Marks USA MAR295RDB 295RDB Cla...
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$422.21
$212.43
Marks USA 295RDB Classroom Intruder Lever Lockset, Curved Lever, Yale Large Format IC, Less Core, 2-3/4in Backset, ANSI Strike, Grade 1

Marks USA MAR295RDB 295RDB Classroom Intruder Lever Lockset — Curved Lever, Yale Large Format IC, Less Core, 2-3/4" Backset, Grade 1

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Model: 295RDB/26D-F14
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Marks USA 295RDB Classroom Intruder Lever Lockset — Curved Lever, Yale Large Format IC, Less Core, 2-3/4" Backset, ANSI/BHMA Grade 1

The Marks USA 295RDB is a heavy-duty cylindrical classroom intruder lever lockset from the 295 Series, engineered for demanding commercial environments where security and longevity are paramount. Featuring a curved lever design with Yale Large Format Interchangeable Core (IC) compatibility (less core), this lockset ships with a 2-3/4" backset and an ANSI curved lip strike, and is rated for door thicknesses of 1-5/8" to 1-7/8" (a K1904 spacer is required for 1-3/8" doors). The chassis is constructed with cast retractors on bronze roller bearings and incorporates a unique stainless steel clutch mechanism that exceeds BHMA Grade 1 specifications by 300%, delivering over 3.6 million cycles of reliable operation.

Key Features

  • Exceptional Cycle Durability: Exceeds BHMA Grade 1 specifications by 300% with over 3.6 million cycles tested, ensuring long-term reliability in high-traffic commercial applications.
  • Unique Stainless Steel Clutch Mechanism: When locked, levers disengage from the retractor and interior mechanisms, swinging freely without resistance — dramatically reducing wear, eliminating lever droop, and lowering maintenance requirements.
  • Cast Retractors on Bronze Roller Bearings: Heavy-duty chassis construction with solid cast zamac levers and bronze bearings provides exceptional durability and smooth operation over millions of cycles.
  • Door Thickness Compatibility: Designed for doors 1-5/8" to 1-7/8" thick; compatible with 1-3/8" doors using the K1904 spacer accessory.
  • Dual Backset Compatibility: Supports both 2-3/8" and 2-3/4" backsets for flexible installation across a variety of door preparations.
  • Latch Specifications: Latch #1834 with a 1-1/8" x 2-1/4" front, 9/16" throw, and stainless steel nose for secure, reliable latching performance.
  • Thru-Bolted Rose Assembly: 3-7/16" diameter roses are spring-loaded and secured with two #10 thru-bolts for a solid, tamper-resistant installation.
  • 3-Hour Fire Rated: Meets 3-hour fire rating requirements for use in fire-rated door assemblies in commercial and institutional settings.
  • Marks Lifetime Mechanical Warranty: Backed by Marks USA's Lifetime Mechanical Warranty for long-term confidence and protection.

Certifications & Compliance

  • ANSI/BHMA Grade 1 — Exceeds specification by 300% (over 3.6 million cycles)
  • UL Listed
  • 3-Hour Fire Rated
  • ADA Compliant
  • Marks Lifetime Mechanical Warranty

Technical Specifications

  • Series: 295 Series
  • Product Group: Mechanical Locks
  • Product Subgroup: Bored Locksets
  • ANSI/BHMA: ANSI/BHMA, UL Listed
  • Commercial/Residential: Commercial
  • Function Description: Latch retracted by knobs/levers at all times
  • ADA Compliant: Yes
  • Keyed: No
  • ANSI Function: F75
  • Product Function: Passage/Hall/Closet
  • Latch Type Specification: Deadlocking
  • Product Category: Mechanical Locks
  • Department: Door Hardware

Typical Applications

  • K–12 Educational Facilities and Classrooms (Classroom Intruder Lockdown)
  • Higher Education Campus Buildings
  • Healthcare Institutions and Medical Offices
  • Commercial Office Buildings
  • Government and Municipal Buildings
  • Multi-Tenant Residential and Mixed-Use Properties
  • Industrial and Institutional Facilities

Why Marks USA 295RDB?

