Cal-Royal BA03 Classroom Cylin...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$67.92
$59.54
Cal-Royal Cal-Royal BA03 Classroom Cylindrical Lock, Barrington BA Series BA03

Cal-Royal BA03 Classroom Cylindrical Lock, Barrington BA Series with Grade 2 ANSI F84 Function

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Model: BA03-10B
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Cal-Royal BA03 Classroom Cylindrical Lock, Barrington BA Series with Grade 2 ANSI F84 Function

The Cal-Royal BA03 Classroom Cylindrical Lock from the Barrington BA Series delivers ANSI F84 classroom function with a deadlocking latch bolt operated by knob from either side, except when the outside knob is locked from the outside by key. Built for 1 3/8" to 1 3/4" thickness doors with a 2 3/4" standard backset, this lock meets or exceeds BHMA/ANSI A156.2 Series 4000 Grade 2 (FF-H-106C) requirements and carries a UL listed 3-hour rating, conforming to UL10C and UBC 7-2-1997 standards. Exposed trim is available in wrought brass, bronze, or stainless steel for durable, long-lasting performance in commercial settings.

Key Features

  • Door Range Compatibility: Designed for 1 3/8" to 1 3/4" thickness doors for standard commercial door applications.
  • Backset Options: 2 3/4" standard backset with 2 3/8", 3 3/4", and 5" extension options available for flexible installation.
  • Bore Diameter Specifications: 1" bore diameter for latch and 2 1/8" for lock housing to accommodate standard door preparation.
  • Latch Faceplate Sizing: 2 1/4" x 1 1/8" faceplate for 2 3/4" backset, or 2 1/4" x 1" faceplate for 2 3/8" backset configurations.
  • Strike Compatibility: ANSI standard strike measuring 4 7/8" x 1 1/4", with optional "T" and full lip strikes available on request.
  • Extensive Keyway Options: Standard 6 pin solid brass "C" keyway cylinder with 2 keys per lock, plus compatibility with Schlage E, Schlage C-K, Russwin D1-2-3-4, Corbin 59/60, Corbin-Russwin L4, Sargent LA-LB-LC, Falcon/Weiser E, Arrow A, Yale 8, Yale GA, Kwikset, and high security options including Medeco, Assa, Kaba, and Cal-Royal HSK cylinders.
  • Interchangeable Core Option: Accepts compatible 6 or 7 pin cores from BEST, FALCON, and ARROW with "IC" prefix part numbers, available combinated or uncombinated, with factory keying, control key, and masterkey options.
  • Heavy-Duty Construction: Concealed screw mounting and a long spindle hub eliminate hub wobble for reliable, tamper-resistant operation.

Certifications & Compliance

  • ANSI/BHMA A156.2 Series 4000, Grade 2 (FF-H-106C)
  • UL Listed 3-Hour Rating, Conforms to UL10C and UBC 7-2-1997
  • Meets the Buy American Act
  • Lifetime Warranty

Technical Specifications

  • Subcategory: Cylindrical Locksets
  • Product Group: Mechanical Locks
  • Latch Faceplate: 2-1/4" x 1-1/8" For 2-3/4" Backset, 2-1/4" x 1" for 2-3/8" backset
  • Keyed Function: Single Cylinder
  • Cross Bore: 2-1/8"
  • Edge Bore: 1"
  • Product Subgroup: Bored Locksets
  • Product Type: Knobs and Levers
  • Keyed: Yes
  • Lock Type: Cylindrical
  • Product Attribute: Cylindrical Locks
  • Door Thickness Range: 1-3/8" to 1-3/4"
  • Product Category: Mechanical Locks
  • Backset (Distance): 2-3/4"
  • Department: Door Hardware

Typical Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Retail Establishments
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings

Why Cal-Royal BA03?

Cal-Royal BA03 cylindrical locks deliver professional-grade reliability with solid brass cylinder construction and a UL listed 3-hour fire rating, meeting the demanding BHMA/ANSI A156.2 Grade 2 standard for commercial door hardware. The long spindle hub design eliminates hub wobble while concealed screw mounting resists tampering, making this lock a dependable choice for classrooms and other high-traffic commercial applications.

Product Specs

Subcategory:
Cylindrical Locksets
Product Group:
Mechanical Locks
Latch Faceplate:
2-1/4" x 1-1/8" For 2-3/4" Backset, 2-1/4" x 1" for 2-3/8" backset
Keyed Function:
Single Cylinder
Cross Bore:
2-1/8"
Edge Bore:
1"
Product Subgroup:
Bored Locksets
Product Type:
Knobs and Levers
Keyed:
Yes
Commercial/Residential:
Commercial
Lock Type:
Cylindrical
Lock Function:
Classroom
Product Attribute:
Cylindrical Locks
Product Model:
BA03
Product Function:
Classroom
Door Thickness Range:
1-3/8" to 1-3/4"
Door Strike:
ANSI Strike Standard, 4 7/8" x 1 1/4" . Optional "T" And Full Lip Strike Available On Request.
Product Category:
Mechanical Locks
Product Substrate:
Wrought Brass, Bronze or Stainless Steel
Backset (Distance):
2-3/4"
Department:
Door Hardware

