Falcon W581 Grade 2 Storeroom ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$94.00
$66.23
Falcon Falcon W581 - Storeroom Knob Lock - Grade 2 Cylindrical Lock FAL-W581-KNOB

Falcon W581 Grade 2 Storeroom Knob Lock with 2-3/4" Backset

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Model: W581PD ELI 626
$94.00
$66.23
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$94.00
$66.23
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Falcon W581 Grade 2 Storeroom Knob Lock with 2-3/4" Backset

Medium-Duty Commercial Cylindrical Lock Solution

The Falcon W581 Grade 2 Storeroom Knob Lock delivers reliable commercial-grade security for medium-duty applications. This cylindrical lock features a 2-3/4" backset with 1-1/8" x 2-1/4" latch face and accommodates door thickness from 1-3/8" to 1-3/4". UL listed for 3-hour fire door applications and certified to ANSI/BHMA A156.2 Series 4000 Grade 2 standards for proven durability in commercial environments.

Professional Features & Benefits

  • Door Compatibility: Accommodates door thickness from 1-3/8" to 1-3/4" with 2-3/4" backset for versatile installation options.
  • Grade 2 Construction: ANSI/BHMA A156.2 Series 4000 Grade 2 certified for reliable performance and durability in commercial applications.
  • Fire-Rated Performance: UL listed for 3-hour fire door assemblies with A label certification for code compliance.
  • Heavy-Duty Components: Features heavy-duty torsion springs to prevent knob sag and stainless steel latch bolt with 1/2" projection.
  • Non-Handed Design: Field-reversible operation eliminates the need for disassembly during installation, reducing labor time and complexity.
  • Interchangeable Core Ready: Compatible with SFIC cylinders and cores from other manufacturers for convenient re-keying and master key system integration.
  • Corrosion-Resistant Construction: Brass and cold-formed steel components with zinc plating and dichromate coating plus stainless steel springs for long-term reliability.
  • Manufacturer Warranty: 10-year limited warranty for added confidence and protection.

Technical Specifications

  • ANSI/BHMA: F86
  • Backset (Distance): 2-3/4"
  • Commercial/Residential: Commercial
  • Cylinder and Keyways: G Keyway
  • Department: Door Hardware
  • Door Hand Direction: Non-Handed
  • Duty Level: Medium Duty
  • Electronic: No
  • Fire Rating: Yes
  • Grade: Grade 2
  • Handle Type: Knob
  • Keyed: Yes
  • Keyed Function: Single Cylinder
  • Lock Function: Storeroom
  • Lock Type: Cylindrical
  • Product Attribute: Cylindrical Locks
  • Product Category: Mechanical Locks
  • Product Function: Storeroom
  • Product Group: Mechanical Locks
  • Product Model: W581
  • Product Subgroup: Bored Locksets
  • Product Type: Knobsets
  • Series: W Series
  • Standard Latch: 1/2" Throw
  • Standard Strike: ANSI 1-1/4" x 4-7/8" Curved Lip
  • Subcategory: Cylindrical Locks
  • UL Listing Type: UL Listed (3 Hour A Label)

Installation & Operation

  1. Review manufacturer specifications and verify door preparation requirements including door thickness from 1-3/8" to 1-3/4" and 2-3/4" backset compatibility.
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on door surfaces for proper alignment.
  3. Prepare door by drilling required holes for the cylindrical lock mechanism and latch assembly per manufacturer specifications.
  4. Install the lock chassis using the two through-bolted screws that secure the steel rose insert and outer rose-mounting assembly.
  5. Adjust the self-adjusting latch front to accommodate beveled or flat door edges and verify proper alignment with strike plate.
  6. Test lock operation to verify proper function of the storeroom mechanism and make final adjustments as needed. Refer to manufacturer documentation for complete installation details and troubleshooting.

Professional Applications

  • Commercial Office Buildings
  • Retail Establishments
  • Multi-Family Residential Properties
  • Educational Facilities
  • Government and Municipal Buildings
  • Industrial and Warehouse Facilities
  • Mixed-Use Development Projects

Why Choose Falcon Quality?

Falcon W581 cylindrical locks deliver professional-grade reliability with heavy-duty torsion springs and corrosion-resistant brass construction rated for Grade 2 commercial applications. The 10-year limited warranty and UL listing for 3-hour fire door assemblies provide added confidence for demanding commercial environments. Engineered for medium-duty applications where dependable storeroom function and value pricing are essential.

