Author Archives: superioradmin

Installing door closers, a brief description.

Closers come in many different sizes, configurations, adjustment sets and they come from many different manufacturers. All of these manufacturers are copying from one another in what I can tell is the same 6 or 10 designs in a complicated soup of corporate chess. To outsmart patent infringement laws, they change their measurements to be […]

How many types of commercial doors are there?

There are many types of doors both in function and competition.  We cannot be completely sure on how many or what they are because the industry adds them whenever there is a need great enough to do so.  But we have listed what we are aware of and why, below: Hollow Metal Doors:  Hollow metal […]

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