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 8216 LNB Mortise Lock, Grade 2, 26D Sargent 8216 LNB Mortise Lock, Grade 2, 26D
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    Sargent 8216 LNB Mortise Lock, Grade 2, 26D

    Sargent
    MSRP: $1,822.00
    $965.24
    The Sargent 8216 LNB is a heavy-duty mortise lock engineered for commercial and institutional doors where strength and security are paramount. 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: $1,822.00
    $965.24
    Subtotal:
  • Sargent 8237 LW1W 32D Mortise Lock, Grade 2 Sargent 8237 LW1W 32D Mortise Lock, Grade 2
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    Sargent 8237 LW1W 32D Mortise Lock, Grade 2

    Sargent
    MSRP: $929.00
    $510.18
    The Sargent 8237 is a heavy-duty mortise lock engineered for commercial and institutional doors requiring maximum security and durability. ANSI/BHMA Grade 2 certified and UL-listed for three-hour fire doors, it exceeds industry standards and resists...
    Qty in Cart: 0
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    MSRP: $929.00
    $510.18
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  • Sargent 8255 LW1J 26D Mortise Lock, Grade 2 Sargent 8255 LW1J 26D Mortise Lock, Grade 2
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    Sargent 8255 LW1J 26D Mortise Lock, Grade 2

    Sargent
    MSRP: $867.00
    $484.14
    The Sargent 8255 mortise lock delivers commercial-grade security for office buildings, hospitals, schools, and institutional facilities. This Grade 2 certified lock exceeds ANSI/BHMA A156.13 standards with thru-bolted lever trim, a strengthened cylinder...
    Qty in Cart: 0
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    Price:
    MSRP: $867.00
    $484.14
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  • Sargent 8200 26D Mortise Lock, Grade 2 Sargent 8200 26D Mortise Lock, Grade 2
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    Sargent 8200 26D Mortise Lock, Grade 2

    Sargent
    MSRP: $1,614.00
    $857.88
    The Sargent 8200 26D is a heavy-duty mortise lock engineered for institutional and commercial buildings requiring maximum security and durability. This Grade 2 certified lock exceeds ANSI/BHMA A156.13 standards and is UL-listed for three-hour fire doors...
    Qty in Cart: 0
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    Price:
    MSRP: $1,614.00
    $857.88
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  • 60-8204 OP 26D Sargent Mortise Lock 60-8204 OP 26D Sargent Mortise Lock
    Quick view

    60-8204 OP 26D Sargent Mortise Lock

    Sargent
    MSRP: $1,654.00
    $874.68
    The Sargent 8200 mortise lock delivers industrial-grade security for commercial doors in offices, hospitals, schools, and behavioral health facilities. This Grade 2 certified lock exceeds ANSI/BHMA A156.13 standards with thru-bolted lever trim,...
    Qty in Cart: 0
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    Price:
    MSRP: $1,654.00
    $874.68
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  • Sargent 8237 WTP 26D Mortise Lock, Grade 2 Sargent 8237 WTP 26D Mortise Lock, Grade 2
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    Sargent 8237 WTP 26D Mortise Lock, Grade 2

    Sargent
    MSRP: $813.00
    $461.46
    The Sargent 8237 WTP 26D is a heavy-duty mortise lock engineered for high-security commercial and institutional applications. Built to exceed ANSI/BHMA Grade 2 standards, it delivers superior strength and durability for offices, hospitals, schools, and...
    Qty in Cart: 0
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    MSRP: $813.00
    $461.46
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  • 60-8205 LE1F 32D Sargent Mortise Lock 60-8205 LE1F 32D Sargent Mortise Lock
    Quick view

    60-8205 LE1F 32D Sargent Mortise Lock

    Sargent
    MSRP: $1,806.00
    $958.52
    The Sargent 8200 mortise lock is a heavy-duty security solution for commercial doors in offices, hospitals, schools, and behavioral health facilities. It exceeds ANSI/BHMA Grade 1 standards and delivers superior strength, durability, and resistance to...
    Qty in Cart: 0
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    Price:
    MSRP: $1,806.00
    $958.52
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  • LC-8259 LNP 32D Sargent Manufacturing Mortise Lock LC-8259 LNP 32D Sargent Manufacturing Mortise Lock
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    LC-8259 LNP 32D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,554.00
    $832.68
    LC-8259 LNP 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
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    MSRP: $1,554.00
    $832.68
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  • LC-8259 LNL 32D Sargent Manufacturing Mortise Lock LC-8259 LNL 32D Sargent Manufacturing Mortise Lock
    Quick view

    LC-8259 LNL 32D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,554.00
    $832.68
    LC-8259 LNL 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: $1,554.00
    $832.68
    Subtotal:
  • 60-8225 LE1A 26D LH Sargent Mortise Lock 60-8225 LE1A 26D LH Sargent Mortise Lock
    Quick view

    60-8225 LE1A 26D LH Sargent Mortise Lock

    Sargent
    MSRP: $1,867.00
    $984.14
    The Sargent 8200 LE1A 26D LH mortise lock delivers institutional-grade security for commercial doors. Exceeding ANSI/BHMA Grade 1 standards, this heavy-duty lock suits offices, hospitals, schools, and behavioral health facilities requiring maximum...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,867.00
    $984.14
    Subtotal:
  • LC-8204 LNA 32D LH Sargent Manufacturing Mortise Lock LC-8204 LNA 32D LH Sargent Manufacturing Mortise Lock
    Quick view

    LC-8204 LNA 32D LH Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,577.00
    $842.34
    LC-8204 LNA 32D 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:
  • Sargent 8200 Mortise Lock 60-8205 LNF 10B Sargent 8200 Mortise Lock 60-8205 LNF 10B
    Quick view

    Sargent 8200 Mortise Lock 60-8205 LNF 10B

    Sargent
    MSRP: $1,723.00
    $923.66
    The Sargent 8200 mortise lock delivers commercial-grade security and durability for offices, hospitals, schools, and behavioral health facilities. This Grade 2 certified lock exceeds ANSI/BHMA A156.13 standards and is UL-cUL listed for three-hour fire...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,723.00
    $923.66
    Subtotal:
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