Cal-Royal LSDD Grade 3 Double ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$32.71
$29.24
Cal-Royal Cal-Royal LSDD - Grade 3 Double Cylinder Deadbolt CAL-LSDD

Cal-Royal LSDD Grade 3 Double Cylinder Deadbolt with Solid Brass Cylinder

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Model: LSDD88-3
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$32.71
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Cal-Royal LSDD Grade 3 Double Cylinder Deadbolt with Solid Brass Cylinder

The Cal-Royal LSDD is a Grade 3 double cylinder deadbolt from the LSD Series, conforming to ANSI A156.2 Series 4000 Standard Duty requirements for reliable commercial and residential security. Built with a solid brass 6 pin "C" keyway cylinder, this deadbolt features an adjustable door thickness range of 1-3/8" (35mm) to 1-3/4" (45mm), an adjustable backset of 2-3/8" or 2-3/4", and a 1" throw with anti-saw pin for enhanced resistance to forced entry. Its tapered cylinder guard and metal insert turn freely under removal attempts, adding a layer of tamper resistance suitable for both commercial and residential door applications.

Key Features

  • Door Thickness Range: Adjustable 1-3/8" (35mm) to 1-3/4" (45mm) accommodates a wide range of standard door preparations.
  • Adjustable Backset: 2-3/8" or 2-3/4" backset options provide flexibility for varied door prep requirements.
  • Deadbolt Faceplate: Standard 2-1/4" x 1" faceplate packed with 1/8" plastic filler to convert to 1-1/8" wide door preparations.
  • Bore Diameter: 1" bore for latch and 1-1/2" or 2-1/8" bore for lock housing to fit common door prep standards.
  • Strike Plate: 1-1/8" x 2-3/4" square corner strike for secure frame engagement.
  • Solid Brass Cylinder Construction: 6 pin solid brass "C" keyway cylinder standard, with optional keyways including 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 and Kwikset, and compatibility with Medeco, Assa, Kaba and Cal-Royal HSK High Security Cylinders.
  • Tamper-Resistant Cylinder Guard: Tapered cylinder guard with metal insert turns freely under removal attempts to resist forced entry.
  • 1" Throw with Anti-Saw Pin: Adjustable latch bolt with anti-saw pin construction for added security against sawing attacks.
  • ADA Ergonomic Thumbturn: Designed for ease of operation in compliance with American Disability Act ergonomic requirements.
  • Re-Keyable Design: Re-keyable for master and construction keying, supporting flexible facility key management.

Certifications & Compliance

  • ANSI A156.2 Series 4000, Standard Duty Grade 3
  • ADA (American Disability Act) Compliant Ergonomic Thumbturn
  • Lifetime Warranty

Technical Specifications

  • Product Group: Mechanical Locks
  • Series: Chelsie LSD Series
  • Product Subgroup: Bored Locksets
  • Keying Type: Re-Keyable for Master and Construction Keying
  • Keyed: Yes
  • Product Model: LSD
  • Backset (Distance): 2-3/8 or 2-3/4 Adjustable, Round Corner
  • Product Function: Double Cylinder
  • Door Thickness Range: 1-3/8" to 1-3/4"
  • Product Category: Mechanical Locks
  • Department: Door Hardware

Typical Applications

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

Why Cal-Royal LSD?

Cal-Royal LSD Series deadbolts deliver dependable Grade 3 performance backed by solid brass cylinder construction and a tamper-resistant cylinder guard designed to resist forced entry. Engineered with adjustable backset and door thickness ranges plus broad keyway compatibility, the LSDD is built for straightforward specification across commercial and residential door hardware projects.

Product Specs

Product Group:
Mechanical Locks
Series:
Chelsie LSD Series
Grade:
Grade 3
Product Subgroup:
Bored Locksets
Product Type:
Deadbolts
Subcategory:
Deadbolts
Commercial/Residential:
Commercial
Keying Type:
Re-Keyable for Master and Construction Keying
Lock Function:
Deadbolt
Keyed:
Yes
Product Attribute:
Deadbolts
Product Model:
LSD
Backset (Distance):
2-3/8 or 2-3/4 Adjustable, Round Corner
Product Function:
Double Cylinder
Door Thickness Range:
1-3/8" to 1-3/4"
Product Category:
Mechanical Locks
Department:
Door Hardware

