The term mullion may be something you've heard of and you may have a pretty good idea of what it is. Or you may have never heard of it and have no clue about what it could be. Either way, this article is meant to teach you what a mullion is and where it is most commonly used. A Complete Guide to Mullions A mullion is a part of a frame...

An astragal is a piece of hardware that is used on a pair of doors to seal the gap between the doors when they are closed. Astragals are different from a mullion because the astragal is fastened to the door itself. A mullion is attached to the frame and the doors stop against it. Mullions can, however, provide more security than an...

Installing door hardware is time consuming and complicated. Not to mention, door hardware comes in boxes of all shapes and sizes that can get unorganized on the job site resulting in lost hardware. Coordination can also be a headache because doors are often installed nearer to the end of the project when the schedule is compressed to meet...

The Americans with Disabilities Act (ADA) and ICC A117.1 Accessible and Usable Buildings and Facilities have certain standards for doors and hardware to provide better access to buildings. Here are just a few quick notes to be aware of. Clear Width Door openings are required to have a minimum clear opening width of 32 inches. The clear...