♿ DRIWON DN-9500 — ADA-Adjustable Grade 1 Closer
Fine-tune sweep speed, latch speed, and delayed action to meet ADA Section 404 requirements precisely.
The ADA Requirements in Plain Language
ADA Section 404.2 applies to any door on an accessible route — which in a commercial building means essentially every door accessible to the public. When a door closer is present, three specific requirements apply:
Why Interior Fire Doors Create a Dilemma
Here is the practical challenge: a fire door must close and latch reliably every cycle. For a heavy 44-inch door, this often requires a spring setting that creates more than 5 lbs of opening force — putting ADA compliance and fire code compliance in direct conflict. This tension is real and occurs frequently in hospitals, schools, and any building with heavy fire-rated corridor doors.
The resolution comes from ADA's explicit exemption: fire doors are exempt from the 5 lbs opening force requirement when the Authority Having Jurisdiction requires a higher force for proper operation. However, the closing speed requirement — 5 seconds from 90° to 12° — still applies even on fire-rated doors, and must be met through valve adjustment.
📌 Key distinction: The 5 lbs force limit does NOT apply to fire-rated doors (ADA exempts them). The 5-second closing time DOES apply to all doors with closers on accessible routes, including fire-rated doors. Both requirements apply simultaneously to non-fire-rated interior doors on accessible routes.
How Delayed Action Aids ADA Compliance
Delayed action is a valve adjustment that holds the door in the open position for a set period before the sweep begins. It does not change the closing speed — it changes when closing starts. Under ADA, the 5-second timing is measured from when the door starts moving (from the 90° position), not from when the door was fully opened. This means delayed action adds passage time without affecting the technical closing-speed measurement.
In practice, delayed action set to 5–10 seconds on a corridor door gives users extra time to clear the doorway — particularly helpful for wheelchair users, patients with mobility aids, and elderly individuals — without technically extending the ADA closing speed beyond what the code measures.
ADA Compliance by Door Type
| Door Type | Force Limit | Closing Speed | Delayed Action? |
|---|---|---|---|
| Interior non-fire door | ≤ 5 lbs | ≥ 5 sec (90° to 12°) | Recommended |
| Interior fire-rated door | ADA exempt (fire code governs) | ≥ 5 sec (90° to 12°) | Must be UL-listed for rated assembly |
| Exterior door | ADA exempt (wind load) | ≥ 5 sec (90° to 12°) | Helpful for accessibility |
| Heavy hospital corridor | ADA exempt if fire-rated | ≥ 5 sec (90° to 12°) | Recommended; UL-listed required |
When to Use a Low-Energy Automatic Operator Instead
Where reliable ADA compliance cannot be achieved with a standard closer — typically on very heavy exterior doors at hospital or school entrances — a low-energy automatic door operator is the code-recognized solution. The operator provides power-assisted opening (eliminating the force issue) while a standard closer handles the self-closing function for fire code purposes. This combination is common at hospital main entrances and university building entries where the door weight and traffic volume make manual ADA compliance impractical.
📦 ADA-Ready Out of the Box
DRIWON DN-9500's adjustable valve range covers ADA sweep and latch speed requirements across all door sizes. Order on Amazon.
ADA-Adjustable Door Closer Solutions
ADA Door Closer Requirements FAQ
What are the ADA door closer requirements?
Under the 2010 ADA Standards (404.2.8.1), a door closer must be adjusted so the door takes at least 5 seconds to move from 90° to 12° from the latch. Interior hinged doors must open with no more than 5 lbf (404.2.9); fire doors follow the minimum set by the AHJ.
Does the 5 lbf opening force apply to exterior doors?
The 2010 ADA Standards set the 5 lbf limit for interior hinged doors. Exterior door force is not specified federally, but some state and local codes set limits, so check your jurisdiction.
Does delayed action count toward the 5-second closing time?
No. Delayed action adds time before the closing sweep starts. The closing speed must still meet the 5-second minimum from 90° to 12°.
Are DRIWON door closers ADA compliant?
The DN-9500 and DN-8220 are adjustable so closing speed and opening force can be set within ADA limits. Final compliance depends on the door and the installation.
Which buildings are most scrutinized for ADA door compliance?
Public buildings, healthcare and senior living facilities. See public building and senior living door closers.