Quick Answer: How do you determine door closer size?

Do door closers come in different sizes?

Most closers are adjustable, but the most common are a size 4 for an external 36 inch wide commercial door, and a size 3 for an internal commercial or residential application. There are some applications that may require a special type of closer, such as a hold open feature, positive or spring stop.

What is the difference between grade 1 and grade 3 door closer?

Among other specifications for each grade, door closers are subjected to a “cycle count”: Grade 1 = 2,000,000 cycles with a minimum efficiency of 60 percent. Grade 2 = 1,000,000 cycles with a minimum efficiency of 60 percent. Grade 3 = 500,000 cycles with a minimum efficiency of 50 percent.

What are door closer grades?

A. Door Closers are rated by opening/closing force “Size”. The Size ratings are from #1 to #6, with Size #1 the weakest strength and Size #6 the strongest. Many of our most popular door closers have an adjustable Spring/Power setting.

What is the strongest door closer?

Resolution: The size 6 handed closers will have the most (strongest) closing force. The 4016 (pull side), the 4026 (top jamb push side) or the 4116 (push side parallel arm) have the highest closing force.

How do I choose a door closer?

How to Choose the Correct Door Closer

  1. Determine what size door closer you’ll need. …
  2. Decide whether you need a surface-mounted or concealed unit. …
  3. Review mounting requirements. …
  4. Select the right grade. …
  5. Look for fire rating. …
  6. Compare finish options. …
  7. Evaluate whether backcheck is needed.
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What is a 2 stage door closer?

The second stage is the backcheck when a special valve in most door closers controls the opening swing. The door then slows smoothly prior to the end of the swing.