Medeco 11R53W Maxum Residentia...
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$491.00
$361.09
Medeco 11R53W Maxum Residential Double Cylinder Deadbolt, Biaxial, G3 Keyway, Captive Key

Medeco 11R53W Maxum Residential Double Cylinder Deadbolt, Biaxial, G3 Keyway, Captive Key

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Model: 11R533W-26-G3P
$491.00
$361.09
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Medeco 11R53W Maxum Residential Double Cylinder Deadbolt — Biaxial, G3 Keyway, Captive Key

The Medeco Maxum Residential Double Cylinder Deadbolt (Model 11R53W) is a UL 437 Listed, BHMA A156.5 Grade 1 Certified high-security deadbolt engineered to deliver unmatched protection against unauthorized key duplication, bumping attacks, picking, drilling, wrenching, kicking, and other forms of physical abuse. Featuring Biaxial cylinder technology with the G3 Keyway and Captive Key function, this deadbolt fits doors 1 3/8" to 2 1/2" thick and installs into a standard 2 1/8" crossbore and 1" edge bore (ANSI A115.13 prep). A solid 1" hardened steel bolt housed in heavy-gauge tubular steel provides maximum defense against physical attack, while the Medeco 4 (M4) design carries a utility patent protecting against unauthorized key duplication.

Key Features

  • Door Thickness Compatibility: Fits doors 1 3/8" to 2 1/2" thick with a standard 2 1/8" crossbore and 1" edge bore (ANSI A115.13 prep) for straightforward installation.
  • Solid 1" Hardened Steel Bolt: A solid 1" hardened steel bolt and bolt-throwing mechanism are surrounded by a heavy-gauge tubular steel housing for maximum resistance to crowbar and physical attacks.
  • Medeco 4 (M4) Key Control: Patent-pending key control technology protects against unauthorized duplication of keys, including protection against 3D-printed key copies or blanks via a patent-pending movable element in the key.
  • Biaxial Cylinder Technology with G3 Keyway: Angled cuts on keys along with fore and aft positioning provide added dimensions that dramatically increase key combinations, enabling some of the largest master key systems in the industry.
  • Drill and Pick Resistance: Hardened steel inserts and rotating pins provide drill and pick resistance per UL 437 standard; solid-brass construction with strategically placed drill pins offers maximum drill protection.
  • Steel Shroud & High-Security Strike Plate: Steel shroud over bolt protects against "ice pick" type attacks; high-security strike plate features a special box design with 2" screws that anchor directly to the building structure, preventing kick-in attacks.
  • Master Keying Capabilities: M4 deadbolts can be master keyed into a system that includes M4, M4 BiLevel, and M4 CLIQ keys and cylinders, supporting extremely large master key systems.
  • Captive Key Function: Double cylinder captive key design provides added security control for interior and exterior cylinder operation.

Certifications & Compliance

  • UL 437 Listed — High Security Cylinders
  • BHMA A156.5 Grade 1 Certified Deadbolt
  • ANSI/BHMA A156.36 Grade 1 Certified Cylinders
  • BHMA A156.30 Certified Locking Technology (Key Control)
  • ANSI A115.13 Door Prep Compatible

Technical Specifications

  • Series: Maxum® Residential Deadbolt
  • Cylinder Technology: Medeco Biaxial
  • Pinning: 5 or 6-Pin
  • Keyway: G3 Keyway
  • Certification: ANSI/BHMA A156.36 Grade 1 rated hardware platform
  • Bolt: 1" solid hardened-steel bolt in heavy-gauge steel housing
  • Door Thickness: Fits doors 1-3/8" to 2-1/2" thick
  • Door Prep: Standard 2-1/8" crossbore, 1" edge bore (ANSI/BHMA A115.13)
  • Construction: Solid-brass cylinder construction with hardened steel inserts
  • Warranty: 2-year manufacturer's warranty

Typical Applications

  • Residential Entry Doors Requiring High-Security Key Control
  • Multi-Unit Residential Properties with Master Key Systems
  • Upscale Residential Communities and Gated Estates
  • Home Offices and Private Studios Requiring Restricted Access
  • Secondary Residential Structures (Guesthouses, Carriage Houses)
  • Residential Applications Requiring UL 437 Compliance
  • Properties Requiring Protection Against Unauthorized Key Duplication

Why Medeco?

