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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  • Schlage L0172 18N 625 Double Dummy Trim Schlage L0172 18N 625 Double Dummy Trim
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    Schlage L0172 18N 625 Double Dummy Trim

    Schlage
    MSRP: $879.00
    $471.60
    L0172 18N 625 Schlage Lock Mortise Lock Double Dummy Trim, 18N Design, Bright Chrome Finish: 625/US26 Series: L9000 Series Mortise Lock Type: Locks, Cylinders, Cores, Keyblanks Sub Type:...
    Qty in Cart: 0
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    Price:
    MSRP: $879.00
    $471.60
    Subtotal:
  • Schlage L0172 41N 605 Double Dummy Trim Schlage L0172 41N 605 Double Dummy Trim
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    Schlage L0172 41N 605 Double Dummy Trim

    Schlage
    MSRP: $879.00
    $471.60
    L0172 41N 605 Schlage Lock Mortise Lock Double Dummy Trim, 41N Design, Bright Brass Finish: 605/US3 Series: L9000 Series Mortise Lock Type: Locks, Cylinders, Cores, Keyblanks Sub Type: Mortise...
    Qty in Cart: 0
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    Price:
    MSRP: $879.00
    $471.60
    Subtotal:
  • Schlage L0172 12B 606 LH Double Dummy Trim Schlage L0172 12B 606 LH Double Dummy Trim
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    Schlage L0172 12B 606 LH Double Dummy Trim

    Schlage
    MSRP: $850.00
    $460.00
    L0172 12B 606 LH Schlage Lock Mortise Lock Double Dummy Trim, 12B Design, Satin Brass Finish: 606/US4 Series: L9000 Series Mortise Lock Type: Locks, Cylinders, Cores, Keyblanks Sub Type:...
    Qty in Cart: 0
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    MSRP: $850.00
    $460.00
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  • Schlage L0172 12N 605 RH Double Dummy Trim Schlage L0172 12N 605 RH Double Dummy Trim
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    Schlage L0172 12N 605 RH Double Dummy Trim

    Schlage
    MSRP: $879.00
    $471.60
    L0172 12N 605 RH Schlage Lock Mortise Lock Double Dummy Trim, 12N Design, Bright Brass Finish: 605/US3 Series: L9000 Series Mortise Lock Type: Locks, Cylinders, Cores, Keyblanks Sub Type:...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $879.00
    $471.60
    Subtotal:
  • Schlage L0172 12N 612 LH Double Dummy Trim Schlage L0172 12N 612 LH Double Dummy Trim
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    Schlage L0172 12N 612 LH Double Dummy Trim

    Schlage
    MSRP: $879.00
    $471.60
    L0172 12N 612 LH Schlage Lock Mortise Lock Double Dummy Trim, 12N Design, Satin Bronze Finish: 612/US10 Series: L9000 Series Mortise Lock Type: Locks, Cylinders, Cores, Keyblanks Sub Type:...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $879.00
    $471.60
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  • Schlage L0172 12N 625 RH Double Dummy Trim Schlage L0172 12N 625 RH Double Dummy Trim
    Quick view

    Schlage L0172 12N 625 RH Double Dummy Trim

    Schlage
    MSRP: $879.00
    $471.60
    L0172 12N 625 RH Schlage Lock Mortise Lock Double Dummy Trim, 12N Design, Bright Chrome Finish: 625/US26 Series: L9000 Series Mortise Lock Type: Locks, Cylinders, Cores, Keyblanks Sub Type:...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $879.00
    $471.60
    Subtotal:
  • Schlage L0172 17A 613 Double Dummy Trim Schlage L0172 17A 613 Double Dummy Trim
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    Schlage L0172 17A 613 Double Dummy Trim

    Schlage
    MSRP: $868.00
    $467.20
    L0172 17A 613 Schlage Lock Mortise Lock Double Dummy Trim, 17A Design, Oil Rubbed Bronze Finish: 613/US10B Series: L9000 Series Mortise Lock Type: Locks, Cylinders, Cores, Keyblanks Sub Type:...
    Qty in Cart: 0
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    Price:
    MSRP: $868.00
    $467.20
    Subtotal:
  • Schlage L0172 42N 606 Double Dummy Trim Schlage L0172 42N 606 Double Dummy Trim
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    Schlage L0172 42N 606 Double Dummy Trim

    Schlage
    MSRP: $879.00
    $471.60
    L0172 42N 606 Schlage Lock Mortise Lock Double Dummy Trim, 42N Design, Satin Brass Finish: 606/US4 Series: L9000 Series Mortise Lock Type: Locks, Cylinders, Cores, Keyblanks Sub Type: Mortise...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $879.00
    $471.60
    Subtotal:
  • Schlage L0172 AST L 619 RH Double Dummy Trim Schlage L0172 AST L 619 RH Double Dummy Trim
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    Schlage L0172 AST L 619 RH Double Dummy Trim

    Schlage
    MSRP: $879.00
    $471.60
    L0172 AST L 619 RH Schlage Lock Mortise Lock Double Dummy Trim, AST L Design, Satin Nickel Finish: 619/US15 Series: L9000 Series Mortise Lock Type: Locks, Cylinders, Cores, Keyblanks Sub Type:...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $879.00
    $471.60
    Subtotal:
  • Schlage L0172 AST L 619 LH Double Dummy Trim Schlage L0172 AST L 619 LH Double Dummy Trim
    Quick view

    Schlage L0172 AST L 619 LH Double Dummy Trim

    Schlage
    MSRP: $879.00
    $471.60
    L0172 AST L 619 LH Schlage Lock Mortise Lock Double Dummy Trim, AST L Design, Satin Nickel Finish: 619/US15 Series: L9000 Series Mortise Lock Type: Locks, Cylinders, Cores, Keyblanks Sub Type:...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $879.00
    $471.60
    Subtotal:
  • Schlage L9050P 42N 613 Office Mortise Lock Schlage L9050P 42N 613 Office Mortise Lock
    Quick view

    Schlage L9050P 42N 613 Office Mortise Lock

    Schlage
    MSRP: $1,554.00
    $801.60
    L9050P 42N 613 Schlage Lock Mortise Lock Office Mortise Lock, 42N Design, Oil Rubbed Bronze Finish: 613/US10B Series: L9000 Series Mortise Lock Type: Locks, Cylinders, Cores, Keyblanks Sub...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,554.00
    $801.60
    Subtotal:
  • Schlage L0170 06A 609 Single Dummy Trim Schlage L0170 06A 609 Single Dummy Trim
    Quick view

    Schlage L0170 06A 609 Single Dummy Trim

    Schlage
    MSRP: $425.00
    $238.00
    L0170 06A 609 Schlage Lock Mortise Lock Single Dummy Trim, 06A Design, Antique Brass Finish: 609/US5 Series: L9000 Series Mortise Lock Type: Locks, Cylinders, Cores, Keyblanks Sub Type:...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $425.00
    $238.00
    Subtotal:
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