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-8267 LL 26D Sargent Manufacturing Mortise Lock LC-8267 LL 26D Sargent Manufacturing Mortise Lock
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    LC-8267 LL 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,563.00
    $836.46
    LC-8267 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
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    Price:
    MSRP: $1,563.00
    $836.46
    Subtotal:
  • Sargent 8290 LNL 26D Mortise Lock Sargent 8290 LNL 26D Mortise Lock
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    Sargent 8290 LNL 26D Mortise Lock

    Sargent
    MSRP: $1,822.00
    $965.24
    The Sargent 8290 LNL 26D is a heavy-duty mortise lock engineered for high-security commercial and institutional applications. Exceeding ANSI/BHMA Grade 1 standards, it delivers superior strength and durability for offices, hospitals, schools, and...
    Qty in Cart: 0
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    MSRP: $1,822.00
    $965.24
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  • LC-8289 LB 26D Sargent Manufacturing Mortise Lock LC-8289 LB 26D Sargent Manufacturing Mortise Lock
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    LC-8289 LB 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,539.00
    $826.38
    LC-8289 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: $1,539.00
    $826.38
    Subtotal:
  • Sargent 8200 LW1L 26D Mortise Lock Sargent 8200 LW1L 26D Mortise Lock
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    Sargent 8200 LW1L 26D Mortise Lock

    Sargent
    MSRP: $1,745.00
    $932.90
    The Sargent 8200 LW1L 26D is a heavy-duty mortise lock engineered for high-security commercial and institutional applications. It exceeds ANSI/BHMA Grade 1 standards and delivers superior strength, reliability, and durability. Ideal for offices,...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,745.00
    $932.90
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  • LC-8255 LNB 32D Sargent Manufacturing Mortise Lock LC-8255 LNB 32D Sargent Manufacturing Mortise Lock
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    LC-8255 LNB 32D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,532.00
    $823.44
    LC-8255 LNB 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 Mortise Lock 26D Sargent 8200 Mortise Lock 26D
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    Sargent 8200 Mortise Lock 26D

    Sargent
    MSRP: $1,743.00
    $932.06
    The Sargent 8200 Mortise Lock is a Grade 1 certified heavy-duty lockset designed for high-security commercial applications in offices, hospitals, schools, and behavioral health facilities. It exceeds ANSI/BHMA A156.13 standards and is UL-listed for...
    Qty in Cart: 0
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    MSRP: $1,743.00
    $932.06
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  • LC-8243 LNF 26D Sargent Manufacturing Mortise Lock LC-8243 LNF 26D Sargent Manufacturing Mortise Lock
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    LC-8243 LNF 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,646.00
    $871.32
    LC-8243 LNF 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: $1,646.00
    $871.32
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  • Sargent 8200 Series LE1J 26D Mortise Lock Sargent 8200 Series LE1J 26D Mortise Lock
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    Sargent 8200 Series LE1J 26D Mortise Lock

    Sargent
    MSRP: $1,818.00
    $963.56
    The Sargent 8200 Series LE1J mortise lock delivers Grade 1 security and durability for high-traffic commercial doors. Built to exceed ANSI/BHMA A156.13 standards, this UL-listed lock suits offices, hospitals, schools, and behavioral health facilities...
    Qty in Cart: 0
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    Price:
    MSRP: $1,818.00
    $963.56
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  • LC-8249 LNE 26D Sargent Manufacturing Mortise Lock LC-8249 LNE 26D Sargent Manufacturing Mortise Lock
    Quick view

    LC-8249 LNE 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,618.00
    $859.56
    LC-8249 LNE 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: $1,618.00
    $859.56
    Subtotal:
  • 8297 WTJ 26D Sargent Manufacturing Mortise Lock 8297 WTJ 26D Sargent Manufacturing Mortise Lock
    Quick view

    8297 WTJ 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,316.00
    $702.72
    8297 WTJ 26D Sargent Manufacturing Mortise LockFeatures: ANSI/BHMA Grade 2 certified for cycle and strength requirements UL-cUL listed for three-hour fire doors and windstorm applications Thru-bolted lever trim and strengthened cylinder retainer...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,316.00
    $702.72
    Subtotal:
  • LC-8241 LNE 26D Sargent Manufacturing Mortise Lock LC-8241 LNE 26D Sargent Manufacturing Mortise Lock
    Quick view

    LC-8241 LNE 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,618.00
    $859.56
    LC-8241 LNE 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: $1,618.00
    $859.56
    Subtotal:
  • LC-8248 LL 26D Sargent Manufacturing Mortise Lock LC-8248 LL 26D Sargent Manufacturing Mortise Lock
    Quick view

    LC-8248 LL 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,548.00
    $830.16
    LC-8248 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:
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