In this guide
Quick answer: for a high-traffic door, buy an ANSI/BHMA Grade 1 closer with backcheck and adjustable delay, and mount it with through-bolts. Then check its adjustment every few months.
Do the math on a busy door. At 300 uses a day, six days a week, that is over 90,000 cycles a year. Grade 2's 1 million test cycles equals around 11 years under lab conditions, and doors in the real world get far harsher treatment. On a really busy door, the Grade 1 minimum of 1.5 million cycles buys you years, and DRIWON's 2 million cycle testing goes further still.
What wears out first on busy doors
- Seals: when they fail, oil leaks and the door slams.
- Mounting screws: thousands of cycles loosen them, especially in soft material.
- Arm joints: they get worn and noisy.
- Hinges: a sagging door puts extra load on everything else.
Features that matter most
Grade 1 certification
This is the baseline. See Grade 1 vs Grade 2 if you need to justify the cost.
Backcheck
Backcheck stops people from throwing the door into the wall, and that is the abuse that destroys arms.
Delayed action
Useful for carts, deliveries and anyone who needs more time. It also reduces collisions with the door.
Durable finish
Busy doors get scuffed. Powder coating handles this better than paint.
Recommended settings for a busy door
- Set spring power to suit the door width and weight, using the size chart.
- Time the sweep so the door closes in at least 5 seconds. See the ADA guide for details.
- Set the latch so the door pulls in firmly without a bang.
- Turn backcheck up until the door resists being flung past about 75 degrees.
Simple maintenance plan
Every three months, tighten the mounting screws and arm bolts, check for oil and retest the closing time. It takes five minutes and catches most problems before they become a broken door. Want a heavier unit? Compare our heavy duty door closers.
See this high-traffic door closer on Amazon →
How to estimate your door's traffic
You do not need a door counter. Stand at the door for 15 minutes at a typical time and count each opening, then multiply by four for an hourly figure and by the hours you are open. Many doors see more use than owners expect. A small coffee shop can easily reach 500 uses on a good day, and a school entrance can do that within a single class change.
| Level | Uses per day | Examples |
|---|---|---|
| Low | Under 75 | Small office, storeroom |
| Medium | 75 to 300 | Corridor door, small shop |
| High | 300 to 1,000 | Retail entrance, restaurant, clinic |
| Very high | Over 1,000 | School, transit, big box entrance |
Choosing by building type
Schools
Doors get pushed, kicked and hung on. Use parallel arm mounting, so that the arm is out of reach, and take care with fasteners. A cast iron closer is well worth considering.
Restaurants
Back doors face grease, heat and arms full of supplies. A corrosion-resistant finish, backcheck and a firm latch keep air conditioning in and pests out.
Retail
A slow, gentle close protects customers with strollers and shopping bags. Delayed action can help here, as can ADA settings.
Clinics and offices
Quiet matters. Choose a smooth closer, set it to latch softly, and check opening force.
Why people complain about busy doors
Almost every complaint about a busy door falls into three groups: it is too heavy, it slams or it does not latch. All three are usually adjustment problems. Fix them promptly, because unhappy users end up forcing or propping doors, which does more harm than the traffic itself. If a closer cannot be set to fix a problem, then it may be the wrong size for the door.
Frequently asked questions
How long will a door closer last on a busy entrance?
What is the best closer for a restaurant door?
Should I use one closer per door on double doors?
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