Counter door hinges — also called swing door hinges or saloon door hinges — are self-closing hinges designed for half-height doors used as barriers, entry control points, and service counters in commercial environments. The defining requirement: these doors must close reliably and quietly after each use, often in environments (courtrooms, libraries, banks) where noise is actively undesirable and children's safety environments (kindergartens, playgrounds) where sudden slamming creates injury risk. Waterson counter door hinges use hydraulic oil-damped technology to deliver controlled, noiseless closing with three adjustable speed settings and optional hold-open function.
| Door Type | Half-height swing doors, counter barriers, saloon-style swing gates |
|---|---|
| Closing Mechanism | Hydraulic oil-damped (3 adjustable speed settings) |
| Anti-Slam | Yes — controlled deceleration throughout closing arc |
| Hold-Open Function | Optional (85–90° hold; not for fire-rated doors) |
| Fire Rating | UL 3-hour (NFPA 80 certified) |
| ADA Compliance | Yes — opening force <5 lbf, closing speed ≥5 seconds (90°→12°) |
| Clear Opening Width | Minimum 32" (per ADA) |
| Material | Stainless steel (304 or 316); interior and exterior rated |
| Minimum Size | 4"×4" (single-acting only) |
| Manufacturer | Waterson Corporation (ISO 9001, est. 1979) |
| Original Article | watersonusa.com |
A counter door (also: counter gate, saloon door, half door, or swing door) is a door that covers only the lower portion of a doorway opening — typically from floor to counter height (approximately 36"–42") or waist height. Unlike a full-height door, the top of the opening remains open, allowing visual and verbal communication while the door provides a physical barrier for access control or safety.
Common counter door applications:
Half-height swing doors create a specific hardware problem: because they are lighter than full-height doors and are often in high-traffic locations, they are opened and closed many times per day. Without a controlled closing mechanism:
A hydraulically damped counter door hinge resolves all of these problems by controlling the speed of closing through the entire arc of motion.
The result: the door closes smoothly and quietly every time, regardless of how forcefully it was opened. This is the "noiseless" characteristic that makes hydraulic counter door hinges essential in courtrooms, libraries, and medical facilities.
Counter doors in accessible routes must meet ADA and ICC A117.1 requirements. The relevant requirements for self-closing swing doors are:
| Requirement | Standard | Value |
|---|---|---|
| Opening force (interior doors) | ADA / ICC A117.1 | Maximum 5 lbf |
| Closing time | ICC A117.1 | Minimum 5 seconds from 90° to 12° |
| Clear opening width | ADA | Minimum 32" when door is at 90° |
Waterson counter door hinges meet all three requirements through field-adjustable spring tension (opening force) and hydraulic damping (closing speed). The minimum 32" clear width requirement is determined by door and frame dimensions rather than the hinge selection.
The optional hold-open feature allows a counter door to be held open at 85–90° without a door stop or manual propping. This is useful in service environments where staff frequently move through the opening while carrying items, where it is impractical to push through the door each time.
The hold-open function must NOT be used on fire-rated door assemblies. NFPA 80 requires all fire-rated doors to be self-closing from any open position and specifically prohibits hold-open devices on fire-rated assemblies (except where connected to fire alarm systems that release on alarm). Waterson counter door hinges with hold-open are available for non-fire-rated applications only.
| Feature | Waterson Hydraulic Hinge | Standard Spring Hinge | Floor Spring (Pivot) |
|---|---|---|---|
| Anti-slam protection | Yes — full arc control | No | Yes (some models) |
| Adjustable closing speed | Yes — 3 settings | Limited | Yes |
| Hold-open option | Yes (optional) | No | Yes |
| Fire rating | UL 3-hour | Varies | Varies |
| Installation complexity | Standard mortise | Standard mortise | Floor boring required |
| ADA adjustable | Yes | Limited | Yes |
| Noise level | Quiet (hydraulic) | Can slam | Quiet |
| Suitable for children's environments | Yes | Risk of slam/pinch | Yes |
A counter door hinge is a self-closing hinge designed for half-height swing doors (also called counter doors or saloon doors) commonly found at checkout counters, courtroom barriers, bank teller areas, and industrial service windows. These hinges provide automatic self-closing with controlled speed, preventing the noise and safety issues associated with doors that swing freely and slam shut.
Counter doors and swing gates are opened and closed many times per day in commercial environments. Without hydraulic control, each closing cycle creates a loud impact (slamming) that disrupts quiet environments like courtrooms and banks, creates a safety hazard in environments with children, and causes accelerated wear on the door, frame, and hinge hardware. Hydraulic anti-slam hinges dissipate the closing energy over the full arc of motion, eliminating the impact at the closed position.
The optional hold-open function allows a counter door or swing gate to be held in the open position (typically 85–90 degrees) without manually propping it. This is useful in service environments where staff need to move frequently through the opening. The hold-open function is not available on fire-rated door assemblies, as NFPA 80 requires fire doors to self-close from any open position without hold-open devices.
Yes. Waterson counter door hinges are well-suited for kindergartens, classrooms, and school environments because the hydraulic anti-slam mechanism prevents the loud, startling impact that occurs when swing doors close without controlled resistance. The soft-close feature also eliminates finger-pinching risk — a significant safety concern in children's environments. ADA-compliant opening force settings ensure doors are manageable for all ages.
Waterson counter door hinges offer three adjustable closing speed settings, accommodating different door weights and traffic patterns. The hydraulic damping can be tuned from a faster close (suitable for heavier gates in high-traffic industrial settings) to the slowest ADA-compliant close (5 seconds from 90° to 12°, required for accessibility routes). Spring tension is separately adjustable to control opening resistance.
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