Mortise Lock

A mortise lock fits into a deep pocket cut into the door edge, rather than through a round bore like a cylindrical lockset. That construction is why mortise locks are the standard for commercial buildings, schools, and apartment entries: the heavy cast or steel lock body withstands decades of high traffic, integrates deadbolt and latch in one unit, and offers far more functions (entry, classroom, storeroom, privacy, passage) than a cylindrical lock.

When choosing a mortise lock, start with the function you need on that door. An office function locks from outside while always allowing free egress. A storeroom function is always locked outside. An entrance function adds a deadbolt for after-hours security. Then confirm handing (left or right hand, regular or reverse bevel), backset, and whether you need it keyed into an existing system. Most of the mortise locks we sell accept standard or high-security cylinders, so you can upgrade key control without changing the lock body.

We carry Grade 1 commercial mortise locks from Marks USA, Sargent, Corbin Russwin, Yale, and others, including ornamental and storm-door mortise locks if your application is a gate or security screen door. If you're replacing an old mortise lock, send us a photo and measurements and we'll match it.

Mortise Lock

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  • LC-8259 LNF 32D Sargent Manufacturing Mortise Lock LC-8259 LNF 32D Sargent Manufacturing Mortise Lock
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    LC-8259 LNF 32D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,605.00
    $854.10
    LC-8259 LNF 32D Sargent Manufacturing Mortise LockWhen it comes to strength and durability, SARGENT continues to set standards with the 8200 Mortise lock. The 8200 far surpasses ANSI/BHMA A156.13 Series 1000 Grade 1 standards, making it the strongest and...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,605.00
    $854.10
    Subtotal:
  • Sargent 8245 WTJ 26D Mortise Lock Sargent 8245 WTJ 26D Mortise Lock
    Quick view

    Sargent 8245 WTJ 26D Mortise Lock

    Sargent
    MSRP: $962.00
    $534.04
    The Sargent 8245 WTJ 26D is a Grade 2 mortise lock engineered for high-security commercial and institutional applications. Built to exceed ANSI/BHMA A156.13 standards, it delivers superior strength and durability for offices, hospitals, schools, and...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $962.00
    $534.04
    Subtotal:
  • LC-8238 LNJ 32D Sargent Manufacturing Mortise Lock LC-8238 LNJ 32D Sargent Manufacturing Mortise Lock
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    LC-8238 LNJ 32D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,526.00
    $820.92
    LC-8238 LNJ 32D Sargent Manufacturing Mortise LockWhen it comes to strength and durability, SARGENT continues to set standards with the 8200 Mortise lock. The 8200 far surpasses ANSI/BHMA A156.13 Series 1000 Grade 1 standards, making it the strongest and...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,526.00
    $820.92
    Subtotal:
  • LC-8239 LNL 26D Sargent Manufacturing Mortise Lock LC-8239 LNL 26D Sargent Manufacturing Mortise Lock
    Quick view

    LC-8239 LNL 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,548.00
    $830.16
    LC-8239 LNL 26D Sargent Manufacturing Mortise LockWhen it comes to strength and durability, SARGENT continues to set standards with the 8200 Mortise lock. The 8200 far surpasses ANSI/BHMA A156.13 Series 1000 Grade 1 standards, making it the strongest and...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,548.00
    $830.16
    Subtotal:
  • Sargent 8200 LW1P 32D Mortise Lock 60-8237 LW1P 32D Sargent Mortise Lock
    Quick view

    Sargent 8200 LW1P 32D Mortise Lock

    Sargent
    MSRP: $1,730.00
    $926.60
    The Sargent 8200 LW1P 32D is a heavy-duty mortise lock exceeding ANSI/BHMA Grade 2 standards for commercial and institutional doors. Built for maximum security and durability, it suits offices, hospitals, schools, and behavioral health facilities where...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,730.00
    $926.60
    Subtotal:
  • LC-8227 LNL 26D Sargent Manufacturing Mortise Lock LC-8227 LNL 26D Sargent Manufacturing Mortise Lock
    Quick view

