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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  • Yale 8864FL Mortise Lock, Grade 1, 626 Finish Yale 8864FL Mortise Lock, Grade 1, 626 Finish
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    Yale 8864FL Mortise Lock, Grade 1, 626 Finish

    Yale/Accentra
    MSRP: $1,266.00
    $688.20
    The Yale 8864FL is a commercial-grade mortise lock built for high-security applications in offices, hospitals, and institutional buildings. This ANSI/BHMA Grade 1 certified lock features a reinforced stainless steel deadbolt, vandal-resistant trim, and...
    Qty in Cart: 0
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    Price:
    MSRP: $1,266.00
    $688.20
    Subtotal:
  • Yale 8800 Series Mortise Lock Trim Pack MOCN8802FL 626 Yale 8800 Series Mortise Lock Trim Pack MOCN8802FL 626
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    Yale 8800 Series Mortise Lock Trim Pack MOCN8802FL 626

    Yale/Accentra
    MSRP: $801.00
    $470.33
    The Yale 8800 Series Mortise Lock Trim Pack is a heavy-duty commercial mortise lock designed for applications requiring ANSI/BHMA Grade 1 strength and security. Built with a reinforced stainless steel deadbolt and vandal-resistant trim, this lock solves...
    Qty in Cart: 0
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    Price:
    MSRP: $801.00
    $470.33
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  • Yale 8860 Mortise Lock, 626 Finish, Grade 1 Yale 8860 Mortise Lock, 626 Finish, Grade 1
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    Yale 8860 Mortise Lock, 626 Finish, Grade 1

    Yale/Accentra
    MSRP: $1,067.00
    $583.72
    The Yale 8860 is a heavy-duty mortise lock designed for commercial doors requiring ANSI/BHMA Grade 1 security and durability. Built with a reinforced stainless steel deadbolt and vandal-resistant trim, it handles high-traffic applications in offices,...
    Qty in Cart: 0
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    Price:
    MSRP: $1,067.00
    $583.72
    Subtotal:
  • Yale 8800 JNR8824FL Mortise Lock, 2-3/4" Backset, Satin Chrome Yale 8800 JNR8824FL Mortise Lock, 2-3/4" Backset, Satin Chrome
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    Yale 8800 JNR8824FL Mortise Lock, 2-3/4" Backset, Satin Chrome

    Yale/Accentra
    MSRP: $1,342.00
    $721.42
    The Yale 8800 Series JNR8824FL is a heavy-duty mortise lock built for demanding commercial applications where strength and security cannot be compromised. This Grade 1 certified lock features a reinforced stainless steel deadbolt, vandal-resistant trim,...
    Qty in Cart: 0
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    Price:
    MSRP: $1,342.00
    $721.42
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  • Yale 8800 Series JNR8817-2FL Mortise Lock Trim Pack Yale 8800 Series JNR8817-2FL Mortise Lock Trim Pack
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    Yale 8800 Series JNR8817-2FL Mortise Lock Trim Pack

    Yale/Accentra
    MSRP: $964.00
    $550.79
    The Yale 8800 Series mortise lock is a Grade 1 commercial-duty solution for applications demanding maximum strength and security. Designed for doors up to 3.25 inches thick, it features a reinforced stainless steel deadbolt, vandal-resistant trim, and...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $964.00
    $550.79
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  • Yale 8800 Series MOR8834FL Mortise Lock, Satin Chrome Yale 8800 Series MOR8834FL Mortise Lock, Satin Chrome
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    Yale 8800 Series MOR8834FL Mortise Lock, Satin Chrome

    Yale/Accentra
    MSRP: $1,156.00
    $622.16
    The Yale 8800 Series mortise lock is a heavy-duty commercial lock for interior and exterior doors requiring ANSI/BHMA Grade 1 security and durability. It solves the need for vandal-resistant, reliable access control in high-traffic commercial...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,156.00
    $622.16
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  • Yale 8800 Series JNR8860-2FL Mortise Lock Trim Pack Yale 8800 Series JNR8860-2FL Mortise Lock Trim Pack
    Quick view

    Yale 8800 Series JNR8860-2FL Mortise Lock Trim Pack

    Yale/Accentra
    MSRP: $964.00
    $550.79
    The Yale 8800 Series mortise lock is a heavy-duty commercial-grade solution for applications requiring maximum strength and security. Featuring a reinforced stainless steel deadbolt, vandal-resistant trim, and ANSI/BHMA Grade 1 certification, this lock...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $964.00
    $550.79
    Subtotal:
  • Yale Accentra 8867FL 626 Mortise Lock, Grade 1 Yale Accentra 8867FL 626 Mortise Lock, Grade 1
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    Yale Accentra 8867FL 626 Mortise Lock, Grade 1

    Yale/Accentra
    MSRP: $1,209.00
    $665.42
    The Yale Accentra 8867FL mortise lock is a commercial-grade locking mechanism built for high-traffic doors in offices, schools, and institutional buildings. Its reinforced stainless steel deadbolt, vandal-resistant trim, and ANSI/BHMA Grade 1...
    Qty in Cart: 0
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    Price:
    MSRP: $1,209.00
    $665.42
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  • Yale 8800 Series JNR8860-2FL Mortise Lock, Satin Chrome Yale 8800 Series JNR8860-2FL Mortise Lock, Satin Chrome
    Quick view

    Yale 8800 Series JNR8860-2FL Mortise Lock, Satin Chrome

    Yale/Accentra
    MSRP: $1,491.00
    $815.49
    The Yale 8800 Series JNR8860-2FL is a commercial-grade mortise lock engineered for high-security applications demanding durability and strength. Ideal for office buildings, schools, and institutional facilities, this lock combines a reinforced stainless...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,491.00
    $815.49
    Subtotal:
  • Yale 8833FL Mortise Lock, Grade 1, Satin Chrome Yale 8833FL Mortise Lock, Grade 1, Satin Chrome
    Quick view

    Yale 8833FL Mortise Lock, Grade 1, Satin Chrome

    Yale/Accentra
    MSRP: $1,156.00
    $622.16
    The Yale 8833FL is a commercial-grade mortise lock built for high-traffic doors in offices, hotels, and institutional buildings. Its reinforced stainless steel deadbolt, ANSI/BHMA Grade 1 certification, and heavy-duty vandal-resistant trim deliver...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,156.00
    $622.16
    Subtotal:
  • Yale 8800 Series JNR8832FL Mortise Lock Trim Pack Yale 8800 Series JNR8832FL Mortise Lock Trim Pack
    Quick view

    Yale 8800 Series JNR8832FL Mortise Lock Trim Pack

    Yale/Accentra
    MSRP: $964.00
    $550.79
    The Yale 8800 Series mortise lock trim pack delivers ANSI/BHMA Grade 1 security for commercial doors. Built with reinforced stainless steel components and vandal-resistant trim, it solves the need for durable, reliable access control in high-traffic...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $964.00
    $550.79
    Subtotal:
  • Yale 8833FL 626 Mortise Lock Trim Pack Yale 8833FL 626 Mortise Lock Trim Pack
    Quick view

    Yale 8833FL 626 Mortise Lock Trim Pack

    Yale/Accentra
    MSRP: $778.00
    $459.64
    The Yale 8800 Series mortise lock combines commercial-grade security with field-reversible installation for offices, hotels, hospitals, and institutional buildings. Its reinforced stainless steel deadbolt, heavy-duty vandal-resistant trim, and ANSI/BHMA...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $778.00
    $459.64
    Subtotal:
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