S.Parker Door Closers

S.Parker door closers are commercial-grade hydraulic surface-mount closers manufactured by S. Parker Hardware, a brand with over 100 years in the door hardware business. The S.Parker line spans medium-duty, heavy-duty, barrier free, and delayed action configurations, all built on the same rack and pinion drive platform with all-temperature hydraulic fluid in an aluminum housing. The full product line is stocked at American Locksets and ships same day.

If you've been searching for "parker door closer," "parker door closers," "s parker," "s.parker," "parker door closer model 500," or "parker model 500 door closer," this is the correct category. Every S.Parker closer is available here with same-day shipping and free delivery on orders over $300.

The Parker Door Closer Model 500: The Original Specification

The S.Parker 500 Series is the door closer that built the brand's commercial reputation. It's a surface-mounted, non-handed rack and pinion closer designed specifically for trimline aluminum and narrow stile hollow metal doors, two of the most common door types in commercial construction. The 500 uses the same universal mounting template as the Parker 950, the Yale 50, and the Norton 1600, which makes it a direct retrofit option for any of those units without new hole drilling.

The Parker 500 installs in any position: standard regular arm, top jamb, corner bracket, and parallel arm. Two independent speed control valves adjust closing speed and latching speed separately, which is a distinguishing feature at the 500's price point. A back check variant is available, and hold-open arm configurations are offered for doors that need to stay in the open position. The 500 body is non-corroding aluminum, available in aluminum and duranodic finishes, and the closer is UL listed for use on hollow metal fire rated doors.

S.Parker 950 Series Parker Door Closers

The S.Parker 950 Series is the heavy-duty upgrade from the 500 platform, using the same mounting template but built for larger, heavier doors. The 950 is available in size variants by door width:

The 952 is the medium-duty model. The 953 is medium/heavy duty, specified for 36-inch interior doors or 30-inch exterior doors. The 954 is the heavy-duty model for 48-inch interior or 36-inch exterior doors. The 955BC is the extra heavy-duty model with back check standard.

Back check (BC) suffix variants include an adjustable valve that cushions the door against hard opening and prevents damage to the door, frame, and wall. Back check is required on exterior doors and on any opening where wind load or user force could slam the door open. The 953BC and 954BC are the most commonly specified models in this range for commercial interior and exterior door schedules respectively.

All 950 Series closers use rack and pinion operation in a high tensile strength aluminum housing with all-temperature hydraulic fluid. Two separate speed control valves adjust closing and latching speeds independently at any time. The 950 is UL listed for hollow metal fire-rated doors and carries a 10-year manufacturer warranty. Finishes available are aluminum and duranodic.

Tri Pack PA Series: Parallel Arm Bundles

The PA953 and PA955BC are the Tri Pack parallel arm bundles, shipping the closer body with parallel arm bracket already included. Parallel arm mounting is used when the closer needs to mount on the push side of the door with the arm running parallel to the door face. This is the correct mounting configuration for doors that swing out toward a corridor where a standard arm configuration would project into the traffic path.

S.Parker 900 Series: Architectural and Barrier Free Closers

900BC Adjustable Door Closer

The S.Parker 900BC is the architectural-grade closer with spring power adjustable from 1 to 6, covering the widest range of door sizes in the 900 family. The 900 is UL listed, complies with ANSI A156.4, and is available with hold-open arm configuration.

S.Parker BF900 Barrier Free Door Closer

The BF900 is S.Parker's ADA-compliant barrier free closer. Barrier free closers reduce the force required to open the door, which is a building code requirement under ADA and ANSI A117.1 for accessible doorways. The BF900 meets ADA opening force requirements at its lower spring power setting while still closing the door fully and latching reliably.

S.Parker CB900 Barrier Free and Delayed Action

The CB900 combines barrier free opening force with delayed action closing, meaning the door takes a minimum of 20 seconds to close after reaching the open position. Delayed action closers are specified on doors used by people with mobility limitations, in healthcare facilities where doors need to remain open during equipment transfer, and in any application where hands-free passage must be accommodated.

S.Parker 441BC Heavy Duty Cast Iron Door Closer

The 441BC is S.Parker's premium cast iron body closer, meeting ANSI A156.4 Grade 1 and ADA compliance standards. Available with heavy duty stop arm, hold-open arm, or standard arm configurations. Tri-style installation covers regular, parallel arm, and top jamb mounting. Adjustable backcheck is standard. Accessories including the HDARM-441, HOARM-441, and STOPARM-441 are sold separately and allow arm configuration changes after installation.

Browse the complete S.Parker door closers catalog at American Locksets. For door closers from other commercial brands, see the full door closers section. For S.Parker lever locks and exit hardware, see S.Parker lever locks and the broader commercial locks catalog.

Why American Locksets for Parker Door Closers

S.Parker door closers have been a commercial hardware staple for over 100 years because the 500 and 950 Series share template compatibility with Yale 50 and Norton 1600 closers, making retrofits faster and cheaper than ordering a brand-new template hole pattern. At American Locksets, we've stocked the full S.Parker line since 2001 and know which model maps to which door weight and width. 

Frequently Asked Questions About S.Parker Door Closers

Q: What is the Parker door closer to the Model 500?

A surface-mounted, non-handed rack and pinion closer for aluminum and hollow metal doors. Same mounting template as the Parker 950, Yale 50, and Norton 1600. Available in standard, top jamb, and parallel arm mounting.

Q: What is the difference between the 952, 953, 954, and 955BC?

Size determines door width capacity:

• 952: Medium duty

• 953: Medium/heavy duty, up to 36" interior or 30" exterior

• 954: Heavy duty, up to 48" interior or 36" exterior

• 955BC: Extra heavy duty with back check standard

Q: What does BC mean on an S.Parker door closer?

BC = Back Check. An adjustable hydraulic valve cushions the door against hard opening forces, preventing wall and frame damage. Required on most exterior doors.

Q: Are S.Parker closers ADA compliant?

The BF900 and CB900 models are barrier free ADA compliant. The 441BC can also be adjusted to ADA-compliant opening force levels. Confirm ADA compliance at the specified power setting before installing.

Q: What is a delayed action door closer?

A closer that holds the door open for at least 20 seconds before starting the closing cycle. The S.Parker CB900 is the delayed action model in this catalog, specified for healthcare, ADA applications, and hands-free passage.

Q: Do S.Parker 950 Series closers include a parallel arm bracket?

Standard 950 Series closers (952, 953, 954, 955BC) do not include the parallel arm bracket. The PA953 and PA955BC Tri Pack bundles include the parallel arm bracket. The PA815BC includes the parallel arm bracket with back check for 815 Series applications.