Cal-Royal CSL03 Classroom Lock...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$118.72
$99.83
Cal-Royal Cal-Royal CSL03 Classroom Lock with Clutch Grade 2, Pioneer SL Series CSL03

Cal-Royal CSL03 Classroom Lock with Clutch, Pioneer SL Series Grade 2 Cylindrical Lever Lock

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Model: CSL03-26D
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$118.72
$99.83
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Cal-Royal CSL03 Classroom Lock with Clutch, Pioneer SL Series Grade 2 Cylindrical Lever Lock

The Cal-Royal CSL03 Classroom Lock is a Pioneer SL Series cylindrical lever lock built for offices, schools, hospitals, apartments, hotels/motels, and other public buildings. It features a dead locking latch bolt operated by lever from either side, except when the outside lever is locked from outside by key — in which case the latch bolt is operated by turning the inside lever (ANSI Function F109). Fitted for doors from 1-3/8" to 1-3/4" thickness with a 2-3/4" standard backset, this lockset conforms to ANSI/BHMA A156.2, Series 4000, Grade 2 requirements and exceeds 400,000 cycles for long-term reliability in high-traffic commercial environments.

Key Features

  • Door Range: Fits 1-3/8" to 1-3/4" thickness doors for broad application compatibility.
  • Backset: 2-3/4" standard backset with a 2-1/4" x 1-1/8" front, adjustable for flat or beveled doors 1/8" in 2".
  • Durability Rating: Conforms with ANSI/BHMA A156.2, Series 4000, Grade 2 requirements and exceeds 400,000 cycles for dependable long-term performance.
  • Clutch System: Featuring a free-turning handle CLUTCH System that deters breaking of the handle from forced attempts.
  • Latchbolt: 1/2" throw solid brass latchbolt, reversible for RH or LH applications.
  • Strike: ASA strike standard (1-1/4" x 4-7/8", 1-1/4" lip, square corner); "T" and full lip strike available on request.
  • Exposed Trim: Wrought brass, bronze, or stainless steel trim with zinc casting levers plated to match trim finish.
  • Keying: 6-pin "C" keyway cylinder with 2 keys per lock, keyed per individual job requirements.
  • Installation Flexibility: Optional thru-bolt installation with individual springs on each side to prevent lever sag and reduce maintenance.

Certifications & Compliance

  • ANSI/BHMA A156.2, Series 4000, Grade 2 Compliant
  • Exceeds 400,000 Test Cycles
  • Meets ADA Requirements, Specially Designed for Barrier-Free Application

Technical Specifications

  • Subcategory: Cylindrical Leversets
  • Product Group: Mechanical Locks
  • Keyed Function: Single Cylinder
  • Product Subgroup: Bored Locksets
  • Product Type: Leversets
  • Keyed: Yes
  • ANSI Function: F84
  • Product Attribute: Cylindrical Locks
  • Door Strike: ANSI, 1-1/4" x 4-7/8", 1-1/4" Lip, Square Corner
  • Product Category: Mechanical Locks
  • Department: Door Hardware

Typical Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Hotel and Motel Properties
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings
  • Public and Commercial Buildings

Why Cal-Royal Pioneer SL Series?

Cal-Royal Pioneer SL Series locksets deliver professional-grade reliability with solid brass latchbolt construction and Grade 2 performance exceeding 400,000 test cycles. The free-turning CLUTCH System handle design helps deter forced-entry damage, while individual lever springs maintain smooth operation and reduce maintenance over time. Engineered for demanding commercial and institutional applications where dependable daily performance is essential.

