have "Stewart Steel" in your supplier list.