Ironmongery, door hardware and door furniture are terms used to describe the essential additions to a fire door blank and frame that make up a door set and help ensure it functions properly. Fire door ...

The torsion spring, not the operator (or motor), does the heavy lifting. Aesthetics aside, the big changes in today's 300-pound steel doors are in insulation. Tighter perimeter seals and sandwiched ...

This article originally appeared in the July 2020 issue of Security Business magazine. When sharing, don’t forget to mention @SecBusinessMag on Twitter and Security Business magazine on LinkedIn. If ...