Medeco Maxum deadbolts are built to the most demanding security standards, combining a solid 1" hardened steel bolt in heavy-gauge tubular steel housing with ANSI/BHMA A156.36 Grade 1 and UL 437 Listed cylinders for proven resistance to picking, drilling, bumping, and physical attack. The Biaxial Medeco 4 design delivers patent-pending key control and 3D-print deterrence, making the Maxum the choice for residential applications where uncompromising security and key management are essential.

Manufacturer Resources

Medeco Product Catalog

Product Specs

Product Group:
Mechanical Locks
Series:
Maxum Series
Subcategory:
Deadbolts
Product Subgroup:
Bored Locksets
Product Type:
Deadbolts
Commercial/Residential:
Residential
Keyed:
Yes
Grade:
Grade 1
Duty Level:
Heavy Duty
Technology:
Biaxial
Keyed Function:
Double Cylinder
Lock Function:
Deadbolt
Product Model:
11R53W
Product Function:
Captive Key
Keyway Options:
G3 Keyway
Product Category:
Mechanical Locks
Department:
Door Hardware

Medeco 11R533W-26-G3P – Frequently Asked Questions

1) Will the Medeco 11R53W Maxum deadbolt fit my existing door prep?
The 11R53W drops into a standard 2-1/8 inch crossbore with a 1 inch edge bore, which is the ANSI A115.13 prep almost every bored deadbolt already uses. It covers doors 1-3/8 to 2-1/2 inches thick, so it handles thick custom entry slabs that most residential deadbolts top out short of. Backset is ordered, not adjusted: pick 2-3/8 inch or 2-3/4 inch, both with a 1 inch faceplate. Measure from the door edge to the center of the existing bore before you order.
2) What is a double cylinder captive key deadbolt and should I use one on an entry door?
Double cylinder means a key is required on both sides, inside and out, with no thumbturn. The Maxum 11R53W is the captive key version of that function, which keeps the interior key in the cylinder while the door is occupied. It's the right choice on a door with glass beside or in it, where a thumbturn could be reached through a broken pane. It is the wrong choice where egress code requires a keyless exit, and it's a decision to make with your local authority. If you want a keyed outside and turn inside instead, that's the cylinder x thumbturn function, like the Grade 1 Delaney LM Series or the Deltana CL200LM.
3) Can the Medeco Maxum deadbolt be master keyed into an existing Medeco system?
Yes. The 11R53W uses Medeco Biaxial cylinders in the G3 keyway, and M4 deadbolts master key into a system containing M4, M4 BiLevel, and M4 CLIQ keys and cylinders. Biaxial adds angled key cuts plus fore and aft chamber positioning, which is where the extra combination depth for large master systems comes from. Pick your pinning on the order: 5 pin or 6 pin, and choose Pinned if you want it built to your bitting, or Sub-Assembled if your locksmith is pinning it in house.
4) What do I have to specify when ordering a Medeco 11R53W?
Five things decide the part. Keying: keyed different, keyed alike, or to a specific keycode you supply. Backset: 2-3/8 inch or 2-3/4 inch, each with a 1 inch faceplate. Cylinder: 5 pin or 6 pin. Pinning: Pinned, or Sub-Assembled for a locksmith to key on site. Finish: twelve options, from 605 bright brass and 626 satin chrome through 613 dark bronze oil-rubbed, 622 flat black, 619 satin nickel, and 20 antique nickel. If you're adding to an existing Medeco system, the keycode field is where that goes.
5) Is the Medeco Maxum deadbolt actually pick and drill resistant, or is that marketing?
