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 8237 LNA Mortise Lock, RH, 26D Sargent 8237 LNA Mortise Lock, RH, 26D
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    Sargent 8237 LNA Mortise Lock, RH, 26D

    Sargent
    MSRP: $891.00
    $494.22
    The Sargent 8237 LNA 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 in offices, hospitals, schools, and...
    Qty in Cart: 0
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    Price:
    MSRP: $891.00
    $494.22
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  • LC-8240 LL 26D Sargent Manufacturing Mortise Lock LC-8240 LL 26D Sargent Manufacturing Mortise Lock
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    LC-8240 LL 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,548.00
    $830.16
    LC-8240 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: $1,548.00
    $830.16
    Subtotal:
  • 60-8225 LE1P 26D Sargent Mortise Lock 60-8225 LE1P 26D Sargent Mortise Lock
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    60-8225 LE1P 26D Sargent Mortise Lock

    Sargent
    MSRP: $1,867.00
    $984.14
    The Sargent 8200 LE1P mortise lock in satin chrome (26D) is a heavy-duty security solution for commercial buildings, hospitals, and institutions. It exceeds ANSI/BHMA Grade 2 standards and is UL-listed for three-hour fire doors, delivering exceptional...
    Qty in Cart: 0
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    Price:
    MSRP: $1,867.00
    $984.14
    Subtotal:
  • Sargent 8224 LNB 26D Mortise Lock, Grade 2 Sargent 8224 LNB 26D Mortise Lock, Grade 2
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    Sargent 8224 LNB 26D Mortise Lock, Grade 2

    Sargent
    MSRP: $1,733.00
    $927.86
    The Sargent 8224 is a heavy-duty mortise lock engineered for maximum security and durability in commercial and institutional buildings. Exceeding ANSI/BHMA Grade 2 standards, it delivers exceptional strength for offices, hospitals, schools, and...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,733.00
    $927.86
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  • Sargent 8225 LNE Mortise Lock, 26D Finish Sargent 8225 LNE Mortise Lock, 26D Finish
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    Sargent 8225 LNE Mortise Lock, 26D Finish

    Sargent
    MSRP: $1,792.00
    $952.64
    The Sargent 8225 LNE is a heavy-duty mortise lock engineered for maximum security and durability in commercial applications. Exceeding ANSI/BHMA A156.13 Grade 1 standards, it delivers reliable performance in offices, hospitals, schools, and high-traffic...
    Qty in Cart: 0
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    Price:
    MSRP: $1,792.00
    $952.64
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  • Sargent 8200 26D RH Mortise Lock Sargent 8200 26D RH Mortise Lock
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    Sargent 8200 26D RH Mortise Lock

    Sargent
    MSRP: $1,699.00
    $913.58
    The Sargent 8200 mortise lock delivers Grade 1 security and durability for high-traffic commercial doors, offices, hospitals, and educational facilities. This heavy-duty mortise lock exceeds ANSI/BHMA A156.13 Series 1000 Grade 1 standards and is UL-cUL...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,699.00
    $913.58
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  • Sargent 8200 LW1L 26D Mortise Lock, Grade 2 Sargent 8200 LW1L 26D Mortise Lock, Grade 2
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    Sargent 8200 LW1L 26D Mortise Lock, Grade 2

    Sargent
    MSRP: $1,706.00
    $916.52
    The Sargent 8200 is a commercial-grade mortise lock engineered for maximum security and durability in high-traffic environments like offices, hospitals, schools, and behavioral health facilities. It exceeds ANSI/BHMA A156.13 Grade 2 standards and is...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,706.00
    $916.52
    Subtotal:
  • Sargent 8237 Mortise Lock, Grade 2, 32D Satin Stainless Sargent 8237 Mortise Lock, Grade 2, 32D Satin Stainless
    Quick view

    Sargent 8237 Mortise Lock, Grade 2, 32D Satin Stainless

    Sargent
    MSRP: $929.00
    $510.18
    The Sargent 8237 is a heavy-duty mortise lock built for commercial buildings, hospitals, schools, and secure facilities. It exceeds ANSI/BHMA Grade 1 standards and is UL-listed for three-hour fire doors, making it ideal for properties requiring maximum...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $929.00
    $510.18
    Subtotal:
  • Sargent 8224 LNP 26D Mortise Lock Sargent 8224 LNP 26D Mortise Lock
    Quick view

    Sargent 8224 LNP 26D Mortise Lock

    Sargent
    MSRP: $1,733.00
    $927.86
    The Sargent 8224 LNP 26D is a heavy-duty mortise lock built for high-traffic commercial and institutional doors. Exceeding ANSI/BHMA Grade 1 standards, it delivers superior strength and durability for offices, hospitals, schools, and behavioral health...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,733.00
    $927.86
    Subtotal:
  • Sargent 8243 LL 26D Mortise Lock Sargent 8243 LL 26D Mortise Lock
    Quick view

    Sargent 8243 LL 26D Mortise Lock

    Sargent
    MSRP: $869.00
    $484.98
    The Sargent 8243 LL 26D is a heavy-duty mortise lock exceeding ANSI/BHMA Grade 2 standards, designed for commercial buildings requiring maximum security and durability. Ideal for offices, hospitals, schools, and behavioral health facilities, it resists...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $869.00
    $484.98
    Subtotal:
  • Sargent 8216 LNA 26D RH Mortise Lock Sargent 8216 LNA 26D RH Mortise Lock
    Quick view

    Sargent 8216 LNA 26D RH Mortise Lock

    Sargent
    MSRP: $1,873.00
    $986.66
    The Sargent 8216 is a heavy-duty mortise lock engineered for institutional and commercial applications requiring maximum security and durability. Built to exceed ANSI/BHMA Grade 2 standards, it delivers superior strength for offices, hospitals, schools,...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,873.00
    $986.66
    Subtotal:
  • LC-8240 LB 26D Sargent Manufacturing Mortise Lock LC-8240 LB 26D Sargent Manufacturing Mortise Lock
    Quick view

    LC-8240 LB 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,548.00
    $830.16
    LC-8240 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:
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