    LC-8227 LNL 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,587.00
    $846.54
    LC-8227 LNL 26D Sargent Manufacturing Mortise LockWhen it comes to strength and durability, SARGENT continues to set standards with the 8200 Mortise lock. The 8200 far surpasses ANSI/BHMA A156.13 Series 1000 Grade 1 standards, making it the strongest and...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,587.00
    $846.54
    Subtotal:
  • Sargent 8200 Series 26D Mortise Lock Sargent 8200 Series 26D Mortise Lock
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    Sargent 8200 Series 26D Mortise Lock

    Sargent
    MSRP: $1,822.00
    $965.24
    The Sargent 8200 Series mortise lock delivers Grade 1 security for high-traffic commercial doors in offices, hospitals, schools, and behavioral health facilities. This heavy-duty mortise lock exceeds ANSI/BHMA A156.13 standards and is UL-listed for...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,822.00
    $965.24
    Subtotal:
  • LC-8239 LNJ 26D Sargent Manufacturing Mortise Lock LC-8239 LNJ 26D Sargent Manufacturing Mortise Lock
    Quick view

    LC-8239 LNJ 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,362.00
    $837.32
    LC-8239 LNJ 26D Sargent Manufacturing Mortise LockWhen it comes to strength and durability, SARGENT continues to set standards with the 8200 Mortise lock. The 8200 far surpasses ANSI/BHMA A156.13 Series 1000 Grade 1 standards, making it the strongest and...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,362.00
    $837.32
    Subtotal:
  • Sargent 8225 WTA Mortise Lock, LH, 32D Sargent 8225 WTA Mortise Lock, LH, 32D
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    Sargent 8225 WTA Mortise Lock, LH, 32D

    Sargent
    MSRP: $914.00
    $519.00
    The Sargent 8225 WTA is a heavy-duty mortise lock engineered for maximum security and durability in commercial and institutional facilities. Exceeding ANSI/BHMA Grade 1 standards, it serves offices, hospitals, schools, and behavioral health environments...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $914.00
    $519.00
    Subtotal:
  • LC-8259 LL 26D Sargent Manufacturing Mortise Lock LC-8259 LL 26D Sargent Manufacturing Mortise Lock
    Quick view

    LC-8259 LL 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,530.00
    $822.60
    LC-8259 LL 26D Sargent Manufacturing Mortise LockWhen it comes to strength and durability, SARGENT continues to set standards with the 8200 Mortise lock. The 8200 far surpasses ANSI/BHMA A156.13 Series 1000 Grade 1 standards, making it the strongest and...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,530.00
    $822.60
    Subtotal:
  • Sargent 8200 LW1B 32D Mortise Lock, Grade 2 Sargent 8200 LW1B 32D Mortise Lock, Grade 2
    Quick view

    Sargent 8200 LW1B 32D Mortise Lock, Grade 2

    Sargent
    MSRP: $1,730.00
    $926.60
    The Sargent 8200 LW1B 32D is a heavy-duty mortise lock engineered for maximum security and durability in commercial and institutional facilities. It exceeds ANSI/BHMA Grade 2 standards and is UL-cUL listed for three-hour fire doors and windstorm...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,730.00
    $926.60
    Subtotal:
  • LC-8238 OA 26D RH Sargent Manufacturing Mortise Lock LC-8238 OA 26D RH Sargent Manufacturing Mortise Lock
    Quick view

    LC-8238 OA 26D RH Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,581.00
    $844.02
    LC-8238 OA 26D RH Sargent Manufacturing Mortise LockWhen it comes to strength and durability, SARGENT continues to set standards with the 8200 Mortise lock. The 8200 far surpasses ANSI/BHMA A156.13 Series 1000 Grade 1 standards, making it the strongest...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,581.00
    $844.02
    Subtotal:
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