It carries a UL 437 Listing, which is the standard that tests high security cylinders for picking and drilling, and it is BHMA A156.5 Grade 1 certified as a deadbolt with ANSI/BHMA A156.36 Grade 1 cylinders. The mechanics behind that listing: hardened steel inserts and rotating pins in a solid brass cylinder, plus drill pins. Key control is separately certified under BHMA A156.30. That combination of listings is the difference between this and a Grade 1 deadbolt with a conventional cylinder.
6) Can I key a Medeco Maxum deadbolt alike with my Schlage or Kwikset locks?
No. The 11R53W is a Biaxial G3 keyway cylinder, a restricted Medeco keyway, so it will not accept a Schlage or other conventional key and cannot be keyed alike to one. If you want one key across the door, the rest of the hardware needs Medeco Biaxial G3 cylinders too. If keying alike to a Schlage C system is the requirement, a conventional deadbolt built for that keyway is the answer instead, such as the Hager 3214 double cylinder with the Schlage C keyway.
7) My door is 2 inches thick. Which deadbolt will actually fit?
The Maxum 11R53W will. It's rated 1-3/8 to 2-1/2 inches, which is unusually deep for a bored deadbolt and is the reason it turns up on thick custom and solid wood entry doors. Most of the alternatives stop short: Dexter DB1000 tops out at 1-7/8 inch, Hager 3215 and Accentra D111 at 1-3/4 inch. The Deltana 7312KA2 double cylinder reaches 2 inches exactly. Above 1-7/8 inch, your options narrow fast.
8) What is the closest Grade 1 double cylinder deadbolt to the Medeco 11R53W Maxum if a high-security restricted keyway is not required?
The Design Hardware D1 Series double cylinder deadbolt is a Grade 1 double cylinder deadbolt rated extra heavy duty for 1-3/4 inch doors. The Medeco Maxum 11R53W is also Grade 1 and heavy duty with a double cylinder keyed function, but it runs Medeco Biaxial cylinders in the G3 keyway, which is what buys the patented key control. The Dexter DB1000 double cylinder is another Grade 1 option and covers doors 1-3/8 inch to 1-7/8 inch. Choose the Maxum when keys must be controlled against unauthorized duplication; choose the D1 or DB1000 when a standard keyway is acceptable.
9) The opening needs a thumbturn on the inside instead of a key both sides - what deadbolt replaces the Medeco 11R53W Maxum?
The Medeco Maxum 11R53W is a double cylinder deadbolt, keyed on both sides. Where egress rules or occupant preference call for a thumbturn inside, the Dexter DB1000 single cylinder is a Grade 1 cylinder x thumbturn deadbolt for doors 1-3/8 inch to 1-7/8 inch, the Delaney LM Series is a Grade 1 cylinder x thumbturn deadbolt supplied less core, and the Accentra D111 is a Grade 1 cylinder x thumbturn deadbolt with a 2-3/8 inch backset for doors 1-3/8 inch to 1-3/4 inch. The Maxum itself is offered in 2-3/4 inch and 2-3/8 inch backsets, so backset carries over cleanly to the D111 on a 2-3/8 inch bore.
10) Which deadbolt should be used on a 2-1/4 inch thick door instead of a Grade 1 residential bolt rated to 1-3/4 inch?
The Medeco Maxum 11R53W fits doors 1-3/8 inch to 2-1/2 inch, so it covers thick doors directly. Among the alternatives, the Corbin Russwin DL3011 Grade 1 cylindrical deadlock covers 1-3/4 inch to 2-1/4 inch. Bolts such as the Design Hardware D1 and the Corbin Russwin DL3211 are built for 1-3/4 inch doors, and the Dexter DB2000 double cylinder covers 1-3/8 inch to 1-3/4 inch, so a thick stile or a double-layer door rules those out.
11) The facility standardizes on small format interchangeable core - what deadbolt takes an SFIC instead of a Medeco Biaxial cylinder?
The Medeco Maxum 11R53W is built around Medeco Biaxial cylinders in the G3 keyway, offered in 5 pin and 6 pin, so it keys into a Medeco system rather than an SFIC system. Where the facility keys everything to interchangeable cores, the Arrow E61 is a Grade 2 single cylinder deadlock prepped for SFIC less core for doors 1-3/8 inch to 1-3/4 inch, the Deltana CL200LAIC is a Grade 2 single deadbolt with interchangeable core prep and a 2-3/4 inch backset, and the Delaney LM Series is a Grade 1 single cylinder deadbolt supplied less core.