Product Specs

Subcategory:
Cylindrical Leversets
Product Group:
Mechanical Locks
Keyed Function:
Single Cylinder
Grade:
Grade 2
Product Subgroup:
Bored Locksets
Product Type:
Leversets
Keyed:
Yes
Commercial/Residential:
Commercial
Lock Function:
Classroom
ANSI Function:
F84
Product Attribute:
Cylindrical Locks
Product Model:
CSL03
Product Function:
Classroom
Door Thickness Range:
1-3/8" to 1-3/4"
Door Strike:
ANSI, 1-1/4" x 4-7/8", 1-1/4" Lip, Square Corner
Product Category:
Mechanical Locks
Backset (Distance):
2-3/4"
Department:
Door Hardware

Cal-Royal CSL03-26D – Frequently Asked Questions

1) Will the Cal-Royal CSL03 classroom lock fit a 1-3/8 inch door, or is it 1-3/4 only?
Both. The CSL03 is fitted for doors 1-3/8 inch through 1-3/4 inch thick, so it covers the standard 1-3/4 inch commercial door and the thinner 1-3/8 inch interior doors common in older schools and apartment buildings. Backset is 2-3/4 inches, the standard commercial backset, and the front is 2-1/4 x 1-1/8 inches, adjustable for flat or beveled doors 1/8 inch in 2 inches.
2) How does a classroom function lock actually work day to day for a teacher?
The lever works from both sides normally. A key from the outside locks the outside lever, and from that point anyone can still get out because the inside lever always retracts the dead locking latch bolt. The teacher does not need to be in the corridor to secure the room in the sense of a storeroom lock that is always locked; the CSL03 is either unlocked for class change or key-locked for the period. Cal-Royal states it as ANSI Function F109, and the catalog attribute records it as F84.
3) Will the Cal-Royal CSL03 latch into the strike prep I already have in a hollow metal frame?
It ships with the ASA strike, 1-1/4 by 4-7/8 inches with a 1-1/4 inch lip and square corners, which is the standard commercial frame prep, so it drops into a frame already cut for an ASA strike. The latchbolt is solid brass with a 1/2 inch throw. If your frame is cut for a T strike or a full lip, Cal-Royal offers both on request.
4) Is the Cal-Royal CSL03 rated for a school corridor, and what grade is it?
It conforms to ANSI/BHMA A156.2, Series 4000, Grade 2 and exceeds 400,000 test cycles. It also meets ADA requirements and is designed for barrier-free applications, which is what a lever gets you over a knob in a public building. Grade 2 is the medium duty commercial tier; for a heavy traffic main corridor or a high abuse opening, a Grade 1 classroom lock like the Dexter C1000 Series classroom lever is the step up.
5) What keyway does the Cal-Royal CSL03 come in and how many keys ship with it?
A 6-pin C keyway cylinder, single cylinder, with two keys per lock, and Cal-Royal keys them per individual job requirements. So if you are ordering for a facility you specify the keying scheme with the order rather than rekeying on site. Note it is a Cal-Royal C keyway cylinder, not a Schlage cylinder, so it is not a drop-in for a Schlage keyed system without addressing the cylinder.
6) I need a classroom door that can be locked from inside during a lockdown - is the CSL03 the right lock?
No. The CSL03 is classroom function (ANSI F84), where the outside lever is locked by key from the outside only. For lockdown from inside the room, use the Dexter C1000 Series classroom security lever lock (DEX-C1000-CSEC), a Grade 1 classroom security function clutching keyed lever for doors 1-3/8 inch to 1-3/4 inch. Classroom security uses a key cylinder on both sides so a teacher can secure the outside lever without stepping into the corridor.
7) What is the closest Grade 1 equivalent to the Cal-Royal CSL03 classroom lock?
The Dexter C1000 Series classroom cylindrical lever lock (DEX-C1000-CLRM) is the closest step up. It is a Grade 1 classroom function clutching keyed lever lock fitting doors 1-3/8 inch to 1-3/4 inch, the same door thickness range the CSL03 covers, and it shares the clutching lever behavior. The CSL03 is Grade 2 classroom function. If a spec sheet calls for ANSI/BHMA Grade 1 on a classroom door, the C1000 meets it on the same door prep range.