Cal-Royal BA03-10B – Frequently Asked Questions

1) Will the Cal-Royal BA03 classroom lock fit a 1-3/8 inch door, or is it 1-3/4 only?
Both. The BA03 covers a door thickness range of 1-3/8 to 1-3/4 inches, so it works on the standard 1-3/4 inch commercial door and on older or lighter 1-3/8 inch openings without a filler kit. Standard prep is a 2-1/8 inch cross bore in the face and a 1 inch edge bore for the latch.
2) My existing doors are bored 2-3/8 backset. Can I still use the Cal-Royal BA03?
Yes, but you have to specify it. Backset is a required choice at order time: 2-3/4 inch standard or 2-3/8 inch. The faceplate changes with it, 2-1/4 x 1-1/8 inches on the 2-3/4 backset and 2-1/4 x 1 inch on the 2-3/8, so ordering the wrong backset means the latch face will not match your existing mortise in the door edge.
3) What does classroom function actually do on a Cal-Royal BA03 lock?
Classroom function, ANSI F84: the deadlocking latch bolt retracts by knob from either side at all times, and the outside knob is locked or unlocked only by key from the outside. There is no inside button or turn, so a teacher cannot lock the door from within the room and nobody gets locked in. If you want an occupant to be able to secure the door from inside, classroom function is the wrong choice.
4) Is the Cal-Royal BA03 fire rated for a labeled classroom or corridor door?
It carries a UL listed 3-hour rating and conforms to UL10C and UBC 7-2-1997. It is also certified to BHMA/ANSI A156.2 Series 4000 Grade 2 (FF-H-106C), and meets the Buy American Act, which matters on public school and municipal work.
5) Will the Cal-Royal BA03 latch into the strike already in my frame?
If the frame has a standard ANSI strike prep you are fine, the BA03 ships with the ANSI standard strike at 4-7/8 x 1-1/4 inches. For a wood frame or an older opening cut for a smaller strike, T strikes and full lip strikes are available on request, and a full lip is what you want where the jamb is wide and the latch needs support past the frame face.
6) Can the Cal-Royal BA03 be keyed into my existing master key system?
Very likely. It ships standard with a 6 pin solid brass C keyway cylinder and two keys, and it is available in Schlage E and C-K, Russwin D1-2-3-4, Corbin 59/60, Corbin-Russwin L4, Sargent LA-LB-LC, Falcon/Weiser E, Arrow A, Yale 8, Yale GA, and Kwikset keyways. High security options include Medeco, Assa, Kaba and Cal-Royal HSK cylinders. Specify the keyway that matches your existing system when you order, since the lock is single cylinder and keyed on the outside only.
7) What is a Grade 1 alternative to the Cal-Royal BA03 cylindrical lock for a heavier-traffic opening?
The Cal-Royal BA03 is a cylindrical lock built to ANSI/BHMA A156.2 Series 4000 Grade 2. Where a specification calls for Grade 1 cylindrical hardware, the Falcon K501 is a Grade 1 heavy duty cylindrical lock in the K Series, and TownSteel offers Grade 1 cylindrical locksets in the CDC, CE, and CEC series. Note the function differs: the BA03 is a classroom function lock, while the K501 is an entrance function with push-turnbutton and the TownSteel CDC-109, CE-109, and CEC-109 are entry/office function.
8) What cylindrical lock should be used instead of the Cal-Royal BA03 on a door thicker than 1 3/4 inches?
The Cal-Royal BA03 is designed for doors 1 3/8 inch to 1 3/4 inch thick. For a thicker door, the Falcon K501 covers a 1 3/8 inch to 2 1/4 inch door thickness range in a Grade 1 heavy duty cylindrical lock. The K501 is an entrance function with push-turnbutton rather than a classroom function, so confirm the opening's required function before substituting.
9) Is the TownSteel CDC-109 a direct replacement for a Cal-Royal BA03 classroom lock?
No. The Cal-Royal BA03 is a classroom function lock, meaning the outside knob is locked and unlocked by key from the outside and the latch is retracted by knob from either side. The TownSteel CDC-109 is an entry/office function Grade 1 clutched heavy duty cylindrical lockset. Both are cylindrical locksets, but an entry/office function allows the occupant to lock the outside trim from inside, which is a different security behavior than a classroom function. Match the function first.
10) Which lock looks like a Cal-Royal BA03 substitute but is not?
The TownSteel CRX-A-41 is a cylindrical lockset in the same family of hardware, but it is a single dummy trim with no latch and no keying, made in stainless steel with ligature resistant arch trim for a 1 3/4 inch door. The Cal-Royal BA03 is a keyed, single cylinder classroom lock with a deadlocking latch bolt. A dummy set is pull trim only and will not secure or latch an opening. The BEST 9KW is also cylindrical but is an electromechanical lock with remote control operation, which requires power and a control system the BA03 does not.
11) Does the Cal-Royal BA03 take an interchangeable core?
Yes, in the IC prefix versions, which accept compatible 6 or 7 pin cores from BEST, Falcon and Arrow. Order combinated or uncombinated, with factory keying, control key and masterkey options. That is the version to buy if your facility already rekeys itself with small format cores, because you swap the core instead of pulling the lock.