Product Specs

Series:
W Series
Grade:
Grade 2
Duty Level:
Medium Duty
Keyed Function:
Single Cylinder
Standard Latch:
1/2" Throw
Standard Strike:
ANSI 1-1/4" x 4-7/8" Curved Lip
ANSI/BHMA:
F86
Product Group:
Mechanical Locks
Product Subgroup:
Bored Locksets
Product Type:
Knobsets
Subcategory:
Cylindrical Locks
Keyed:
Yes
Electronic:
No
Commercial/Residential:
Commercial
Cylinder and Keyways:
G Keyway
Lock Type:
Cylindrical
Handle Type:
Knob
UL Listing Type:
UL Listed (3 Hour A Label)
Lock Function:
Storeroom
Product Attribute:
Cylindrical Locks
Product Model:
W581
Product Function:
Storeroom
Door Hand Direction:
Non-Handed
Fire Rating:
Yes
Product Category:
Mechanical Locks
Backset (Distance):
2-3/4"
Department:
Door Hardware

Falcon W581PD ELI 626 – Frequently Asked Questions

1) Will the Falcon W581 storeroom knob lock fit a 1-3/8 inch door, or does it need a 1-3/4 inch door?
Both. The W581 cylindrical knob lock covers a 1-3/8 inch to 1-3/4 inch door thickness range on a 2-3/4 inch backset, so it drops onto standard commercial doors and older 1-3/8 inch interior doors without a spacer kit. It's non-handed, so one part number works on a left or right hand opening with no disassembly to reverse it.
2) Can a Falcon W581 knob lock go on a fire rated door?
Yes. The W581 is UL Listed for 3 hour A label fire door assemblies, and the storeroom function is the one code officials expect on a rated opening: the outside knob is always locked and the inside knob always retracts the latch for free egress, so the door stays latched and self-locking without anyone having to remember to lock it.
3) What does storeroom function actually mean on a knob lock, and is it the right function for a mechanical room or supply closet?
Storeroom means the outside knob is permanently locked and only the key retracts the latch; the inside knob always turns for egress. There is no button, no way to leave it unlocked, and the door relocks every time it closes. That's exactly what you want on a mechanical room, electrical closet, telecom room or stockroom. If you want staff to be able to leave the door unlocked during the day, storeroom is the wrong pick, an entrance/office function is. The W581 is single cylinder and keyed.
4) Is a Grade 2 knob lock enough for a commercial building, or do I need Grade 1?
Grade 2 to ANSI/BHMA A156.2 Series 4000 is a medium duty rating, and the W581 is built for commercial use at that level: offices, retail back-of-house, multi-family common doors, school storage rooms. Where the door sees constant traffic, an entrance vestibule or a high-abuse corridor, step up to a Grade 1 heavy duty storeroom knob, the Sargent 8XG04 is the Grade 1 equivalent function on the same 2-3/4 inch backset. The Sargent 6G04 is another Grade 2 storeroom knob if you're cross-shopping within the same grade.
5) Can I get the Falcon W581 to work on my building's existing key system?
Yes, in a few ways. The W581 is offered in nine keyway choices, C Schlage, G, E, H, K, L, N, P, or no cylinder at all, so if your building is already keyed to a Schlage C keyway you can order it that way and it goes straight onto the existing system. Keying is specified at order time as keyed different or keyed alike, and there's a key code field if your system uses one. For a facility that keys its own hardware, order it less 6 pin cylinder or less small format interchangeable core and install your own SFIC.
6) My door is 2 inches thick. Will the Falcon W581 work?
No. The W581 tops out at 1-3/4 inch door thickness. For a 2 inch door, the Corbin Russwin CK4851 entrance/office knob and the CK4310 passage knob both cover 1-3/8 to 2 inches, and the Deltana 3381, 6171 and 6112 knobs are rated to 2 inches as well. If the door has to be a keyed storeroom on a 2 inch leaf, the W581 isn't the part.
7) What is the closest Grade 2 storeroom knob lock to the Falcon W581 from another manufacturer?
The Sargent 6G04 is the nearest match. It is a Grade 2 storeroom/closet knob lock with a single cylinder, listed as standard duty in the 6 Line Series. The Falcon W581 is also a Grade 2 storeroom knob lock with single cylinder keyed function, rated medium duty, with a 2-3/4 inch backset. Both give the same operating behavior for a storeroom opening: keyed outside, always-locked outside knob, free egress from inside.
8) Is a keyed entry knob the same thing as a storeroom knob lock?
No. An entrance/office lock such as the Corbin Russwin CK4851 or the Dexter C2000 entry/office ball knob has an inside button that lets the outside knob be left unlocked, so staff can turn the opening into a free-passage door. A storeroom lock such as the Falcon W581 keeps the outside knob locked at all times and requires the key on every entry. Both are keyed, but on a stockroom, electrical closet, or mechanical room the entrance function will not hold the door secure.