8) What should I use instead of the CSL03 on an office door where the occupant needs to lock and unlock the outside lever themselves?
Use an entry/office function rather than classroom. The Falcon B511CP6D is a Grade 2 medium duty cylindrical lever lock with entrance/office function, matching the CSL03 on Grade 2. The Dexter C1000 entry/office lever (DEX-C1000-ENTR) is the Grade 1 version, clutching and keyed, for doors 1-3/8 inch to 1-3/4 inch. Entry/office lets the occupant secure the outside lever from inside the room; the CSL03 at F84 is keyed from the outside only.
9) My door is 2 inches thick - which classroom-class lever fits when the CSL03 does not?
The CSL03 is fitted for doors 1-3/8 inch to 1-3/4 inch, so a 2 inch door is outside its range. The Corbin Russwin CL3110 vandal resistant cylindrical lever covers 1-3/4 inch to 2 inch and is Grade 1 with a fire rating, though it is passage/closet function. The Falcon K101 covers 1-3/8 inch to 2-1/4 inch, Grade 1 heavy duty and fire rated, also passage function. For a keyed opening on a 2 inch door, the Hager 2525 Grade 2 commercial entry lever covers 1-3/8 inch to 2 inch.
10) Do I have to specify handing when I order the Cal-Royal CSL03?
No. The latchbolt is reversible for right hand or left hand doors, so one part number covers either swing. That matters if you are ordering a batch for a building where the openings are mixed, since you are not sorting the shipment by hand.
11) What is the clutch on the Cal-Royal CSL03 for?
When the outside lever is locked, the clutch lets it spin free instead of taking the load. Someone hanging on the handle or wrenching it turns the lever rather than shearing the spindle, which is the usual way a lever lock fails in a school or a hotel corridor. It is a vandal deterrent, not a security rating.
12) Should I use a classroom lock or a storeroom lock on an office door?
Depends on whether you want the door to default open or default locked. The CSL03 classroom function lets you key the outside lever locked and leave it that way, or leave it unlocked for free passage, which suits a room that is open during the day and secured at the end of it. A storeroom function is always locked outside and needs a key every single time, which is what you want on a mechanical room or supply closet. The Hager 2580 with the Withnell lever is a Grade 2 storeroom option if that is the function you actually need.
13) I need matching passage and privacy levers for the rest of the building. What pairs with a Grade 2 commercial classroom lock?
Cal-Royal's Pioneer SL Series is where you look first if you want the exact same lever profile across the openings. For a mixed-brand spec at the same Grade 2 commercial tier, the Hager 2510 passage and Hager 2525 entry both cover 1-3/8 inch to 2 inch doors, and the Accentra 5301LN Augusta is a Grade 2 passage lever. Function follows the room: passage on corridors and closets, privacy on restrooms, classroom or entry where you need a key.
14) Can I use a Hager 2580 storeroom lock in place of a Cal-Royal CSL03?
They are different functions and behave differently at the door. The Hager 2580 with Withnell lever is a Grade 2 storeroom cylindrical lock for doors 1-3/8 inch to 2 inch: the outside lever stays locked at all times and a key retracts the latch. The CSL03 is Grade 2 classroom function, where the outside lever is normally free and is locked by key from the outside. Both are Grade 2 keyed cylindrical levers, so the substitution is only a fit if the opening is meant to be permanently secured rather than switched between locked and unlocked.
15) What is the non-keyed counterpart to the CSL03 for corridor and closet doors in the same building?
For openings that need no key, the Falcon B101 is a Grade 2 medium duty cylindrical passage lever lock with a non-handed design, and the Hager 2510 is a Grade 2 passage cylindrical lever with the Withnell design for doors 1-3/8 inch to 2 inch. Both are the same Grade 2 cylindrical lever class as the CSL03 but with no cylinder; the CSL03 carries a keyed single-cylinder classroom function. Specifying a passage lever on the closets and a CSL03 on the classroom doors keeps one lever style across the corridor.