12) Which deadbolt is used on a fire rated door opening rather than a Medeco Maxum residential bolt?
The Hager 3214 is a Grade 2 double cylinder deadbolt with a Schlage C keyway carrying a fire rating, for doors 1-3/8 inch to 1-3/4 inch, and the Hager 3118 is a Grade 1 classroom deadbolt with a Schlage C keyway and 6-pin cylinder, also fire rated for the same door range. The Cal-Royal CRB800 is a Grade 1 heavy duty single cylinder deadbolt with a UL 3-hour fire rated latch. The Medeco Maxum 11R53W is a Grade 1 residential deadbolt with UL 437 listed Biaxial cylinders, a listing that covers the cylinder against picking and drilling.
13) I manage a building and need one deadbolt across all the units. Is the Medeco Maxum the right call?
It fits that job well because of key control rather than the bolt. The M4 design carries a utility patent against unauthorized duplication, including a movable element in the key aimed at 3D printed copies, so a tenant can't get a copy cut at a hardware store. Order keyed alike or to a keycode and the whole fleet runs on one system with a master above it. It covers 1-3/8 to 2-1/2 inch doors, which absorbs mixed door thicknesses across an older building. It is a residential grade product with heavy duty construction, and the double cylinder function means residents need a key to get out, so check egress requirements for your unit doors before standardizing on this function.
14) What is a cheaper double cylinder deadbolt if I don't need Medeco key control?
Key control is what you're paying for on the 11R53W, so if restricted keys aren't the requirement there are simpler double cylinder options. The Design Hardware D1 Series is Grade 1 double cylinder for 1-3/4 inch doors. Dexter DB1000 is Grade 1 double cylinder covering 1-3/8 to 1-7/8 inch. Stepping down a grade, Dexter DB2000 and the Delaney LU Series are Grade 2 double cylinder, and Hager 3214 is Grade 2 for 1-3/8 to 1-3/4 inch doors. None of those give you patented key control or a UL 437 cylinder, and none reach 2-1/2 inch doors.
15) Should I order 5 pin or 6 pin cylinders for a Medeco Maxum?
Six pin gives you more chambers to work with, which matters when the deadbolt has to sit inside a master key system with room to expand. Five pin is the simpler build for a standalone door or a small keyed alike group. The 11R53W is offered both ways in the G3 keyway, so match whatever pinning your existing Medeco system already runs, otherwise the new lock won't sit under the same master.
16) Is the Callan 210S double cylinder deadbolt an equivalent to the Medeco 11R53W Maxum?
Both are double cylinder deadbolts, but they sit at different certification levels. The Callan Model 210S is a Grade 3 double cylinder deadbolt. The Medeco Maxum 11R53W is Grade 1 and heavy duty, with Biaxial cylinders in the G3 keyway. The Delaney LU Series double cylinder is Grade 2, and the Deltana 7312KA2 double cylinder is Grade 3 covering doors 1-3/8 inch to 2 inch. If the specification calls out Grade 1, the 210S, LU, and 7312KA2 do not meet it; if it only calls for a key-both-sides function, they do.
17) What deadbolt looks like a substitute for a Medeco Maxum double cylinder but will not work the same way in the door?
Several parts share the word deadbolt without sharing the function. The Codelocks CL200 is a surface deadbolt with key override and the CL2200 is an electronic surface deadbolt, both light to medium duty and mounted on the door face rather than in a 2-1/8 inch crossbore. The Emtek 2050 is a European mortise deadbolt with an integrated roller latch, which needs a mortise pocket. The Arrow 460 is a mortise lock strike, not a lock. The Baldwin 8BR0618001 is a deadbolt spacer. The Medeco Maxum 11R53W is a bored deadbolt for a standard 2-1/8 inch crossbore and 1 inch edge bore.
