81 - Glynn Johnson

Heavy-duty, surface mounted.

The lever arm of the Glynn Johnson 81 Series provides the most effective stop arm available. The box-shaped bracket contains a spring to absorb the energy of an opening door.

Built-in stop is standard and optional hold-open feature can be added.

• 81S = Stop Only
• 81H = Stop plus Hold Open
• Available in standard architectural finishes
• UL Listed
• 1-year warranty

Ordering overhead stops is fairly simple if you follow a few basic rules.

First, if a door closer is also being used, pay attention it's mounting. You don't want the arm of the closer to interfere with the arm of the overhead stop. This rarely is the case, but always be on the lookout for potential conflicts with hardware.

Secondly, overhead stops are sized. This means different models are used for different door widths. The ''size'' is added to the series number.

• 23-27'' - model 812
• 27-33'' - model 813
• 33-39'' - model 814
• 39-45'' - model 815
• 45-51'' - model 816

Since a standard commercial door is 36'' wide a Size 4 stop would be used

The next step is to decide if you need a stop only, or a stop + the hold open feature.  The designation for stop only is "S" and for hold open it is "H".  Below is a chart for both series showing size and feature designation.

Quick Tip

Both the door and the frame should be reinforced where the unit mounts. With metal doors and frames, a 1/4'' steel plate is welded to the backside. This area must be drilled and tapped for the mounting bolts. When possible, a more secure installation can be accomplished by using through bolts.

Compare all the Glynn Johnson overhead holders and stops by clicking here.