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 8800 Series JNCN8822FL Mortise Lock Trim Pack Yale 8800 Series JNCN8822FL Mortise Lock Trim Pack
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    Yale 8800 Series JNCN8822FL Mortise Lock Trim Pack

    Yale/Accentra
    MSRP: $1,014.00
    $573.14
    The Yale 8800 Series mortise lock trim pack delivers uncompromising strength and durability for commercial applications demanding long-life performance. Designed with quick lever handing and a field-reversible latchbolt, this ANSI/BHMA Grade 1 certified...
    Qty in Cart: 0
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    Price:
    MSRP: $1,014.00
    $573.14
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  • Yale 8800 Series MOR8862FL Mortise Lock Trim Pack Yale 8800 Series MOR8862FL Mortise Lock Trim Pack
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    Yale 8800 Series MOR8862FL Mortise Lock Trim Pack

    Yale/Accentra
    MSRP: $805.00
    $471.31
    The Yale 8800 Series mortise lock trim pack is engineered for commercial doors requiring ANSI/BHMA Grade 1 security and durability. This heavy-duty mortise lock features a reinforced stainless steel deadbolt, vandal-resistant trim, and field-reversible...
    Qty in Cart: 0
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    Price:
    MSRP: $805.00
    $471.31
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  • Yale 8800 Series PNR8833FL Mortise Lock Trim Pack Yale 8800 Series PNR8833FL Mortise Lock Trim Pack
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    Yale 8800 Series PNR8833FL Mortise Lock Trim Pack

    Yale/Accentra
    MSRP: $964.00
    $550.79
    The Yale 8800 Series mortise lock trim pack is a Grade 1 commercial-duty solution for businesses and building managers securing interior and perimeter doors. Field-reversible handing, reinforced stainless steel deadbolt, and vandal-resistant trim deliver...
    Qty in Cart: 0
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    MSRP: $964.00
    $550.79
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  • Yale 8800 Series MOR8865FL Mortise Lock Trim Pack 605 Yale 8800 Series MOR8865FL Mortise Lock Trim Pack 605
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    Yale 8800 Series MOR8865FL Mortise Lock Trim Pack 605

    Yale/Accentra
    MSRP: $805.00
    $471.31
    The Yale 8800 Series mortise lock is a Grade 1 rated commercial security solution for applications demanding durability and strength. Designed for doors 1-3/4" to 3-1/4" thick, this heavy-duty lock features a reinforced stainless steel deadbolt and...
    Qty in Cart: 0
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    Price:
    MSRP: $805.00
    $471.31
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  • Yale 8800 Series PNR8833FL Mortise Lock, Satin Chrome Yale 8800 Series PNR8833FL Mortise Lock, Satin Chrome
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    Yale 8800 Series PNR8833FL Mortise Lock, Satin Chrome

    Yale/Accentra
    MSRP: $1,342.00
    $721.42
    The Yale 8800 Series mortise lock (PNR8833FL) is a heavy-duty, ANSI/BHMA Grade 1 certified lock built for commercial doors in offices, retail, and institutional settings. Its reinforced stainless steel deadbolt and vandal-resistant trim deliver...
    Qty in Cart: 0
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    Price:
    MSRP: $1,342.00
    $721.42
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  • Yale 8800 Series MOR8830-2FL Mortise Lock, Satin Chrome Yale 8800 Series MOR8830-2FL Mortise Lock, Satin Chrome
    Quick view

    Yale 8800 Series MOR8830-2FL Mortise Lock, Satin Chrome

    Yale/Accentra
    MSRP: $1,302.00
    $704.81
    The Yale 8800 Series mortise lock delivers ANSI/BHMA Grade 1 security for commercial doors. Engineered with a reinforced stainless steel deadbolt and vandal-resistant trim, this lock handles high-traffic applications where strength and durability matter...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,302.00
    $704.81
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  • Yale 8800 Series PNCN8824FL Mortise Lock Trim Pack Yale 8800 Series PNCN8824FL Mortise Lock Trim Pack
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    Yale 8800 Series PNCN8824FL Mortise Lock Trim Pack

    Yale/Accentra
    MSRP: $987.00
    $561.48
    The Yale 8800 Series mortise lock trim pack is engineered for commercial doors requiring ANSI/BHMA Grade 1 security and durability. Features a reinforced stainless steel deadbolt, heavy-duty vandal-resistant trim, and field-reversible latchbolt design...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $987.00
    $561.48
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  • Yale 8862FL 625 Mortise Lock, Grade 1, Stainless Steel Yale 8862FL 625 Mortise Lock, Grade 1, Stainless Steel
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    Yale 8862FL 625 Mortise Lock, Grade 1, Stainless Steel

    Yale/Accentra
    MSRP: $1,087.00
    $592.74
    The Yale 8862FL 625 is a heavy-duty mortise lock engineered for commercial buildings, healthcare facilities, and high-traffic environments where security and durability are non-negotiable. This ANSI/BHMA Grade 1 certified lock features a reinforced...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,087.00
    $592.74
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  • Yale 8800 Series PNR8830-2FL Mortise Lock, Satin Chrome Yale 8800 Series PNR8830-2FL Mortise Lock, Satin Chrome
    Quick view

    Yale 8800 Series PNR8830-2FL Mortise Lock, Satin Chrome

    Yale/Accentra
    MSRP: $1,461.00
    $802.68
    The Yale 8800 Series mortise lock delivers commercial-grade security for high-traffic doors. Featuring a reinforced stainless steel deadbolt and ANSI/BHMA Grade 1 certification, it is built for offices, hospitals, schools and institutional buildings...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,461.00
    $802.68
    Subtotal:
  • Yale 8800 Series MOR8860FL 625 Mortise Lock Trim Pack Yale 8800 Series MOR8860FL 625 Mortise Lock Trim Pack
    Quick view

    Yale 8800 Series MOR8860FL 625 Mortise Lock Trim Pack

    Yale/Accentra
    MSRP: $805.00
    $471.31
    The Yale 8800 Series MOR8860FL mortise lock trim pack delivers ANSI/BHMA Grade 1 security for high-traffic commercial doors. Heavy-duty stainless steel construction with a reinforced deadbolt resists vandalism and forced entry, making it ideal for office...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $805.00
    $471.31
    Subtotal:
  • Yale 8800 Series PNR8834FL Mortise Lock, Satin Chrome Yale 8800 Series PNR8834FL Mortise Lock, Satin Chrome
    Quick view

    Yale 8800 Series PNR8834FL Mortise Lock, Satin Chrome

    Yale/Accentra
    MSRP: $1,342.00
    $721.42
    The Yale 8800 Series mortise lock delivers ANSI/BHMA Grade 1 security for commercial doors. Built with reinforced stainless steel deadbolts and heavy-duty, vandal-resistant trim, this lock is engineered for high-traffic entrances, storefronts, and...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,342.00
    $721.42
    Subtotal:
  • Yale 8800 Series MOR8860FL Mortise Lock Trim Pack Yale 8800 Series MOR8860FL Mortise Lock Trim Pack
    Quick view

    Yale 8800 Series MOR8860FL Mortise Lock Trim Pack

    Yale/Accentra
    MSRP: $805.00
    $471.31
    The Yale 8800 Series MOR8860FL is a Grade 1 mortise lock designed for high-security commercial applications requiring uncompromising strength and durability. Built with reinforced stainless steel components and heavy-duty vandal-resistant trim, it solves...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $805.00
    $471.31
    Subtotal:
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