16) Is a Kwikset 200BRNL Breton lever an acceptable substitute for a Cal-Royal CSL03 in a school corridor?
No. The Kwikset 200BRNL Breton is a Grade 3 passage lever set for doors 1-3/8 inch to 1-3/4 inch, with no cylinder. The CSL03 is a Grade 2 commercial classroom lock, keyed single cylinder, conforming to ANSI/BHMA A156.2 Series 4000 Grade 2 and exceeding 400,000 cycles. The door thickness range is the same, but a Grade 3 passage set will not hold a classroom function or a Grade 2 spec line.
17) For a psychiatric or detention room, is the CSL03 classroom lock the correct choice?
No. Those openings call for an asylum function, keyed on both sides with no free lever. The Dexter C1000 Series asylum lock (DEX-C1000-ASYL) is Grade 1 asylum function F87 for doors 1-3/8 inch to 2 inch, and the Arrow MK33-BD-CS is a Grade 2 asylum lock with a ball knob and a conventional cylinder in Schlage C keyway. The CSL03 is classroom function F84, which leaves the inside lever always free to operate the latch.
18) Which lock replaces a CSL03 when the room needs keyless code entry instead of a key?
For code entry on a lever, the Lockey 2835 mechanical pushbutton keyless lever lock fits doors 1-3/16 inch to 2 inch and is passage function with ADA compliance, and the Lockey 1150 heavy duty mechanical keypad lever set with double combination fits 1-1/8 inch to 2 inch with an adjustable backset. The Delaney LP250 is a Grade 2 electronic keypad leverlock. The CSL03 uses a 6-pin C keyway cylinder with 2 keys per lock and a 2-3/4 inch backset, so switching to a keypad replaces the key system entirely rather than rekeying into it.
19) Does the CSL03 work as a bathroom lock, or do I need something else?
A bathroom needs privacy function, which the CSL03 does not provide - it is classroom function, keyed single cylinder, with no inside thumbturn. For privacy openings use the Arrow MK02-TA, a privacy cylindrical lock with a Tudor knob, non-keyed, fire rated, for doors 1-3/4 inch to 2 inch, or the Kwikset 300BRNL Breton privacy lever set, Grade 3, for doors 1-3/8 inch to 1-3/4 inch.
20) What finishes does the Cal-Royal CSL03 classroom lever come in, and will the levers match the rose?
Three: US3 polished brass, US26D satin chrome, and US10B oil-rubbed bronze. Exposed trim is wrought brass, bronze, or stainless steel, and the levers themselves are zinc castings plated to match the trim finish, so the lever and rose read as one piece on the door.
21) What do I order for the inactive leaf or a pull-side-only door alongside CSL03 classroom locks?
A dummy trim matches the lever look without any latch. The BEST 7KC Series 1DT single dummy trim is a Grade 2 non-keyed medium duty cylindrical lever, the same Grade 2 class as the CSL03. The BEST 9K Series 1DT and the Accentra 455LN Augusta are Grade 1 heavy duty and Grade 1 dummy levers respectively. The CSL03 itself is a keyed classroom lock with a latchbolt, so it cannot serve a dummy opening.
22) Which levers pair with a CSL03 if I want lever hardware rather than knobs throughout a building?
The CSL03 is a cylindrical lever lock, so knob-trim products break the visual line. Among Grade 2 lever options, the Accentra 5301LN Augusta 5300 Series and Accentra 4601LN 4600 Series are Grade 2 passage cylindrical levers, the Design Hardware J75 J Series is a Grade 2 passage lever for 1-3/4 inch doors, and the Arrow GL01 Sierra lever is Grade 2 passage for 1-3/4 inch to 2 inch doors. The Arrow HK11-BB and MK02-TA use ball and Tudor knob trim instead.
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Can I return it if it doesn’t work for me?
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Does the Cal-Royal CSL03-26D come with a warranty?
Absolutely. The Cal-Royal CSL03-26D 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 CSL03-26D?
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