12) Should I use a Grade 2 classroom lock like the Cal-Royal BA03 or step up to Grade 1?
The BA03 is ANSI/BHMA A156.2 Grade 2, which is built for commercial use and is where most offices, multi-tenant residential and light-traffic school doors land. For a stairwell, main entry or a door taking constant abuse, a Grade 1 cylindrical is the heavier answer, and ZenSupply carries the Falcon K501 (Grade 1, heavy duty, entrance function, 1-3/8 to 2-1/4 inch doors) and the TownSteel CE/CEI-109 extra heavy duty Grade 1. Note those two are entrance/office function, not classroom, so they lock differently.
13) I need a classroom lock for a door thicker than 1-3/4 inches. What works?
The BA03 stops at 1-3/4 inches, so it is not the part for a thicker door. Of the cylindrical locks ZenSupply carries, the Falcon K501 covers 1-3/8 to 2-1/4 inches, though it is an entrance function with push-turnbutton rather than a key-only classroom function. If the door has to be classroom function, the door thickness is what rules the BA03 out, not the function.
14) What is the difference between the TownSteel CE-109 and CEC-109 when replacing a Cal-Royal BA03?
Both are Grade 1 entry/office function cylindrical locksets from TownSteel: the CE/CEI-109 is a non-clutched extra heavy duty lockset in the CE Series, and the CEC/CECI-109 is a clutched extra heavy duty lockset in the CEC Series. A clutched lever spins freely when locked, so force applied to the trim is not transmitted to the lock mechanism. The Cal-Royal BA03 differs from both in function, being a classroom lock built to Grade 2.
15) Does a fire rated opening rule out substituting the Cal-Royal BA03 with another cylindrical lock?
The Cal-Royal BA03 carries a UL listed 3-hour rating conforming to UL10C and UBC 7-2-1997. Among comparable cylindrical locks, the Falcon K501 is also fire rated, in a Grade 1 heavy duty entrance function. Confirm the replacement carries the rating the opening requires along with the correct function before ordering.
16) What replaces a Cal-Royal BA03 on an opening that needs access control rather than a key?
The Cal-Royal BA03 is a mechanical keyed single cylinder lock operated by a solid brass cylinder and key. Where the opening needs to be released electronically, the BEST 9KW Series is a heavy duty electromechanical cylindrical lock with remote control operation. That change brings power and control wiring into scope, which a mechanical classroom lock does not require.
17) What finishes does the Cal-Royal BA03 classroom lock come in, and will it match my other doors?
Four finishes: US3 polished brass, US10 satin bronze, US10B antique bronze oiled, and US32D satin stainless steel. Exposed trim is wrought brass, bronze or stainless steel depending on finish. US32D is the usual pick for matching existing commercial openings, US10B for the darker oil-rubbed look on residential-style multi-family corridors.
18) Why do knobs get loose on cheap cylindrical locks, and does the Cal-Royal BA03 do anything about it?
Hub wobble is the usual culprit, the knob rocks on a short spindle hub until the whole assembly loosens. The BA03 uses a long spindle hub to eliminate that, and mounting screws are concealed so they cannot be backed out from the outside of the door. On a high-cycle classroom or corridor opening those two details are what keep the trim tight over the year.
19) Is the Cal-Royal BA03 a knob or a lever, and does handing matter?
The BA03 is a bored cylindrical knob lock in the Barrington BA Series. Being cylindrical and non-handed in operation, it works either swing without specifying hand, which is one less thing to get wrong on a fleet order. What you do have to specify is backset and finish. If your facility needs lever trim for ADA-style operation, a knob is not the right part.
20) For standardizing a facility on one cylindrical lock line, how does the Cal-Royal Barrington BA series compare to the alternatives?
The Cal-Royal BA03 is part of the Barrington BA Series, a Grade 2 commercial cylindrical line with a 2 3/4 inch standard backset, 2 1/8 inch cross bore, 1 inch edge bore, and an ANSI standard 4 7/8 inch by 1 1/4 inch strike, in wrought brass, bronze, or stainless steel trim. If the standard is a Grade 1 line, TownSteel offers the CDC, CE, and CEC series and Falcon the K Series, all heavy duty cylindrical. The BA series covers classroom function; those series are catalogued at entrance and entry/office function, so a facility standard spanning multiple functions should be checked series by series.
How fast can I get the Cal-Royal BA03-10B delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
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 Cal-Royal BA03-10B come with a warranty?
Absolutely. The Cal-Royal BA03-10B 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 Cal-Royal BA03-10B?
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
Why buy the Cal-Royal BA03-10B from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
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