9) What do I use on a thicker door than a Falcon W581 covers?
For doors up to 2 inches thick, the Corbin Russwin CK4851 Grade 2 entrance/office knob with conventional cylinder covers 1-3/8 to 2 inch, as does the CK4310 Grade 1 passage/closet knob. The Falcon W581 is built for 1-3/8 to 1-3/4 inch doors. Note the function change: the CK4851 is entrance/office and the CK4310 is non-keyed passage, so neither holds the outside knob permanently locked the way a storeroom lock does.
10) Does the Falcon W581 take a small format interchangeable core so my locksmith can rekey it in place?
It can. Order the less small format interchangeable core version and drop in your own SFIC, which is how most facilities running a master key system handle rekeying without pulling the lock off the door. A 6 pin conventional cylinder version is available if you're not on an IC system, and a less 6 pin option if you're supplying your own conventional cylinder.
11) Is a knob lock still allowed on my door, or do I need a lever for ADA?
A knob requires tight grasping and twisting, which is why lever handles are the norm on doors in the accessible path of travel. The W581 knob is suited to doors outside that requirement, mechanical and electrical rooms, storage and stockrooms, spaces not required to be accessible. If the opening is on an accessible route, specify a lever trim instead of the knob.
12) I need a keyed knob lock but not storeroom function. What else is there?
Depends on how the door has to behave. For a door staff need to leave unlocked during the day, the Dexter C2000 entry/office knob is a Grade 2 keyed option for 1-3/8 to 1-3/4 inch doors, as is the Corbin Russwin CK4851 entrance/office knob. For a classroom, where the outside knob is locked and unlocked by key but the inside always turns, the Dexter C2000 classroom knob is the Grade 2 pick. Privacy and passage doors don't take a cylinder at all, the Dexter C2000 privacy and passage knobs cover those.
13) I'm doing a whole floor of doors and only some need to lock. Can I match the W581 with passage and dummy hardware?
Not within the same Falcon series here, but you can hold a consistent grade across the floor. The W581 covers the keyed storeroom doors. For the doors that just need to latch, the Corbin Russwin CK4410 passage knob is Grade 2 on the same 1-3/8 to 1-3/4 inch thickness range, and the Arrow MK01 and RK01 are Grade 2 passage knobs on that range too. For a door that only needs trim and no latch, the BEST 6K single dummy is a Grade 2 medium duty match, as is the Schlage A170 single dummy.
14) The door does not need to be locked, just latched - what knob lock replaces a storeroom W581?
For an opening that only needs a latch and no key, the Corbin Russwin CK4410 is a Grade 2 passage/closet cylindrical lock with a Global knob for doors 1-3/8 to 1-3/4 inch, and the Dexter C2000 passage ball knob is a Grade 2 non-keyed passage lock for the same 1-3/8 to 1-3/4 inch door range. Both are non-keyed, so neither accepts the cylinder and keying that a keyed storeroom lock like the Falcon W581 uses.
15) Can I use a Grade 3 keyed knob instead of the Falcon W581 on a commercial door?
The Grade 3 keyed knobs in the set are lighter-rated products: the Cal-Royal BER00 is a Grade 3 entrance/office knob lock with a Kwikset keyway for 1-3/8 to 1-3/4 inch doors, the Pamex FTF Baron is a Grade 3 entrance/office knob lockset for the same door range, and the Master Lock BC Series biscuit knob is a Grade 3 keyed entry lock. All three are entrance function rather than storeroom, and none carries the Grade 2 rating or the UL 3-hour A label fire listing that the Falcon W581 does, so on a rated commercial opening they are not a like-for-like exchange.
16) What is the difference between the Falcon W581 and a BEST 8K entrance knob lock?
The BEST 8K Series entrance function knob is a Grade 1 heavy duty single cylinder lock, so it is rated a grade above the Grade 2 medium duty Falcon W581 and it operates as entrance rather than storeroom - the outside knob can be left unlocked from inside. The W581 is a fixed-locked storeroom knob. Match the function to the room first, then the grade to the traffic.
17) I need matching knobs on a closet door that does not latch - what pairs with a Falcon W581?