Marks USA 295 Series cylindrical locksets are built to outlast the competition, with a proprietary stainless steel clutch and bronze roller bearing chassis that exceeds BHMA Grade 1 durability standards by 300% — surpassing 3.6 million cycles. The solid cast zamac levers, thru-bolted rose assembly, and 3-hour fire rating make the 295RDB an engineered solution for the most demanding commercial and institutional door security applications.

Manufacturer Resources

Marks USA Product Catalog

Product Specs

Series:
295 Series
Latch Throw:
9/16"
Grade:
Grade 1
Product Group:
Mechanical Locks
Product Subgroup:
Bored Locksets
Product Type:
Cylindrical Locks
Subcategory:
Cylindrical Locks
ANSI/BHMA:
ANSI/BHMA, UL Listed
Commercial/Residential:
Commercial
Lock Type:
Cylindrical
Function Description:
Latch retracted by knobs/levers at all times
Front Size:
1-1/8” x 2-1/4”
ADA Compliant:
Yes
Keyed:
No
ANSI Function:
F75
Product Attribute:
Cylindrical Locks
Product Function:
Passage/Hall/Closet
Latch Type Specification:
Deadlocking
Product Category:
Mechanical Locks
Backset (Distance):
2-3/4"
Department:
Door Hardware

Marks USA 295RDB/26D-F14 – Frequently Asked Questions

1) Will the Marks USA 295RDB lever lockset fit a 1-3/4 inch commercial door?
Yes. The 295RDB covers door thicknesses of 1-5/8 inch to 1-7/8 inch, so a standard 1-3/4 inch commercial door sits in the middle of the range with no extra parts. Going thinner than that takes hardware: a 1-3/8 inch door needs the K1904 spacer. Anything above 1-7/8 inch is outside what this chassis handles.
2) My doors are bored for a 2-3/8 inch backset, not 2-3/4 - can I still use the Marks 295 lever lock?
The 295RDB ships with the 2-3/4 inch backset latch, but the 295 Series chassis supports both 2-3/8 inch and 2-3/4 inch backsets, so an existing 2-3/8 inch prep is workable with the correct latch. Measure from the door edge to the center of the bore before ordering; the two backsets are the only ones in play on a cylindrical prep.
3) Will the Marks 295RDB latch into the strike already in my frame?
Depends on what is in the frame now. The 295RDB uses a #1834 deadlocking latch with a 1-1/8 x 2-1/4 inch front and a 9/16 inch throw, and it comes with an ANSI curved lip strike. If your frame has a T-strike or a shallow lip, the 9/16 inch throw will not reach a deep-set commercial strike pocket without the supplied strike being swapped in. Matching the 1-1/8 x 2-1/4 inch latch front to your existing mortise in the door edge is the other thing to check.
4) Does the Marks USA 295RDB come with a cylinder core, or do I have to supply one?
Less core. The 295RDB is built for a Yale Large Format Interchangeable Core and ships without the core, so a locksmith or facility keyer supplies an LFIC that matches the building's keying system. That is the usual arrangement for a school or campus running its own core program, and it is also the thing people forget to add to the order.
5) Is the Marks 295 lever lock approved for a 3-hour fire rated door opening?
Yes. The 295RDB is 3-hour fire rated and UL Listed, which covers it for use in fire rated door assemblies up to that rating. It is also ADA compliant, so the lever meets accessible operation requirements for schools, healthcare, and government facilities.
6) The Marks USA 295RDB will not fit a 2 inch thick door - what Grade 1 cylindrical lock covers that thickness?
The Marks USA 295RDB is built for doors 1-5/8 inch to 1-7/8 inch. For a thicker door, the Dorma C150 is a Grade 1 heavy-duty cylindrical lock in entry/office function covering 1-3/8 inch to 2-1/4 inch, and the Dorma C853 is a Grade 1 entry keyed single cylinder lever lockset over the same 1-3/8 inch to 2-1/4 inch range. The Cal-Royal CAL30 is a Grade 1 extra heavy duty passage lockset for 1-3/8 inch to 2 inch doors. Note these are entry, office and passage functions rather than classroom intruder.
7) What is a Grade 1 classroom-function alternative to the Marks USA 295RDB that uses a keypad instead of a key?
