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 CRR8824FL Mortise Lock, Grade 1 Yale 8800 CRR8824FL Mortise Lock, Grade 1
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    Yale 8800 CRR8824FL Mortise Lock, Grade 1

    Yale/Accentra
    MSRP: $1,183.00
    $653.55
    The Yale 8800 Series mortise lock delivers uncompromising strength and durability for commercial doors. Engineered for high-traffic applications, this ANSI/BHMA Grade 1 certified lock features a reinforced stainless steel deadbolt, heavy-duty...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,183.00
    $653.55
    Subtotal:
  • Yale 8800 Series MOR8835FL Mortise Lock Trim Pack Yale 8800 Series MOR8835FL Mortise Lock Trim Pack
    Quick view

    Yale 8800 Series MOR8835FL Mortise Lock Trim Pack

    Yale/Accentra
    MSRP: $805.00
    $471.31
    The Yale 8800 Series MOR8835FL is a Grade 1 mortise lock designed for high-security commercial applications requiring uncompromising strength and durability. This trim pack features a reinforced stainless steel deadbolt, heavy-duty vandal-resistant trim,...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $805.00
    $471.31
    Subtotal:
  • Yale 8800 Series AUCN8830-2FL Mortise Lock Trim Pack Yale 8800 Series AUCN8830-2FL Mortise Lock Trim Pack
    Quick view

    Yale 8800 Series AUCN8830-2FL Mortise Lock Trim Pack

    Yale/Accentra
    MSRP: $828.00
    $482.00
    The Yale 8800 Series mortise lock trim pack is a Grade 1 commercial-grade security solution for standard interior and exterior doors. Designed for uncompromising strength and durability, it features a reinforced stainless steel deadbolt, heavy-duty...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $828.00
    $482.00
    Subtotal:
  • Yale 8800 Series MOR8835FL Mortise Lock, Grade 1 Yale 8800 Series MOR8835FL Mortise Lock, Grade 1
    Quick view

    Yale 8800 Series MOR8835FL Mortise Lock, Grade 1

    Yale/Accentra
    MSRP: $1,085.00
    $591.79
    The Yale 8800 Series mortise lock is a heavy-duty commercial grade lock designed for doors requiring maximum security and durability. Built with a reinforced stainless steel deadbolt and vandal-resistant trim, it solves the challenge of securing...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,085.00
    $591.79
    Subtotal:
  • Yale 8800 Series JNCN8860FL 606 Mortise Lock Trim Pack Yale 8800 Series JNCN8860FL 606 Mortise Lock Trim Pack
    Quick view

    Yale 8800 Series JNCN8860FL 606 Mortise Lock Trim Pack

    Yale/Accentra
    MSRP: $1,014.00
    $573.14
    The Yale 8800 Series mortise lock trim pack is engineered for commercial doors requiring ANSI/BHMA Grade 1 certified security and durability. This heavy-duty lock features a reinforced stainless steel deadbolt, vandal-resistant trim, and field-reversible...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,014.00
    $573.14
    Subtotal:
  • Yale 8800 Series MOR8847FL Mortise Lock Trim Pack Yale 8800 Series MOR8847FL Mortise Lock Trim Pack
    Quick view

    Yale 8800 Series MOR8847FL Mortise Lock Trim Pack

    Yale/Accentra
    MSRP: $805.00
    $471.31
    The Yale 8800 Series mortise lock is engineered for demanding commercial applications requiring uncompromising strength and durability. This Grade 1 certified lock features a reinforced stainless steel deadbolt, heavy-duty vandal-resistant trim, and...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $805.00
    $471.31
    Subtotal:
  • Yale 8800 Series CRR8824FL Mortise Lock, Grade 1 Yale 8800 Series CRR8824FL Mortise Lock, Grade 1
    Quick view

    Yale 8800 Series CRR8824FL Mortise Lock, Grade 1

    Yale/Accentra
    MSRP: $1,183.00
    $653.55
    The Yale 8800 Series mortise lock is a heavy-duty commercial solution for interior and exterior doors requiring ANSI/BHMA Grade 1 security. Built with reinforced stainless steel deadbolts and vandal-resistant trim, it solves security concerns in...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,183.00
    $653.55
    Subtotal:
  • Yale 8847FL Mortise Lock Trim Pack, Grade 1, Satin Chrome Yale 8847FL Mortise Lock Trim Pack, Grade 1, Satin Chrome
    Quick view

    Yale 8847FL Mortise Lock Trim Pack, Grade 1, Satin Chrome

    Yale/Accentra
    MSRP: $805.00
    $471.31
    The Yale 8800 Series mortise lock trim pack delivers commercial-grade security for interior and entrance doors. Designed for uncompromising strength, this ANSI/BHMA Grade 1 certified lock features a reinforced stainless steel deadbolt, vandal-resistant...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $805.00
    $471.31
    Subtotal:
  • Yale 8800 Series MOR8833FL Mortise Lock Trim Pack Yale 8800 Series MOR8833FL Mortise Lock Trim Pack
    Quick view

    Yale 8800 Series MOR8833FL Mortise Lock Trim Pack

    Yale/Accentra
    MSRP: $805.00
    $471.31
    The Yale 8800 Series MOR8833FL mortise lock trim pack delivers commercial-grade security for interior and exterior doors. Designed for facilities managers and building owners who demand durability, this ANSI/BHMA Grade 1 certified lock features a...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $805.00
    $471.31
    Subtotal:
  • Yale 8800 MOR8835FL Mortise Lock, Grade 1, Satin Chrome Yale 8800 MOR8835FL Mortise Lock, Grade 1, Satin Chrome
    Quick view

    Yale 8800 MOR8835FL Mortise Lock, Grade 1, Satin Chrome

    Yale/Accentra
    MSRP: $1,085.00
    $591.79
    The Yale 8800 Series MOR8835FL mortise lock delivers commercial-grade security for medium to heavy-traffic doors. Engineered for uncompromising strength, this ANSI/BHMA Grade 1 certified lock features a reinforced stainless steel deadbolt, heavy-duty...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,085.00
    $591.79
    Subtotal:
  • Yale 8800 MOR8860FL Mortise Lock, Grade 1, Stainless Steel Yale 8800 MOR8860FL Mortise Lock, Grade 1, Stainless Steel
    Quick view

    Yale 8800 MOR8860FL Mortise Lock, Grade 1, Stainless Steel

    Yale/Accentra
    MSRP: $1,213.00
    $666.36
    The Yale 8800 Series MOR8860FL mortise lock delivers ANSI/BHMA Grade 1 security for commercial doors requiring uncompromising strength and durability. Its reinforced stainless steel deadbolt, heavy-duty vandal-resistant trim, and 3/4-inch throw latchbolt...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,213.00
    $666.36
    Subtotal:
  • Yale 8800 Series MOR8835FL Mortise Lock Trim Pack Yale 8800 Series MOR8835FL Mortise Lock Trim Pack
    Quick view

    Yale 8800 Series MOR8835FL Mortise Lock Trim Pack

    Yale/Accentra
    MSRP: $805.00
    $471.31
    The Yale 8800 Series mortise lock is a heavy-duty commercial solution for doors requiring ANSI/BHMA Grade 1 security and durability. Designed for institutional, commercial, and high-traffic applications, this reinforced stainless steel deadbolt resists...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $805.00
    $471.31
    Subtotal:
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