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 8205 LP 26D Mortise Lock, Grade 2 Sargent 8205 LP 26D Mortise Lock, Grade 2
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    Sargent 8205 LP 26D Mortise Lock, Grade 2

    Sargent
    MSRP: $1,654.00
    $874.68
    The Sargent 8205 LP 26D is a heavy-duty mortise lock engineered for commercial and institutional buildings requiring maximum security and durability. Built to ANSI/BHMA Grade 2 standards and UL-listed for three-hour fire doors, it delivers superior...
    Qty in Cart: 0
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    Price:
    MSRP: $1,654.00
    $874.68
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  • LC-8204 LNF 32D Sargent Manufacturing Mortise Lock LC-8204 LNF 32D Sargent Manufacturing Mortise Lock
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    LC-8204 LNF 32D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,577.00
    $842.34
    LC-8204 LNF 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: $1,577.00
    $842.34
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  • Sargent 8200 LNA 26D LH Mortise Lock Sargent 8200 LNA 26D LH Mortise Lock
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    Sargent 8200 LNA 26D LH Mortise Lock

    Sargent
    MSRP: $1,699.00
    $913.58
    The Sargent 8200 LNA mortise lock delivers Grade 1 security and durability for institutional and commercial doors. Built with high-quality components and thru-bolted construction, it exceeds ANSI/BHMA A156.13 standards and is UL-listed for three-hour...
    Qty in Cart: 0
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    Price:
    MSRP: $1,699.00
    $913.58
    Subtotal:
  • Sargent 8237 WTL 32D Mortise Lock, Grade 2 Sargent 8237 WTL 32D Mortise Lock, Grade 2
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    Sargent 8237 WTL 32D Mortise Lock, Grade 2

    Sargent
    MSRP: $929.00
    $510.18
    The Sargent 8237 WTL 32D is a heavy-duty mortise lock designed for commercial and institutional buildings requiring maximum security and durability. Built to exceed ANSI/BHMA Grade 2 standards, it delivers superior strength for high-traffic entrances,...
    Qty in Cart: 0
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    MSRP: $929.00
    $510.18
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  • Sargent 8245 LJ 26D Mortise Lock, Grade 2 Sargent 8245 LJ 26D Mortise Lock, Grade 2
    Quick view

    Sargent 8245 LJ 26D Mortise Lock, Grade 2

    Sargent
    MSRP: $628.00
    $369.26
    The Sargent 8245 LJ 26D is a heavy-duty mortise lock engineered for commercial buildings, hospitals, schools, and offices. It exceeds ANSI/BHMA Grade 2 standards and is UL-cUL listed for three-hour fire doors and windstorm applications. This lock...
    Qty in Cart: 0
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    MSRP: $628.00
    $369.26
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  • Sargent 8205 LNA 26D RH Mortise Lock Sargent 8205 LNA 26D RH Mortise Lock
    Quick view

    Sargent 8205 LNA 26D RH Mortise Lock

    Sargent
    MSRP: $1,699.00
    $913.58
    The Sargent 8205 LNA mortise lock delivers Grade 1 strength and durability for high-security commercial applications. Designed for offices, hospitals, schools, and behavioral health environments, it exceeds ANSI/BHMA A156.13 standards and resists...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,699.00
    $913.58
    Subtotal:
  • Sargent 8200 26D Mortise Lock, ANSI Grade 2 Sargent 8200 26D Mortise Lock, ANSI Grade 2
    Quick view

    Sargent 8200 26D Mortise Lock, ANSI Grade 2

    Sargent
    MSRP: $1,654.00
    $980.72
    The Sargent 8200 mortise lock delivers Grade 2 certified security for commercial doors in offices, hospitals, schools, and behavioral health facilities. This heavy-duty mortise 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
    $980.72
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  • Sargent 8200 TR-8243 LNF 26D Mortise Lock Sargent 8200 TR-8243 LNF 26D Mortise Lock
    Quick view

    Sargent 8200 TR-8243 LNF 26D Mortise Lock

    Sargent
    MSRP: $982.00
    $542.44
    The Sargent 8200 TR-8243 LNF 26D is a heavy-duty mortise lock engineered for institutional and commercial buildings requiring maximum security and durability. It exceeds ANSI/BHMA Grade 2 standards and is UL-cUL listed for three-hour fire doors, making...
    Qty in Cart: 0
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    Price:
    MSRP: $982.00
    $542.44
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  • Sargent 8226 LNP 26D Mortise Lock, Grade 2 Sargent 8226 LNP 26D Mortise Lock, Grade 2
    Quick view

    Sargent 8226 LNP 26D Mortise Lock, Grade 2

    Sargent
    MSRP: $1,840.00
    $972.80
    The Sargent 8226 LNP 26D is a heavy-duty mortise lock built for high-security commercial applications. Exceeding ANSI/BHMA Grade 2 standards, this lock delivers superior strength and durability for office buildings, hospitals, schools, and behavioral...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,840.00
    $972.80
    Subtotal:
  • LC-8247 LNF 26D Sargent Manufacturing Mortise Lock LC-8247 LNF 26D Sargent Manufacturing Mortise Lock
    Quick view

    LC-8247 LNF 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,646.00
    $871.32
    LC-8247 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
    Subtotal:
  • LC-8246 LNE 26D Sargent Manufacturing Mortise Lock LC-8246 LNE 26D Sargent Manufacturing Mortise Lock
    Quick view

    LC-8246 LNE 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,618.00
    $859.56
    LC-8246 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:
  • Sargent 8215 LE2L 26D Mortise Lock Sargent 8215 LE2L 26D Mortise Lock
    Quick view

    Sargent 8215 LE2L 26D Mortise Lock

    Sargent
    MSRP: $989.00
    $560.89
    The Sargent 8215 LE2L 26D is a heavy-duty mortise lock exceeding ANSI/BHMA Grade 1 standards, designed for institutional and commercial doors requiring maximum security and durability. Built for offices, hospitals, schools, and behavioral health...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $989.00
    $560.89
    Subtotal:
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