The TownSteel XCE-9000 is an electronic classroom intruder cylindrical lockset with a keypad, Grade 1, heavy duty, for doors 1-3/4 inch to 2 inch thick. The Marks USA 295RDB is a mechanical Grade 1 cylindrical lockset that takes a Yale large format interchangeable core and covers doors 1-5/8 inch to 1-7/8 inch. If a school wants lockdown credentials issued as codes rather than keys, the XCE-9000 covers the same classroom intruder intent without a cylinder to key.
8) Is a Grade 1 cylindrical lever lock worth it over Grade 2 for a high traffic school corridor?
For corridor and classroom doors that get hit hundreds of times a day, yes. The Marks 295RDB is ANSI/BHMA Grade 1 and tested past 3.6 million cycles, and its stainless steel clutch lets the lever swing free when locked so the retractor and interior parts do not absorb forced-lever abuse. That is what kills lever droop on institutional doors. Grade 2 cylindrical locksets like the Orca OCL210 passage lockset are medium duty and better suited to interior offices and light traffic openings.
9) How does the Marks 295 lever mount - will the roses hold up to abuse?
The 295RDB uses 3-7/16 inch diameter spring-loaded roses secured with two #10 thru-bolts, so the trim clamps through the door rather than screwing into the face. Thru-bolted trim is what keeps roses from working loose on doors that get kicked and pulled, and it is why this chassis holds up where surface-screwed trim does not. The levers are solid cast zamac running on cast retractors and bronze roller bearings.
10) I need keypad or credential access on a classroom door instead of a keyed lever - what else does ZenSupply carry?
The Marks 295RDB is a mechanical cylindrical lockset keyed by an interchangeable core, with no electronics. If you want code or credential entry on the same cylindrical prep, the TownSteel XCE-9000 Series is a Grade 1 electronic classroom intruder cylindrical lockset with a keypad for 1-3/4 to 2 inch doors, the TownSteel FCE-4000 Series is an RFID electronic intruder classroom lockset for 1-3/4 inch doors, and the Schlage XE360M is a Grade 1 wireless tubular lock with classroom/storeroom function for 1-3/4 inch doors. Note the thinner-door limits on those compared with the 295RDB's 1-5/8 to 1-7/8 inch range.
11) Can I standardize a whole building on the Marks 295 Series lever lock?
That is what it is built for. The 295RDB is a commercial cylindrical lockset in US26D satin chrome, Grade 1, ADA compliant, UL Listed and 3-hour fire rated, on a standard 2-3/4 inch cylindrical prep with an ANSI strike. Because it takes a Yale Large Format IC and ships less core, every opening in the building can be pinned into one master key system and cores swapped without pulling hardware when staff turn over.
12) Do I need to specify handing when ordering the Marks USA 295RDB?
No handing to call out. The 295RDB is a cylindrical bored lockset with levers on both sides, and a cylindrical chassis is non-handed, so the same unit goes on a left or right hand door. What you do need to settle before ordering is the backset your doors are bored for, the door thickness (add the K1904 spacer if they are 1-3/8 inch), and the Yale Large Format core, since the lock ships less core.
13) For a closet or corridor door that only needs a lever with no locking, what costs less complexity than a 295RDB?
The Cal-Royal CAL30 is a Grade 1 extra heavy duty passage lockset for 1-3/8 inch to 2 inch doors, and the Orca Hardware OCL210 is a Grade 2 medium duty passage cylindrical lockset. Both are non-locking passage functions. The Marks USA 295RDB is a Grade 1 cylindrical lockset prepped for a Yale large format interchangeable core, so on a door that never needs to lock the cylinder prep is hardware you would not use.
14) Is the Alarm Lock Trilogy DL2700 a drop-in substitute for the Marks USA 295RDB?
They share door coverage but not the credential. The Alarm Lock Trilogy T2 DL2700 is a Grade 1 standalone electronic cylindrical lock with a digital keypad, 100 user codes, and IC/SFIC compatibility, for doors 1-5/8 inch to 1-7/8 inch - the same thickness range the Marks USA 295RDB is built for. The 295RDB is mechanical and accepts a Yale large format interchangeable core, so its access is keyed at the cylinder rather than programmed as user codes.
