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 8200 26D RH Mortise Lock Sargent 8200 26D RH Mortise Lock
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    Sargent 8200 26D RH Mortise Lock

    Sargent
    MSRP: $1,910.00
    $1,082.20
    The Sargent 8200 is a heavy-duty mortise lock built for commercial doors requiring maximum security and durability. Grade 2 certified and exceeding ANSI/BHMA A156.13 standards, it serves offices, hospitals, schools, and behavioral health facilities where...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,910.00
    $1,082.20
    Subtotal:
  • Sargent 8200 LE1L 26D Mortise Lock Sargent 8200 LE1L 26D Mortise Lock
    Quick view

    Sargent 8200 LE1L 26D Mortise Lock

    Sargent
    MSRP: $1,867.00
    $984.14
    The Sargent 8200 LE1L 26D is a Grade 1 mortise lock engineered for maximum security and durability in high-traffic commercial environments. Built for offices, hospitals, schools, and behavioral health facilities, it exceeds ANSI/BHMA A156.13 standards...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,867.00
    $984.14
    Subtotal:
  • LC-8237 EE 10B Sargent Manufacturing Mortise Lock LC-8237 EE 10B Sargent Manufacturing Mortise Lock
    Quick view

    LC-8237 EE 10B Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,577.00
    $842.34
    LC-8237 EE 10B 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: $1,577.00
    $842.34
    Subtotal:
  • Sargent 8200 Mortise Lock 26D Grade 2 Sargent 8200 Mortise Lock 26D Grade 2
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    Sargent 8200 Mortise Lock 26D Grade 2

    Sargent
    MSRP: $1,519.00
    $817.98
    The Sargent 8200 mortise lock is a heavy-duty Grade 2 certified lock designed for commercial and institutional buildings requiring maximum security and durability. It exceeds ANSI/BHMA A156.13 standards and is UL-cUL listed for three-hour fire doors and...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,519.00
    $817.98
    Subtotal:
  • LC-8237 EA 10B LH Sargent Manufacturing Mortise Lock LC-8237 EA 10B LH Sargent Manufacturing Mortise Lock
    Quick view

    LC-8237 EA 10B LH Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,577.00
    $842.34
    LC-8237 EA 10B LH 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...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,577.00
    $842.34
    Subtotal:
  • Sargent 8200 LW1L 26D Mortise Lock Sargent 8200 LW1L 26D Mortise Lock
    Quick view

    Sargent 8200 LW1L 26D Mortise Lock

    Sargent
    MSRP: $1,706.00
    $916.52
    The Sargent 8200 LW1L 26D is a heavy-duty mortise lock exceeding ANSI/BHMA Grade 1 standards, built for high-security commercial and institutional applications. Ideal for offices, hospitals, schools, and behavioral health facilities, it delivers maximum...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,706.00
    $916.52
    Subtotal:
  • LC-8237 EA 10B RH Sargent Manufacturing Mortise Lock LC-8237 EA 10B RH Sargent Manufacturing Mortise Lock
    Quick view

    LC-8237 EA 10B RH Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,577.00
    $842.34
    LC-8237 EA 10B RH 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...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,577.00
    $842.34
    Subtotal:
  • Sargent 8200 LE1A Mortise Lock 26D Left Hand Sargent 8200 LE1A Mortise Lock 26D Left Hand
    Quick view

    Sargent 8200 LE1A Mortise Lock 26D Left Hand

    Sargent
    MSRP: $1,867.00
    $984.14
    The Sargent 8200 LE1A is a heavy-duty mortise lock built for high-security commercial and institutional applications. Exceeding ANSI/BHMA Grade 2 standards and UL-listed for three-hour fire doors, it delivers proven strength and reliability in offices,...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,867.00
    $984.14
    Subtotal:
  • LC-8237 EL 10B Sargent Manufacturing Mortise Lock LC-8237 EL 10B Sargent Manufacturing Mortise Lock
    Quick view

    LC-8237 EL 10B Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,532.00
    $823.44
    LC-8237 EL 10B 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: $1,532.00
    $823.44
    Subtotal:
  • Sargent 8200 LNA 26D RH Mortise Lock Sargent 8200 LNA 26D RH Mortise Lock
    Quick view

    Sargent 8200 LNA 26D RH Mortise Lock

    Sargent
    MSRP: $1,792.00
    $952.64
    The Sargent 8200 LNA 26D RH is a heavy-duty mortise lock designed for commercial buildings, hospitals, schools, and offices requiring maximum security and durability. It exceeds ANSI/BHMA A156.13 Grade 1 standards and is UL-cUL listed for three-hour fire...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,792.00
    $952.64
    Subtotal:
  • Sargent 8200 26D Mortise Lock, Grade 1 Security Sargent 8200 26D Mortise Lock, Grade 1 Security
    Quick view

    Sargent 8200 26D Mortise Lock, Grade 1 Security

    Sargent
    MSRP: $1,699.00
    $913.58
    The Sargent 8200 mortise lock delivers industrial-grade security for high-traffic commercial and institutional doors. Built to exceed ANSI/BHMA Grade 1 standards, this heavy-duty lock resists unauthorized entry and vandalism, making it ideal for offices,...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,699.00
    $913.58
    Subtotal:
  • 8215 LNW 10B Sargent Manufacturing Mortise Lock 8215 LNW 10B Sargent Manufacturing Mortise Lock
    Quick view

    8215 LNW 10B Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,388.00
    $732.96
    8215 LNW 10B Sargent Manufacturing Mortise LockFeatures: ANSI/BHMA Grade 2 certified for cycle and strength requirements UL-cUL listed for three-hour fire doors and windstorm applications Thru-bolted lever trim and strengthened cylinder retainer...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,388.00
    $732.96
    Subtotal:
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