Commercial
Steel vs Hollow Metal Doors: What’s the Difference?
Steel vs Hollow Metal Doors “Steel door” and “hollow metal door” get used interchangeably on almost every quote request we get — and most of the time that’s fine, because they usually are the same thing. But not always, and the difference matters more than the name suggests: gauge, core fill, and fire rating decide whether a door holds up
04/08/2026