15) Which lock should I use on a restroom or single-occupancy door instead of a 295RDB?
Privacy function is the fit there. The Cal-Royal CAL20 is a Grade 1 extra heavy duty privacy lock for 1-3/8 inch to 2 inch doors, the Orca Hardware OCL240 is a Grade 2 medium duty privacy cylindrical lockset, and the Alarm Lock Trilogy 4100 is a Grade 1 electronic cylindrical lock in privacy function with a keypad for 1-5/8 inch to 1-7/8 inch doors. The Marks USA 295RDB is a classroom-intruder lever lockset and is not a privacy set.
16) I need an audit trail of who opened the classroom door - what replaces the Marks USA 295RDB?
The Alarm Lock T3 DL3075 is a Grade 1 electronic cylindrical lock with audit trail and keypad access. The Schlage NDEB is a Grade 1 heavy duty wireless cylindrical lock with a 2.4 GHz Bluetooth Low Energy reader, mobile enabled and multi-function, for doors 1-5/8 inch to 2 inch. The Marks USA 295RDB is a mechanical Grade 1 lockset, so access is controlled by the Yale large format core rather than logged electronically.
17) Does the Schlage XE360M do the same job as the Marks USA 295RDB?
They land on the same function but different chassis. The Schlage XE360M is a Grade 1 wireless tubular lock in classroom/storeroom function with an offline push button and smart mobile reader, for 1-3/4 inch doors. The Marks USA 295RDB is a cylindrical lockset with a thru-bolted 3-7/16 inch rose assembly and cast retractors on bronze roller bearings. Tubular and cylindrical chassis prep differently in the door, so an existing 295RDB cutout is not automatically an XE360M cutout.
18) What keyless mechanical lock works instead of a 295RDB when I do not want to key or power the door?
The Lockey 2830 is a mechanical pushbutton keyless knob lock with auto-locking passage function for doors 1-1/8 inch to 2 inch, and the Lockey 1600 is a heavy duty mechanical keyless knob lock with an adjustable backset over the same 1-1/8 inch to 2 inch range. Both are knob trim rather than a lever, so they are not an ADA lever substitute for the Marks USA 295RDB, which is ADA compliant with a curved lever.
19) Which of these cylindrical locks stay Grade 1 if I am standardizing a facility on the same durability spec as the Marks USA 295RDB?
The Marks USA 295RDB is ANSI/BHMA Grade 1 and UL listed. Peers that also carry Grade 1 include the Dorma C150 and C853, the Cal-Royal CAL20 and CAL30, the Alarm Lock Trilogy DL2700 and Trilogy 4100, the Schlage CO-100 and NDEB, and the TownSteel FCE-2000, FCE-4000, XCE-2000 and XCE-9000. The Dorma C501 and CL701 and the Orca OCL210, OCL240, OCL250 and OCL2170 are Grade 2, a different durability tier for a standardization spec.
20) I have an existing SFIC keying system - which alternatives to the Marks USA 295RDB accept an interchangeable core?
The Marks USA 295RDB ships less core and takes a Yale large format interchangeable core. Among the alternatives, the Alarm Lock Trilogy T2 DL2700 is IC/SFIC compatible while adding a digital keypad with 100 user codes, and the BEST 9KZ EZ Series is an electronic keypad cylindrical lock with a key override function. A locksmith keeping one keyway across a building will want to confirm core format before mixing these into an existing system.
21) Which alternative to the Marks USA 295RDB ties into an access control system with wiring rather than standing alone?
The SDC Electra 7200 Series is a solenoid controlled cylindrical lock running dual voltage 12/24VDC for doors 1-3/4 inch to 2 inch, so it is released by an access control panel. The SDC E75 Series is battery powered with keypad access control for 1-3/4 inch to 2-1/8 inch doors. The Marks USA 295RDB is a mechanical lockset and needs no power or wiring at the opening.
22) Can I use the Kwikset 912TNL SmartCode in place of a Marks USA 295RDB on a school corridor door?
The Kwikset 912TNL ZW500 SmartCode is an electronic Tustin lever with Z-Wave, keyed one side, for doors 1-3/8 inch to 2 inch. The Marks USA 295RDB is ANSI/BHMA Grade 1, UL listed, 3-hour fire rated and ADA compliant, built for commercial use. For an institutional opening carrying a fire rating and a Grade 1 spec, the two are not interchangeable on paper even though both are lever trim.