For a non-latching closet or inactive leaf, use a dummy trim rather than a lock: the Schlage A170 is a Grade 2 single dummy knob trim for 1-3/8 to 1-7/8 inch doors, and the BEST 6K Series single dummy trim is a Grade 2 medium duty non-keyed knob. Dummy trim is surface-applied with no latch or cylinder, so it does not replace the keyed, latching Falcon W581 on an opening that must secure.
18) Is the Sargent 28C knob trim an alternative to a Falcon W581 storeroom knob?
No. The Sargent 28C-KNOB is exit device trim - a knob and rose in the 28 Series that mounts to an exit device on the outside of the door. The Falcon W581 is a cylindrical bored lockset with its own chassis and latch that installs into a standard bored door prep. Trim for an exit device has no latch of its own and will not work on a door prepped for a cylindrical lock.
19) Can I use a residential knob set on a rental unit instead of a Falcon W581?
Residential knobs cover different needs. The Kwikset 400P-CP Polo keyed entry knob is Grade 3 for 1-3/8 to 1-3/4 inch doors and ships with a round corner adjustable latch and round corner strike, and the Schlage Residential F500 Plymouth with Georgian knob is a combo pack with adjustable backsets and dual strikes for 1-3/8 to 1-3/4 inch doors. Both are entry function for dwelling doors. For a commercial storeroom, mechanical room, or a fire-rated opening, the Falcon W581 is the commercial-rated Grade 2 storeroom lock with a UL 3-hour A label listing.
20) What knob lock goes on a restroom or bedroom door if the storeroom function is wrong?
Privacy function is the one to order. The Dexter C2000 privacy ball knob is a Grade 2 non-keyed privacy lock for 1-3/8 to 1-3/4 inch doors, the Pamex FTF Baron privacy knob is Grade 3 for the same door range, and the Cal-Royal BER20 is a Grade 3 privacy knob with brass trim. Privacy locks push-button from inside with an emergency release outside; the keyed storeroom function of the Falcon W581 is the opposite arrangement and is not used on bed and bath doors.
21) What finishes does the Falcon W581 knob lock come in for matching the rest of my doors?
Eight BHMA finishes: 605 bright brass, 606 satin brass, 613 satin bronze oil-rubbed, 619 satin nickel, 622 matte black, 625 bright chrome, 626 satin chrome and 643E aged bronze. 626 satin chrome is the usual commercial standard, so if you're matching existing back-of-house hardware in a building that's what's most likely already up. Two knob designs, Elite and Hana, cover the look.
22) Do the knobs on the Falcon W581 sag over time like cheap knob locks do?
The W581 uses heavy duty torsion springs specifically to keep the knob from sagging, and the chassis is brass and cold-formed steel with zinc plating and dichromate coating, with stainless steel springs. That matters on a storeroom door in a warehouse or a back corridor where people hang on the knob. The latchbolt is stainless as well.
23) Is the Falcon W581 an electronic or access control lock?
No, it's fully mechanical, key operated only. There's no reader, no wiring and no power required, so nothing changes when the building loses power, the outside knob stays locked and the inside knob still lets people out. If you need credential access on that opening you're looking at a different category of lock entirely.
24) Is there a keyless option instead of a keyed storeroom knob lock?
The Lockey 3830 is a mechanical keyless combination knob lock with auto-locking passage function for doors 1 3/16 to 2 inch. It opens on a code rather than a key, which suits an opening where you do not want to issue keys. It is not a key-in-knob storeroom lock, so it will not join the keyway and keying system that a cylinder lock like the Falcon W581 is ordered into.
25) What is the difference between a Falcon W581 and a decorative brass knob set like Emtek or Baldwin?
Decorative sets serve interior openings and finish-driven specifications. The Emtek Classic Brass Crystal Georgetown and Providence knobs and the Emtek Arts and Crafts Hammered Egg knob are dummy pairs with no latch, and the Baldwin Estate 5000 Baltimore knob comes in passage and privacy versions with a 2-3/8 inch backset and full lip strike. The Falcon W581 is a keyed commercial storeroom lock on a 2-3/4 inch backset with an ANSI 1-1/4 inch by 4-7/8 inch curved lip strike, so it addresses secured openings rather than interior trim.
How fast can I get the Falcon W581PD ELI 626 delivered?
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Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Falcon W581PD ELI 626 come with a warranty?
Absolutely. The Falcon W581PD ELI 626 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Falcon W581PD ELI 626?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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