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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  • 70-8205 LW1F 26D Sargent Mortise Lock 70-8205 LW1F 26D Sargent Mortise Lock
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    70-8205 LW1F 26D Sargent Mortise Lock

    Sargent
    MSRP: $1,706.00
    $916.52
    The Sargent 8200 mortise lock is a heavy-duty access control solution for commercial buildings, hospitals, schools, and secure facilities. It exceeds ANSI/BHMA Grade 2 standards and is UL-cUL listed for three-hour fire doors and windstorm applications,...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,706.00
    $916.52
    Subtotal:
  • 8266 LNP 26D Sargent Manufacturing Mortise Lock 8266 LNP 26D Sargent Manufacturing Mortise Lock
    Quick view

    8266 LNP 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,615.00
    $858.30
    8266 LNP 26D 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: $1,615.00
    $858.30
    Subtotal:
  • 8265 LSL 26D Sargent Manufacturing Mortise Lock 8265 LSL 26D Sargent Manufacturing Mortise Lock
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    8265 LSL 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $2,563.00
    $1,476.46
    8265 LSL 26D 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
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    Price:
    MSRP: $2,563.00
    $1,476.46
    Subtotal:
  • Sargent 8200 LE1A 26D LH Mortise Lock Sargent 8200 LE1A 26D LH Mortise Lock
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    Sargent 8200 LE1A 26D LH Mortise Lock

    Sargent
    MSRP: $1,867.00
    $984.14
    The Sargent 8200 LE1A is a Grade 2 mortise lock built for high-security commercial and institutional applications. Exceeding ANSI/BHMA A156.13 standards, it delivers maximum strength and durability for offices, hospitals, schools, and behavioral health...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,867.00
    $984.14
    Subtotal:
  • Sargent 8267 LNA 26D RH Mortise Lock Sargent 8267 LNA 26D RH Mortise Lock
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    Sargent 8267 LNA 26D RH Mortise Lock

    Sargent
    MSRP: $1,767.00
    $942.14
    The Sargent 8267 is a heavy-duty mortise lock built for commercial and institutional doors requiring Grade 1 security and fire-rated performance. Designed for offices, hospitals, schools, and behavioral health facilities, this lock exceeds ANSI/BHMA A156...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,767.00
    $942.14
    Subtotal:
  • Sargent 8200 26D Mortise Lock Sargent 8200 26D Mortise Lock
    Quick view

    Sargent 8200 26D Mortise Lock

    Sargent
    MSRP: $1,873.00
    $986.66
    The Sargent 8200 mortise lock delivers Grade 1 strength and exceeds ANSI/BHMA A156.13 Series 1000 standards, making it the industry's most durable mortise lock. Ideal for hospitals, schools, offices, and behavioral health facilities, it provides maximum...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,873.00
    $986.66
    Subtotal:
  • LC-8255 LNA 26D LH Sargent Manufacturing Mortise Lock LC-8255 LNA 26D LH Sargent Manufacturing Mortise Lock
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    LC-8255 LNA 26D LH Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,553.00
    $832.26
    LC-8255 LNA 26D 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: $1,553.00
    $832.26
    Subtotal:
  • Sargent 8267 LW1B 26D Mortise Lock Sargent 8267 LW1B 26D Mortise Lock
    Quick view

    Sargent 8267 LW1B 26D Mortise Lock

    Sargent
    MSRP: $1,745.00
    $932.90
    The Sargent 8267 LW1B 26D is a heavy-duty mortise lock built for institutional and commercial facilities demanding maximum security and durability. Exceeding ANSI/BHMA Grade 1 standards, it resists forced entry, vandalism, and abuse in high-traffic...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,745.00
    $932.90
    Subtotal:
  • 8266 LNL 26D Sargent Manufacturing Mortise Lock 8266 LNL 26D Sargent Manufacturing Mortise Lock
    Quick view

    8266 LNL 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,615.00
    $858.30
    8266 LNL 26D 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: $1,615.00
    $858.30
    Subtotal:
  • Sargent 8290 LNW 26D Mortise Lock, Grade 2 Sargent 8290 LNW 26D Mortise Lock, Grade 2
    Quick view

    Sargent 8290 LNW 26D Mortise Lock, Grade 2

    Sargent
    MSRP: $1,873.00
    $986.66
    The Sargent 8290 LNW 26D is a heavy-duty mortise lock built for commercial doors in offices, schools, hospitals, and behavioral health facilities. It exceeds ANSI/BHMA Grade 2 standards for strength and durability, offering UL-listed fire-door and...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,873.00
    $986.66
    Subtotal:
  • Sargent 8290 LNA 26D LH Mortise Lock Sargent 8290 LNA 26D LH Mortise Lock
    Quick view

    Sargent 8290 LNA 26D LH Mortise Lock

    Sargent
    MSRP: $1,873.00
    $986.66
    The Sargent 8290 LNA is a Grade 2 mortise lock engineered for high-security commercial and institutional applications. Exceeding ANSI/BHMA A156.13 standards, it delivers strength and durability for offices, hospitals, schools, and behavioral health...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,873.00
    $986.66
    Subtotal:
  • LC-8251 LNA 26D RH Sargent Manufacturing Mortise Lock LC-8251 LNA 26D RH Sargent Manufacturing Mortise Lock
    Quick view

    LC-8251 LNA 26D RH Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,646.00
    $871.32
    LC-8251 LNA 26D 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: $1,646.00
    $871.32
    Subtotal:
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