Cal-Royal LSDD88-3 – Frequently Asked Questions

1) Will the Cal-Royal LSDD deadbolt fit a 1-3/8 inch door, or is it 1-3/4 only?
Both. The LSDD adjusts across a 1-3/8 inch to 1-3/4 inch door thickness range, so it covers the standard commercial 1-3/4 inch door and the thinner 1-3/8 inch interior doors you still find in older buildings. No spacer kit needed inside that range.
2) Do I have to know my backset before ordering the Cal-Royal LSDD?
No. The LSDD ships with an adjustable latch that sets to either 2-3/8 or 2-3/4 inch backset, which are the two standard bored-door backsets, so one part covers both preps. The latch is round corner as supplied, and a 1/8 inch plastic filler is packed with the 2-1/4 x 1 inch faceplate to adapt it down to a 1-1/8 inch wide edge prep.
3) What holes do I need to bore for the Cal-Royal LSDD deadbolt?
Edge bore is 1 inch for the latch, and the face bore is either 1-1/2 inch or 2-1/8 inch for the lock housing. If your door already has a 2-1/8 inch cross bore from a previous deadbolt or lockset, the LSDD drops into it. The strike is a 1-1/8 x 2-3/4 inch square corner plate for the frame.
4) Should I use a double cylinder deadbolt or a single cylinder with a thumbturn?
The LSDD is keyed on both sides, no thumbturn. That is what you want on a door with glass beside or in it, where someone could break the lite and reach the turn. The tradeoff is egress: a key has to be present on the inside to get out, and many jurisdictions restrict double cylinder on required exits. If the opening needs free egress, go with a cylinder x thumbturn deadbolt instead, such as the Hager 3215 or the Arrow DBX61.
5) Can I key the Cal-Royal LSDD into my existing building master key system?
Yes. The LSDD is re-keyable for both master keying and construction keying. It comes standard with a solid brass 6 pin "C" keyway cylinder, and it can be ordered in 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 or Kwikset. It also accepts Medeco, Assa, Kaba and Cal-Royal HSK high security cylinders if the facility runs a restricted keyway.
6) Is a Grade 3 deadbolt enough for a commercial building?
The LSDD meets ANSI A156.2 Series 4000 Standard Duty, Grade 3, which is the entry commercial tier. It is a reasonable fit for tenant unit doors, back-of-house and light traffic openings. If your spec calls for Grade 1 or Grade 2, this one will not satisfy it. Grade 2 alternatives include the Dexter DB2000 double cylinder or the Delaney LU Series double cylinder; for Grade 1 double cylinder, look at the Design Hardware D1 Series or the Dexter DB1000.
7) I need to replace a double cylinder deadbolt on a 2 inch thick door. Will the Cal-Royal LSDD work?
No. The LSDD tops out at 1-3/4 inch door thickness. For a 2 inch door, the Deltana 7312KA2 double cylinder covers 1-3/8 to 2 inches at Grade 3, and the Corbin Russwin DL3011 cylindrical deadlock runs 1-3/4 to 2-1/4 inches.
8) What is the closest Grade 3 double cylinder deadbolt to the Cal-Royal LSDD?
The Callan Model 210S is the nearest straight equivalent: it is a Grade 3 deadbolt with a double cylinder function, matching the Cal-Royal LSDD, which is also Grade 3 with a double cylinder function. The Deltana 7312KA2 is another Grade 3 double cylinder deadbolt, and it lists a door thickness range of 1-3/8 inch to 2 inch versus the LSDD range of 1-3/8 inch to 1-3/4 inch, so it reaches thicker doors.
9) I need a heavier duty double cylinder deadbolt than the Cal-Royal LSDD for a high traffic entrance. What should I look at?
The Cal-Royal LSDD is a Grade 3 double cylinder deadbolt. For a higher ANSI grade in the same function, the Design Hardware D1 Series is a Grade 1 double cylinder deadbolt rated extra heavy duty for 1-3/4 inch doors, and the Dexter DB1000 is a Grade 1 double cylinder deadbolt covering 1-3/8 inch to 1-7/8 inch doors. At Grade 2 there is the Dexter DB2000 double cylinder, which covers the same 1-3/8 inch to 1-3/4 inch door range as the LSDD, and the Delaney LU Series Grade 2 double cylinder deadbolt.
10) My code official will not allow a double cylinder deadbolt on an egress door. What is the single cylinder version to order instead?
The Cal-Royal LSDD is keyed on both sides as a double cylinder deadbolt, which some jurisdictions prohibit on egress doors. For a keyed outside, thumbturn inside arrangement in the same class, the Callan Model 200S is a Grade 3 cylinder by thumbturn deadbolt. Stepping up a grade, the Dexter DB2000 single cylinder is Grade 2 for 1-3/8 inch to 1-3/4 inch doors, and the Hager 3215 is a Grade 2 cylinder by thumbturn deadbolt with a 1 inch throw over the same 1-3/8 inch to 1-3/4 inch door range. If no key is wanted at all on the inside face, the Arrow E60 is a Grade 2 non-keyed exit deadlock with a blank plate by thumbturn function for 1-3/8 inch to 1-3/4 inch doors.
11) What looks like a substitute for the Cal-Royal LSDD but will not fit the same door prep?
The Cal-Royal LSDD is a bored deadbolt using a 1 inch bore for the latch and a 1-1/2 inch or 2-1/8 inch bore for the housing. Several deadbolts in the same category need different preparation. The Emtek 2050 and 2051 are European mortise deadbolts with an integrated roller latch, and the Dormakaba D900 is a small case mortise deadbolt, all of which require a mortise pocket rather than a cross bore. The Codelocks CL200 and CL2200 are surface mounted deadbolts. The Arrow 460 is a mortise lock strike, not a lock at all.
