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 8224 LNJ 26D Mortise Lock, Grade 2 Sargent 8224 LNJ 26D Mortise Lock, Grade 2
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    Sargent 8224 LNJ 26D Mortise Lock, Grade 2

    Sargent
    MSRP: $1,373.00
    $726.66
    The Sargent 8224 LNJ 26D is a heavy-duty mortise lock engineered for commercial and institutional buildings requiring maximum security and reliability. Built to ANSI/BHMA Grade 2 standards and UL-cUL listed for three-hour fire doors, it serves offices,...
    Qty in Cart: 0
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    Price:
    MSRP: $1,373.00
    $726.66
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  • Sargent 8200 LL 32D Mortise Lock Sargent 8200 LL 32D Mortise Lock
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    Sargent 8200 LL 32D Mortise Lock

    Sargent
    MSRP: $1,678.00
    $904.76
    The Sargent 8200 LL 32D is a heavy-duty mortise lock engineered for maximum security and durability in commercial and institutional buildings. It exceeds ANSI/BHMA Grade 2 standards and is UL-cUL listed for three-hour fire doors and windstorm...
    Qty in Cart: 0
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    Price:
    MSRP: $1,678.00
    $904.76
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  • LC-8237 LNW 26D Sargent Manufacturing Mortise Lock LC-8237 LNW 26D Sargent Manufacturing Mortise Lock
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    LC-8237 LNW 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,553.00
    $832.26
    LC-8237 LNW 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
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    Price:
    MSRP: $1,553.00
    $832.26
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  • Sargent 8225 WTJ 26D Mortise Lock Sargent 8225 WTJ 26D Mortise Lock
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    Sargent 8225 WTJ 26D Mortise Lock

    Sargent
    MSRP: $863.00
    $482.46
    The Sargent 8225 WTJ 26D is a heavy-duty mortise lock engineered for commercial and institutional facilities demanding maximum security and durability. Built to exceed ANSI/BHMA Grade 2 standards, it solves the need for reliable access control in...
    Qty in Cart: 0
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    Price:
    MSRP: $863.00
    $482.46
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  • Sargent 8237 LNA 32D RH Mortise Lock Sargent 8237 LNA 32D RH Mortise Lock
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    Sargent 8237 LNA 32D RH Mortise Lock

    Sargent
    MSRP: $1,723.00
    $923.66
    The Sargent 8237 LNA is a heavy-duty mortise lock engineered for commercial and institutional doors requiring maximum security and durability. It exceeds ANSI/BHMA Grade 1 standards and is UL-listed for three-hour fire doors, making it ideal for offices,...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,723.00
    $923.66
    Subtotal:
  • LC-8259 LNW 26D Sargent Manufacturing Mortise Lock LC-8259 LNW 26D Sargent Manufacturing Mortise Lock
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    LC-8259 LNW 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,581.00
    $844.02
    LC-8259 LNW 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: $1,581.00
    $844.02
    Subtotal:
  • LC-8226 EL 26D Sargent Manufacturing Mortise Lock LC-8226 EL 26D Sargent Manufacturing Mortise Lock
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    LC-8226 EL 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,548.00
    $830.16
    LC-8226 EL 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 8237 LNA 10B RH Mortise Lock Sargent 8237 LNA 10B RH Mortise Lock
    Quick view

    Sargent 8237 LNA 10B RH Mortise Lock

    Sargent
    MSRP: $1,723.00
    $923.66
    The Sargent 8237 LNA 10B RH is a heavy-duty mortise lock built for commercial and institutional doors requiring maximum security and durability. Exceeding ANSI/BHMA Grade 2 standards and UL-cUL listed for three-hour fire doors, it solves the need for...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,723.00
    $923.66
    Subtotal:
  • LC-8239 EL 26D Sargent Manufacturing Mortise Lock LC-8239 EL 26D Sargent Manufacturing Mortise Lock
    Quick view

    LC-8239 EL 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,548.00
    $830.16
    LC-8239 EL 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 8225 Mortise Lock, 26D Satin Chrome, Grade 2 Sargent 8225 Mortise Lock, 26D Satin Chrome, Grade 2
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    Sargent 8225 Mortise Lock, 26D Satin Chrome, Grade 2

    Sargent
    MSRP: $914.00
    $519.00
    The Sargent 8225 is a heavy-duty mortise lock engineered for commercial and institutional doors requiring maximum security and durability. Built to exceed ANSI/BHMA Grade 2 standards, it delivers superior strength for high-traffic offices, hospitals,...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $914.00
    $519.00
    Subtotal:
  • LC-8239 OP 26D Sargent Manufacturing Mortise Lock LC-8239 OP 26D Sargent Manufacturing Mortise Lock
    Quick view

    LC-8239 OP 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,548.00
    $830.16
    LC-8239 OP 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 26D LH Mortise Lock Sargent 8200 26D LH Mortise Lock
    Quick view

    Sargent 8200 26D LH Mortise Lock

    Sargent
    MSRP: $1,699.00
    $913.58
    The Sargent 8200 mortise lock is a Grade 2 certified, high-security solution for commercial doors requiring strength, durability, and compliance. Designed for offices, hospitals, schools, and behavioral health facilities, it exceeds ANSI/BHMA A156.13...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,699.00
    $913.58
    Subtotal:
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