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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  • Sargent 8200 26D Mortise Lock Sargent 8200 26D Mortise Lock
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    Sargent 8200 26D Mortise Lock

    Sargent
    MSRP: $1,910.00
    $1,082.20
    The Sargent 8200 mortise lock delivers Grade 1 security for high-traffic commercial doors in offices, hospitals, schools, and behavioral health facilities. This UL-listed lock exceeds ANSI/BHMA A156.13 standards, offering superior strength, durability,...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,910.00
    $1,082.20
    Subtotal:
  • LC-8237 LNA 10B LH Sargent Manufacturing Mortise Lock LC-8237 LNA 10B LH Sargent Manufacturing Mortise Lock
    Quick view

    LC-8237 LNA 10B LH Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,577.00
    $842.34
    LC-8237 LNA 10B LH 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: $1,577.00
    $842.34
    Subtotal:
  • LC-8237 EB 32D Sargent Manufacturing Mortise Lock LC-8237 EB 32D Sargent Manufacturing Mortise Lock
    Quick view

    LC-8237 EB 32D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,532.00
    $823.44
    LC-8237 EB 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: $1,532.00
    $823.44
    Subtotal:
  • Sargent 8200 26D Mortise Lock Sargent 8200 26D Mortise Lock
    Quick view

    Sargent 8200 26D Mortise Lock

    Sargent
    MSRP: $1,654.00
    $874.68
    The Sargent 8200 mortise lock is a heavy-duty access control solution for commercial buildings, hospitals, schools, and secure facilities. It exceeds ANSI/BHMA Grade 1 standards and delivers industry-leading strength and durability. Perfect for...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,654.00
    $874.68
    Subtotal:
  • LC-8237 EE 32D Sargent Manufacturing Mortise Lock LC-8237 EE 32D Sargent Manufacturing Mortise Lock
    Quick view

    LC-8237 EE 32D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,577.00
    $842.34
    LC-8237 EE 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: $1,577.00
    $842.34
    Subtotal:
  • LC-8204 LB 26D Sargent Manufacturing Mortise Lock LC-8204 LB 26D Sargent Manufacturing Mortise Lock
    Quick view

    LC-8204 LB 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,508.00
    $813.36
    LC-8204 LB 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: $1,508.00
    $813.36
    Subtotal:
  • Sargent 8200 Series 60-8243 Mortise Lock, 26D Sargent 8200 Series 60-8243 Mortise Lock, 26D
    Quick view

    Sargent 8200 Series 60-8243 Mortise Lock, 26D

    Sargent
    MSRP: $1,793.00
    $953.06
    The Sargent 8200 Series mortise lock is a heavy-duty security solution for commercial buildings, hospitals, schools, and offices. Exceeding ANSI/BHMA Grade 2 standards, this lock delivers superior strength and durability while resisting unauthorized...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,793.00
    $953.06
    Subtotal:
  • LC-8248 LB 26D Sargent Manufacturing Mortise Lock LC-8248 LB 26D Sargent Manufacturing Mortise Lock
    Quick view

    LC-8248 LB 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,548.00
    $830.16
    LC-8248 LB 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 8245 LNA 26D RH Mortise Lock Sargent 8245 LNA 26D RH Mortise Lock
    Quick view

    Sargent 8245 LNA 26D RH Mortise Lock

    Sargent
    MSRP: $1,792.00
    $952.64
    The Sargent 8245 LNA is a heavy-duty mortise lock engineered for maximum security and durability in commercial and institutional buildings. Exceeding ANSI/BHMA Grade 1 standards, it delivers superior strength against forced entry and wear, making it...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,792.00
    $952.64
    Subtotal:
  • LC-8237 EW 26D Sargent Manufacturing Mortise Lock LC-8237 EW 26D Sargent Manufacturing Mortise Lock
    Quick view

    LC-8237 EW 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,553.00
    $832.26
    LC-8237 EW 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: $1,553.00
    $832.26
    Subtotal:
  • 60-8240 LB 26D Sargent Mortise Lock 60-8240 LB 26D Sargent Mortise Lock
    Quick view

    60-8240 LB 26D Sargent Mortise Lock

    Sargent
    MSRP: $1,840.00
    $972.80
    The Sargent 60-8240 LB 26D is a heavy-duty mortise lock engineered for maximum security and durability in commercial and institutional settings. It exceeds ANSI/BHMA Grade 1 standards and is UL-listed for three-hour fire doors, making it ideal for...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,840.00
    $972.80
    Subtotal:
  • Sargent 8200 LW1L 26D Mortise Lock Sargent 8200 LW1L 26D Mortise Lock
    Quick view

    Sargent 8200 LW1L 26D Mortise Lock

    Sargent
    MSRP: $1,793.00
    $953.06
    The Sargent 8200 LW1L 26D is a heavy-duty mortise lock built for maximum strength and security in commercial and institutional settings. ANSI/BHMA Grade 2 certified and UL-listed for three-hour fire doors, it exceeds industry standards for cycle life and...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,793.00
    $953.06
    Subtotal:
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