18) What is a lower-cost deadbolt for interior or lower-risk doors when the Medeco Maxum is used on the exterior openings?
For back-of-house or interior doors in the same building, the Arrow DBX61 is a Grade 2 single cylinder deadbolt, the Cal-Royal CB160 is a Grade 2 single cylinder deadbolt with a tamper-resistant cylinder guard, and the Cal-Royal ED500 is a Grade 3 single cylinder deadbolt with an adjustable backset for doors 1-3/8 inch to 1-3/4 inch. The Medeco Maxum 11R53W stays on the openings that need Grade 1 hardware and Biaxial G3 key control. Note that these alternates are all cylinder x thumbturn, so they are not a match where a key is required on both sides.
19) What is used instead of a keyed deadbolt on a door that has to allow free egress from the inside?
A double cylinder bolt like the Medeco Maxum 11R53W requires a key on the inside as well as the outside, which is why it is placed on residential openings where that control is wanted. On an opening that must release without a key, the Arrow E60 is a Grade 2 non-keyed exit deadlock with a blank plate outside and a thumbturn inside for doors 1-3/8 inch to 1-3/4 inch, and the Callan 205S is a Grade 3 one-sided half-bore deadbolt. The Corbin Russwin DL2211 is a Grade 1 cylindrical deadlock in classroom function with cylinder by blank for 1-3/4 inch doors, where operation is from the outside only.
20) What replaces a keyed Medeco Maxum deadbolt when the property wants to stop issuing keys altogether?
The Medeco Maxum 11R53W is a keyed double cylinder deadbolt whose whole design is around controlling key duplication. If the property would rather move off keys, the Codelocks CL2210 is an electronic mortise deadbolt, the Delaney KP400 is a Grade 2 electronic deadbolt with a programmable remote, the Dormakaba Saffire LX-D is an RFID electronic deadbolt with BLE and electronic lock override, and the Dormakaba Nova-D is an RFID multihousing smart electronic deadbolt. The mortise units need a mortise pocket rather than the 2-1/8 inch crossbore the Maxum uses.
21) What finish should I order to match the rest of my door hardware?
Twelve finishes are available on the Maxum 11R53W, called out by BHMA number so they cross reference to your other trim: 605 bright brass, 606 satin brass, 609 antique brass, 610 satin brass blackened, 612 satin bronze, 613 dark bronze oil-rubbed, 619 satin nickel, 622 flat black, 624 dark bronze, 625 bright chrome, 626 satin chrome, and 20 antique nickel. If the existing levers are marked 626 or US26D, order 626 and the pair will read the same.
22) Is the Baldwin Reserve double cylinder deadbolt the same kind of product as the Medeco Maxum 11R53W?
Both are double cylinder deadbolts. The Baldwin Reserve Contemporary Round and Contemporary Square deadbolts and the Baldwin Estates 8011 contemporary 1-5/8 inch double cylinder are selected largely on trim shape and appearance. The Medeco Maxum 11R53W is a heavy duty Grade 1 double cylinder deadbolt selected on the Biaxial G3 cylinder and key control, and it is offered in twelve finishes including 605 bright brass, 613 dark bronze oil-rubbed, 619 satin nickel, 622 flat black, and 626 satin chrome, so it can be matched to existing trim on a run of doors.
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Does the Medeco 11R533W-26-G3P come with a warranty?
Absolutely. The Medeco 11R533W-26-G3P is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
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