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: $1,699.00
    $913.58
    The Sargent 8200 is a heavy-duty mortise lock engineered for maximum security and durability in commercial and institutional facilities. Exceeding ANSI/BHMA A156.13 Grade 1 standards, it delivers superior strength for offices, hospitals, schools, and...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,699.00
    $913.58
    Subtotal:
  • Sargent 8251 WTL 26D Mortise Lock Sargent 8251 WTL 26D Mortise Lock
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    Sargent 8251 WTL 26D Mortise Lock

    Sargent
    MSRP: $1,686.00
    $908.12
    The Sargent 8251 WTL 26D is a heavy-duty mortise lock built for commercial and institutional facilities demanding maximum security and durability. Exceeding ANSI/BHMA Grade 1 standards, it suits offices, hospitals, schools, and behavioral health...
    Qty in Cart: 0
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    Price:
    MSRP: $1,686.00
    $908.12
    Subtotal:
  • Sargent 8200 26D Mortise Lock, Grade 2, Fire-Rated Sargent 8200 26D Mortise Lock, Grade 2, Fire-Rated
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    Sargent 8200 26D Mortise Lock, Grade 2, Fire-Rated

    Sargent
    MSRP: $1,439.00
    $784.38
    The Sargent 8200 mortise lock delivers commercial-grade security for high-traffic facilities, hospitals, schools, and offices. Exceeding ANSI/BHMA Grade 2 standards, this UL-listed lock resists vandalism and unauthorized entry while supporting 58...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,439.00
    $784.38
    Subtotal:
  • Sargent 8240 OA Mortise Lock 26D RH Sargent 8240 OA Mortise Lock 26D RH
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    Sargent 8240 OA Mortise Lock 26D RH

    Sargent
    MSRP: $1,910.00
    $1,082.20
    The Sargent 8240 OA is a commercial-grade mortise lock engineered for maximum security and durability in high-traffic facilities. Exceeding ANSI/BHMA Grade 1 standards, it suits offices, hospitals, schools, and behavioral health environments where...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,910.00
    $1,082.20
    Subtotal:
  • 70-8217 LB 26D Sargent Mortise Lock 70-8217 LB 26D Sargent Mortise Lock
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    70-8217 LB 26D Sargent Mortise Lock

    Sargent
    MSRP: $1,822.00
    $965.24
    The Sargent 70-8217 LB 26D is a heavy-duty mortise lock engineered for maximum security and durability in commercial and institutional applications. Built to exceed ANSI/BHMA Grade 1 standards, it delivers superior strength for offices, hospitals,...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,822.00
    $965.24
    Subtotal:
  • 70-8240 LNA 26D RH Sargent Mortise Lock 70-8240 LNA 26D RH Sargent Mortise Lock
    Quick view

    70-8240 LNA 26D RH Sargent Mortise Lock

    Sargent
    MSRP: $1,910.00
    $1,082.20
    The Sargent 70-8240 LNA 26D RH mortise lock delivers Grade 2 certified strength and security for commercial doors in offices, hospitals, schools, and behavioral health facilities. This heavy-duty mortise lock exceeds ANSI/BHMA A156.13 standards and is...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,910.00
    $1,082.20
    Subtotal:
  • Sargent 8200 26D Mortise Lock, Grade 2 UL-Listed Sargent 8200 26D Mortise Lock, Grade 2 UL-Listed
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    Sargent 8200 26D Mortise Lock, Grade 2 UL-Listed

    Sargent
    MSRP: $1,743.00
    $932.06
    The Sargent 8200 mortise lock delivers industrial-grade security for commercial doors, hospitals, schools, and behavioral health facilities. This ANSI/BHMA Grade 2 certified lock exceeds standard durability requirements and resists unauthorized entry and...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,743.00
    $932.06
    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 Grade 2 certified mortise lock engineered for maximum security and durability in commercial and institutional applications. It exceeds ANSI/BHMA A156.13 standards and is UL-listed for three-hour fire doors and windstorm use,...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,910.00
    $1,082.20
    Subtotal:
  • Sargent 8200 26D Mortise Lock, Grade 2 Sargent 8200 26D Mortise Lock, Grade 2
    Quick view

    Sargent 8200 26D Mortise Lock, Grade 2

    Sargent
    MSRP: $1,699.00
    $913.58
    The Sargent 8200 mortise lock delivers industrial-grade security for commercial doors in offices, hospitals, schools, and behavioral health facilities. This Grade 2 certified lock exceeds ANSI/BHMA A156.13 standards and is UL-listed for three-hour fire...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,699.00
    $913.58
    Subtotal:
  • 8265 LB 26D Sargent Manufacturing Mortise Lock 8265 LB 26D Sargent Manufacturing Mortise Lock
    Quick view

    8265 LB 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,476.00
    $799.92
    8265 LB 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: $1,476.00
    $799.92
    Subtotal:
  • Sargent 8290 LNE 26D Mortise Lock, Grade 2 Sargent 8290 LNE 26D Mortise Lock, Grade 2
    Quick view

    Sargent 8290 LNE 26D Mortise Lock, Grade 2

    Sargent
    MSRP: $1,873.00
    $986.66
    The Sargent 8290 LNE 26D is a heavy-duty mortise lock exceeding ANSI/BHMA Grade 2 standards for maximum security and durability. Ideal for commercial facilities, hospitals, schools, and offices, this lock delivers strength and reliability to protect...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,873.00
    $986.66
    Subtotal:
  • Sargent 8200 70-8255 WTP 26D Mortise Lock, Grade 2 Sargent 8200 70-8255 WTP 26D Mortise Lock, Grade 2
    Quick view

    Sargent 8200 70-8255 WTP 26D Mortise Lock, Grade 2

    Sargent
    MSRP: $1,598.00
    $851.16
    The Sargent 8200 mortise lock (model 70-8255 WTP 26D) is a heavy-duty Grade 2 certified lock designed for commercial and institutional doors requiring maximum security and durability. It exceeds ANSI/BHMA A156.13 Series 1000 standards and is UL-cUL...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,598.00
    $851.16
    Subtotal:
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