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 8252 LW 26D Mortise Lock, Grade 2 Sargent 8252 LW 26D Mortise Lock, Grade 2
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    Sargent 8252 LW 26D Mortise Lock, Grade 2

    Sargent
    MSRP: $1,910.00
    $1,082.20
    The Sargent 8252 LW 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, delivering...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,910.00
    $1,082.20
    Subtotal:
  • Sargent 8246 LNE 26D Mortise Lock Sargent 8246 LNE 26D Mortise Lock
    Quick view

    Sargent 8246 LNE 26D Mortise Lock

    Sargent
    MSRP: $1,910.00
    $1,082.20
    The Sargent 8246 LNE 26D is a heavy-duty mortise lock engineered for commercial and institutional buildings requiring maximum security and durability. Exceeding ANSI/BHMA Grade 1 standards, it's ideal for high-traffic offices, hospitals, schools, and...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,910.00
    $1,082.20
    Subtotal:
  • Sargent 8200 LNE 26D Mortise Lock, Grade 2 Sargent 8200 LNE 26D Mortise Lock, Grade 2
    Quick view

    Sargent 8200 LNE 26D Mortise Lock, Grade 2

    Sargent
    MSRP: $1,910.00
    $1,082.20
    The Sargent 8200 LNE 26D is a heavy-duty mortise lock engineered for commercial and institutional buildings requiring maximum security and durability. Exceeding ANSI/BHMA Grade 2 standards, it resists forced entry and vandalism, making it ideal for...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,910.00
    $1,082.20
    Subtotal:
  • Sargent 8200 LNE 26D Mortise Lock Sargent 8200 LNE 26D Mortise Lock
    Quick view

    Sargent 8200 LNE 26D Mortise Lock

    Sargent
    MSRP: $1,792.00
    $952.64
    The Sargent 8200 LNE 26D is a commercial-grade mortise lock engineered for high-security applications in offices, hospitals, schools, and behavioral health facilities. It exceeds ANSI/BHMA Grade 1 standards and delivers unmatched durability, vandal...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,792.00
    $952.64
    Subtotal:
  • 70-8248 OP 26D Sargent Mortise Lock 70-8248 OP 26D Sargent Mortise Lock
    Quick view

    70-8248 OP 26D Sargent Mortise Lock

    Sargent
    MSRP: $1,840.00
    $972.80
    The Sargent 8200 mortise lock is a commercial-grade security solution for offices, hospitals, schools, and behavioral health facilities. Exceeding ANSI/BHMA Grade 1 standards, it delivers superior strength and durability against forced entry and...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,840.00
    $972.80
    Subtotal:
  • 70-8224 LE1J 26D Sargent Mortise Lock 70-8224 LE1J 26D Sargent Mortise Lock
    Quick view

    70-8224 LE1J 26D Sargent Mortise Lock

    Sargent
    MSRP: $1,867.00
    $984.14
    The Sargent 8200 mortise lock is a commercial-grade security solution for offices, hospitals, schools, and behavioral health facilities. Exceeding ANSI/BHMA Grade 1 standards, it delivers superior strength and durability with high-quality components,...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,867.00
    $984.14
    Subtotal:
  • 70-8226 LW 26D Sargent Mortise Lock 70-8226 LW 26D Sargent Mortise Lock
    Quick view

    70-8226 LW 26D Sargent Mortise Lock

    Sargent
    MSRP: $1,910.00
    $1,082.20
    The Sargent 8200 mortise lock delivers institutional-grade security for commercial doors in offices, hospitals, schools, and behavioral health facilities. This ANSI/BHMA Grade 2 certified lock exceeds industry durability standards and resists...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,910.00
    $1,082.20
    Subtotal:
  • Sargent 8200 26D Mortise Lock Sargent 8200 26D Mortise Lock
    Quick view

    Sargent 8200 26D Mortise Lock

    Sargent
    MSRP: $1,910.00
    $1,082.20
    The Sargent 8200 26D is a heavy-duty mortise lock engineered for maximum security and durability in commercial and institutional settings. ANSI/BHMA Grade 2 certified and UL-listed for three-hour fire doors, it exceeds industry standards for strength...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,910.00
    $1,082.20
    Subtotal:
  • 70-8226 LB 26D Sargent Mortise Lock 70-8226 LB 26D Sargent Mortise Lock
    Quick view

    70-8226 LB 26D Sargent Mortise Lock

    Sargent
    MSRP: $1,840.00
    $972.80
    The Sargent 8200 mortise lock is a heavy-duty access control solution for commercial facilities, hospitals, schools, and offices requiring maximum security and durability. It exceeds ANSI/BHMA Grade 1 standards and is UL-listed for three-hour fire doors,...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,840.00
    $972.80
    Subtotal:
  • Sargent 8246 LNB 26D Mortise Lock Sargent 8246 LNB 26D Mortise Lock
    Quick view

    Sargent 8246 LNB 26D Mortise Lock

    Sargent
    MSRP: $1,840.00
    $972.80
    The Sargent 8246 LNB 26D is a Grade 2 mortise lock engineered for maximum security and durability in commercial buildings. It exceeds ANSI/BHMA A156.13 standards and is UL-listed for three-hour fire doors and windstorm applications, making it ideal for...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,840.00
    $972.80
    Subtotal:
  • 70-8225 WTJ 26D Sargent Mortise Lock 70-8225 WTJ 26D Sargent Mortise Lock
    Quick view

    70-8225 WTJ 26D Sargent Mortise Lock

    Sargent
    MSRP: $1,686.00
    $908.12
    The Sargent 70-8225 WTJ 26D is a high-security mortise lock engineered for commercial facilities, hospitals, schools, and offices demanding maximum durability. It exceeds ANSI/BHMA Grade 1 standards and delivers superior resistance to wear, unauthorized...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,686.00
    $908.12
    Subtotal:
  • Sargent 8245 LL Mortise Lock, 26D Finish Sargent 8245 LL Mortise Lock, 26D Finish
    Quick view

    Sargent 8245 LL Mortise Lock, 26D Finish

    Sargent
    MSRP: $1,733.00
    $927.86
    The Sargent 8245 LL is a Grade 2 mortise lock engineered for maximum security and durability in commercial and institutional facilities. Built to exceed ANSI/BHMA A156.13 standards, it suits offices, hospitals, schools, and behavioral health environments...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,733.00
    $927.86
    Subtotal:
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