23) What entrance-function lever should I order alongside a Marks USA 295RDB for the keyed office doors on the same job?
The Dorma C853 is a Grade 1 entry keyed single cylinder lever lockset for 1-3/8 inch to 2-1/4 inch doors, and the Orca Hardware OCL250 is a Grade 2 medium duty entrance cylindrical lockset. The Stanley Security QCL150 is an entry lever with a Sierra bent lever and rose, less cylinder, square 2-3/4 inch backset latch and a 4-7/8 inch by 1-1/4 inch ASA strike. Note the 295RDB ships with an ANSI curved lip strike and a 1-1/8 inch by 2-1/4 inch latch front, so strike prep differs between them.
24) Is the TownSteel XCE-2000 different from the XCE-9000 when replacing a Marks USA 295RDB in a classroom?
Both are Grade 1 heavy duty electronic cylindrical locksets with keypads in classroom function for doors 1-3/4 inch to 2 inch. The XCE-9000 is specifically an electronic classroom intruder lockset, matching the classroom intruder intent of the Marks USA 295RDB, while the XCE-2000 is described as an electronic cylindrical lockset with keypad. If the lockdown behavior is the reason for the specification, the XCE-9000 is the closer read.
25) What finish does the Marks USA 295RDB lever lockset come in?
US26D satin chrome, and that is the single finish offered on the 295RDB. It is the standard institutional finish, so it matches most existing school and healthcare hardware without a special order.
26) Which keypad locks are limited to a 1-3/4 inch door and will not span the range a Marks USA 295RDB covers?
The Schlage CO-100 standalone electronic cylindrical lock in privacy function is listed for 1-3/4 inch doors, and the TownSteel FCE-2000 and FCE-4000 are also 1-3/4 inch. The Lockey E985 and E995 electronic keypad lever locks cover 1 3/8 inch to 1 3/4 inch. The Marks USA 295RDB covers 1-5/8 inch to 1-7/8 inch and drops to 1-3/8 inch with the K1904 spacer, so on a mixed-thickness building the fits do not all overlap.
27) Does the Accentra nexTouch NTB613 replace a Marks USA 295RDB for pushbutton entry?
The Accentra nexTouch NTB613 is a Grade 1 cylindrical keypad lock with pushbutton entry, from the nexTouch Series. It changes how the door is credentialed - codes at a keypad instead of a key in a cylinder. The Marks USA 295RDB is a mechanical Grade 1 cylindrical lockset that ships less core for a Yale large format interchangeable core and carries a 3-hour fire rating.
28) What is a double-sided credential option compared to the Marks USA 295RDB?
The Alarm Lock DL5200 is a double-sided electronic cylindrical lock with 100 user capacity and battery operation, for doors 1-5/8 inch to 1-7/8 inch - the same thickness range the Marks USA 295RDB is built for. Double-sided means a credential is required from both faces of the door, where the 295RDB retracts the latch by lever on the non-secure side.
29) How does the Stanley QCL200 compare to the Marks USA 295RDB on strike prep?
The Stanley Security QCL200 is a cylindrical lock supplied keyed different with an SC keyway and a 118F ANSI 1-1/8 inch by 2-3/4 inch strike. The Marks USA 295RDB ships with an ANSI curved lip strike, a 2-3/4 inch backset and a 1-1/8 inch by 2-1/4 inch latch front with a 9/16 inch throw. The strike dimensions differ, so a frame already cut for one is worth checking before swapping in the other.
30) Is the CENTRIOS CEB100 a substitute for a Marks USA 295RDB on a classroom door?
The CENTRIOS CEB100 is a Grade 1 smart Bluetooth cylindrical lock in privacy function. Privacy is a bathroom-and-office behavior, not the classroom intruder behavior of the Marks USA 295RDB, which is Grade 1 with a Yale large format interchangeable core prep. On a classroom opening specified for lockdown the CEB100 answers a different requirement.
How fast can I get the Marks USA 295RDB/26D-F14 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 Marks USA 295RDB/26D-F14 come with a warranty?
Absolutely. The Marks USA 295RDB/26D-F14 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 Marks USA 295RDB/26D-F14?
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