12) Is the Cal-Royal LSDD ADA compliant?
The LSD Series thumbturn is built to ADA ergonomic requirements. Note that on the LSDD specifically there is no thumbturn at all, since it is keyed both sides, so ADA operable-hardware requirements are not met by key operation. If the opening is on an accessible route, specify a thumbturn version from the LSD Series rather than the double cylinder.
13) Can I use the Cal-Royal LSDD on a fire rated door?
Use a deadbolt with a stated fire rating for a rated opening. The Hager 3214 double cylinder and Hager 3215 single cylinder both carry a fire rating and cover the same 1-3/8 to 1-3/4 inch door thickness range, so either is a direct swap on the same prep.
14) Is the Hager 3214 double cylinder deadbolt interchangeable with the Cal-Royal LSDD?
They fit the same door thickness window - the Hager 3214 lists 1-3/8 inch to 1-3/4 inch, the same range the Cal-Royal LSDD covers. The differences are keying and rating: the Hager 3214 is a Grade 2 deadbolt supplied in the Schlage C keyway and carries a fire rating, while the LSDD is Grade 3 and ships with a solid brass 6 pin C keyway cylinder that is re-keyable for master and construction keying, with optional keyways including Schlage C-K.
15) We want to stop issuing keys to tenants. What replaces the Cal-Royal LSDD with a keypad or credential?
The Cal-Royal LSDD is a keyed mechanical deadbolt. Credential-based alternatives in the same deadbolt family include the Delaney KP400, a Grade 2 electronic deadbolt with a programmable remote, the Codelocks CL2210 electronic mortise deadbolt, and the Dormakaba Nova-D RFID multihousing smart electronic deadbolt. The Dormakaba Saffire LX-D is an RFID electronic deadbolt with BLE and electronic lock override. Note the Codelocks CL2210 is a mortise unit, so it does not use the same bored prep the LSDD does.
16) Our facility standardizes on small format interchangeable core. Is there an SFIC deadbolt alternative to the Cal-Royal LSDD?
The Cal-Royal LSDD ships with a solid brass 6 pin C keyway cylinder and is re-keyable for master and construction keying, but it is a conventional cylinder product. For an interchangeable core program, the Arrow E61 is a Grade 2 single cylinder deadlock with SFIC prep supplied less core for 1-3/8 inch to 1-3/4 inch doors, the Deltana CL200LAIC is a Grade 2 single deadbolt prepped for interchangeable core with a 2-3/4 inch backset, and the Delaney LM Series is a Grade 1 single cylinder less core deadbolt. All three are single cylinder, so they key outside and turn inside rather than keying both faces like the LSDD.
17) Will a Corbin Russwin DL3011 deadlock work in the same doors as the Cal-Royal LSDD?
Only partly. The Corbin Russwin DL3011 is a Grade 1 cylindrical deadlock listed for 1-3/4 inch to 2-1/4 inch doors in a cylinder by blank configuration, so it suits thicker doors than the Cal-Royal LSDD, which is adjustable for 1-3/8 inch to 1-3/4 inch. The DL3011 is also keyed on one side with a blank plate opposite, where the LSDD is a double cylinder keyed on both faces. The related Corbin Russwin DL3211 and DL2211 are listed for 1-3/4 inch doors.
18) The door is only bored on one side and I do not want to drill through. Is there an option other than the Cal-Royal LSDD?
The Cal-Royal LSDD is a through-bored double cylinder deadbolt requiring prep on both faces. For a one-sided condition, the Callan Model 205S is a Grade 3 one-sided half-bore deadbolt. Another non-through option is the Codelocks CL200 surface deadbolt with key override, which mounts on the face of the door.
19) I need a decorative double cylinder deadbolt instead of the utilitarian Cal-Royal LSDD. What are the options?
The Cal-Royal LSDD comes in Oil Rubbed Bronze, Satin Chrome, Bright Brass and Satin Stainless with a plain round trim. For designer trim in the same double cylinder function, the Baldwin Reserve contemporary round and contemporary square deadbolts are both double cylinder, the Baldwin Estates 8011 is a contemporary 1-5/8 inch double cylinder deadbolt, and the Emtek 8323 Modern Disc is a brass double cylinder deadbolt.
20) The Cal-Royal LSDD is a standalone deadbolt. What if I need the deadbolt combined with a latch on the same door?
The Cal-Royal LSDD is a deadbolt only, with a 1 inch throw bolt and no latch. If the opening needs both, the Falcon H2101 is a Grade 2 entrance interconnected lock with a single cylinder deadbolt, and the Detex DX Series provides hinge side locking deadbolts with multi-point security. The International Door Closers DT-1851 is a long throw deadlatch lock, which combines the two functions in one case.
How fast can I get the Cal-Royal LSDD88-3 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 Cal-Royal LSDD88-3 come with a warranty?
Absolutely. The Cal-Royal LSDD88-3 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 LSDD88-3?
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