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

Filter By

Sort By:

Display Type:
Filters
  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • Marks USA 22F Panic Proof Mortise Lock, 2-1/2" Backset Marks 22F Mortise Lock for Security Door / Storm Door
    Quick view

    Marks USA 22F Panic Proof Mortise Lock, 2-1/2" Backset

    Marks USA
    $160.81 - $175.81
    The Marks 22F is a panic-proof mortise lock for iron security and storm doors. The inside lever always retracts the bolt instantly, even when locked from outside, meeting fire safety codes for...
    Options
    Qty in Cart: 0
    Quantity:
    Price:
    $160.81 - $175.81
    Subtotal:
    Options
  • Adams Rite MS1850S 1-1/8" Backset Hook Bolt Deadlock Adams Rite MS1850S 1-1/8" Backset Hook Bolt Deadlock
    Quick view

    Adams Rite MS1850S 1-1/8" Backset Hook Bolt Deadlock

    Adams Rite
    MSRP: $92.00
    $62.23
    The Adams Rite MS1850S is a heavy-duty hook bolt deadlock engineered for sliding glass doors in commercial, industrial, and institutional facilities. Its laminated stainless steel hookbolt resists...
    Options
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $92.00
    $62.23
    Subtotal:
    Options
  • Marks USA 3 Series Mortise Deadbolt 3/3 3/32D 2-3/4" Backset
    Quick view

    Marks USA 3 Series Mortise Deadbolt 2-3/4" Backset

    Marks USA
    MSRP: $90.00
    $80.38
    The Marks USA 3 Series Mortise Deadbolt is a heavy-duty locking solution for residential and commercial applications including security doors, storm doors, and gates. Its 1-inch bolt throw and...
    Options
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $90.00
    $80.38
    Subtotal:
    Options
  • Marks 21AC UniLock Mortise Lock for Security Door / Storm Door Marks USA 21 Series Parts Breakdown
    Quick view

    Marks Lock 21 Series UniLock 21AC Mortise Lock for Security Door and Storm Door

    Marks USA
    $125.25 - $140.25
    The Marks 21AC is the lever-handle sibling of our best-selling 22AC iron door lock, built on the same narrow-stile UniLock mortise body that fits ornamental iron security doors and storm doors. If...
    Options
    Qty in Cart: 0
    Quantity:
    Price:
    $125.25 - $140.25
    Subtotal:
    Options
  • Marks 22AC Mortise Lock for Security Door / Storm Door Marks USA 22 Series Parts Breakdown
    Quick view

    Marks Lock 22AC Ornamental Iron Mortise Lock Security Door Lock

    Marks USA
    $109.11 - $124.11
    If you own an ornamental iron security door or storm door, this is almost certainly the replacement lock you are looking for. The Marks 22AC is the industry-standard narrow-stile mortise lockset for...
    Options
    Qty in Cart: 0
    Quantity:
    Price:
    $109.11 - $124.11
    Subtotal:
    Options
  • Marks USA 2 Series Mortise Deadbolt 2/3 2/32D 2-1/2" Backset
    Quick view

    Marks USA 2 Series Mortise Deadbolt 2-1/2" Backset

    Marks USA
    MSRP: $90.00
    $80.38
    The Marks USA 2 Series Mortise Deadbolt is a heavy-duty locking mechanism designed for security doors, storm doors, and residential or commercial applications. With a 1-inch bolt throw and...
    Options
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $90.00
    $80.38
    Subtotal:
    Options
  • Marks Metro Mortise Lockset 91A/3-X 1-1/4" x 8" Faceplate Marks USA 91A/3-X Metro Mortise Lockset 1-1/4" x 8"
    Quick view

    Marks USA 91A/3-X Metro Mortise Lockset 1-1/4" x 8"

    Marks USA
    MSRP: $180.00
    $141.28
    The Marks USA Metro Mortise Lockset 91A/3-X is a commercial-grade entry lock designed for businesses and property managers who need reliable, durable security on standard doors. This double cylinder...
    Options
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $180.00
    $141.28
    Subtotal:
    Options
  • Marks - Ornament Unilock Lever/Plate Mortise Lockset 9215AC/3 Marks - Ornament Unilock Lever/Plate Mortise Lockset 9215AC/26D
    Quick view

    Marks Lock Ornament 9215AC/3 Unilock Lever/Plate Mortise Lock For Security Door / Storm Door

    Marks USA
    MSRP: $225.00
    $171.15
    The Marks 9215AC is the lever-and-plate styling of the company's ornamental iron door mortise locks: the same narrow-stile UniLock body that fits security doors and storm doors, dressed with a full...
    Options
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $225.00
    $171.15
    Subtotal:
    Options
  • Marks Lock 7NY92 New Yorker Lever Plate Design For Apartment Entrance and Vestibule Door Marks Lock 7NY92 New Yorker Lever Plate Design For Apartment Entrance and Vestibule Door
    Quick view

    Marks Lock 7NY92 New Yorker Lever Plate Design For Apartment Entrance and Vestibule Door

    Marks USA
    MSRP: $410.00
    $286.05
    The Marks USA 7NY92 New Yorker is a mortise lever lock designed for apartment entrances and vestibule doors in high-traffic settings. This reversible lock features independent spring-loaded spindles...
    Options
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $410.00
    $286.05
    Subtotal:
    Options
  • Marks MKRW96/32D Grade 1 Titan Lever/Rose Mortise Lock Trim Set
    Quick view

    Marks MKRW96/32D Grade 1 Titan Lever/Rose Mortise Lock Trim Set

    Marks USA
    MSRP: $298.00
    $178.28
    The Marks USA MKRW96/32D is a Grade 1 Titan lever and rose mortise lock trim set designed for commercial and institutional facilities requiring heavy-duty security hardware. This complete assembly...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $298.00
    $178.28
    Subtotal:
    Add to Cart
  • Marks MKRW92/32D Grade 1 American Lever/Rose Mortise Lock Trim Set
    Quick view

    Marks MKRW92/32D Grade 1 American Lever/Rose Mortise Lock Trim Set

    Marks USA
    MSRP: $298.00
    $178.28
    The Marks MKRW92/32D is a Grade 1 mortise lock trim set featuring American-style lever handles with matching roses on both sides. Complete with spindles, collar, turn piece, and cylinder, it's ideal...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $298.00
    $178.28
    Subtotal:
    Add to Cart
  • Marks MKRW86/32D Grade 1 Crescent Lever/Rose Mortise Lock Trim Set
    Quick view

    Marks MKRW86/32D Grade 1 Crescent Lever/Rose Mortise Lock Trim Set

    Marks USA
    MSRP: $317.00
    $198.73
    This complete mortise lock trim set from Marks USA includes lever and rose assemblies for both sides, spindles, collar, turn piece, and cylinder with screws. Ideal for commercial and institutional...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $317.00
    $198.73
    Subtotal:
    Add to Cart
  • Total: items /

Adding your products to cart

View Cart Continue Shopping