When comparing commercial door locks, deadbolts, knobs, or levers, you will often see products described as ANSI/BHMA Grade 1, Grade 2, or Grade 3. These grades are not simply marketing labels. They represent performance levels established through standardized testing for durability, operation, strength, security, and other characteristics.
The basic ranking is easy to remember: Grade 1 is the highest performance level, Grade 2 is the intermediate level, and Grade 3 is the lighter-duty level within the applicable ANSI/BHMA standard.
What becomes more complicated is that the exact testing requirements depend on the type of hardware. A cylindrical lock, mortise lock, deadbolt, exit device, hinge, and door closer are not all tested to the same cycle counts or criteria.
This guide explains what door hardware grades mean, how Grade 1, Grade 2, and Grade 3 locks differ, and what to check before selecting hardware for a residential or commercial opening.
Grade 1 vs. Grade 2 vs. Grade 3 Door Locks: Quick Answer
Grade 1 is the highest performance grade commonly used for commercial and institutional door hardware. It is designed for demanding applications and must meet the most stringent requirements of the applicable ANSI/BHMA standard.
Grade 2 is an intermediate performance level commonly used in light- to medium-duty commercial applications and higher-use residential applications.
Grade 3 represents a lighter-duty performance level and is commonly associated with residential and lower-traffic applications.
These descriptions are useful starting points, but the correct hardware grade depends on the opening, traffic level, building specification, applicable code requirements, security requirements, and the specific product standard.
What Does ANSI/BHMA Mean?
BHMA stands for the Builders Hardware Manufacturers Association. BHMA develops performance standards for builders hardware, including locks, latches, exit devices, closers, hinges, cylinders, and other door components.
ANSI is the American National Standards Institute. Standards developed through the ANSI-accredited process are commonly identified as ANSI/BHMA standards.
For example, bored and preassembled locks and latches are covered by ANSI/BHMA A156.2, while mortise locks are covered by ANSI/BHMA A156.13.
The important point for buyers is that an ANSI/BHMA grade refers to testing performed under the applicable standard for that particular type of hardware.
What Is a Grade 1 Door Lock?
Grade 1 is the highest performance level in the common three-grade lock classifications.
Grade 1 products are generally intended for demanding commercial and institutional applications where durability, strength, and reliable operation are especially important.
Examples can include:
- High-traffic commercial entrances
- Schools and universities
- Healthcare facilities
- Government buildings
- Office buildings
- Retail entrances
- Institutional facilities
- Frequently used corridors
- Service and maintenance areas
Grade 1 does not mean that every Grade 1 product is identical. A Grade 1 cylindrical lock and a Grade 1 mortise lock are different products tested under different standards.
Browse Commercial Door Hardware to compare hardware intended for commercial applications.
What Is a Grade 2 Door Lock?
Grade 2 represents an intermediate performance level.
Grade 2 locks can be appropriate for many offices, multifamily properties, interior commercial openings, lower-traffic commercial applications, and higher-use residential installations.
A Grade 2 product must still meet the Grade 2 requirements of its applicable ANSI/BHMA standard.
Grade 2 should not automatically be considered inadequate simply because Grade 1 exists. The goal is to match the hardware to the actual opening and project requirements.
For example, a lightly used private office may have very different durability requirements from a public entrance that cycles hundreds of times each day.
What Is a Grade 3 Door Lock?
Grade 3 is the lighter-duty level within many common ANSI/BHMA lock standards.
Grade 3 hardware is commonly encountered in residential applications and other openings with lower expected traffic or performance demands.
It may be completely appropriate for certain residential interior or lower-use openings.
However, Grade 3 hardware generally should not be substituted into a commercial project that specifically requires Grade 1 or Grade 2 hardware.
Grade 1 vs. Grade 2 Locks
The biggest differences between Grade 1 and Grade 2 are the performance thresholds the products must meet.
Testing can include:
- Operating cycles
- Lever or knob torque
- Latch operation
- Door impact
- Bolt strength
- Forced-entry resistance
- Warped-door testing
- Finish durability
- Other requirements defined by the applicable standard
Grade 1 must satisfy the Grade 1 criteria. Grade 2 must satisfy the Grade 2 criteria.
For bored locks covered by ANSI/BHMA A156.2, Grade 1 products are tested to a substantially higher cycle requirement than Grade 2 products.
That additional durability becomes especially important on doors that are opened and closed repeatedly throughout the day.
Grade 2 vs. Grade 3 Locks
Grade 2 provides a higher performance level than Grade 3 within the same applicable standard.
The difference may include cycle endurance as well as strength and security testing.
A Grade 3 lock that performs well on a lightly used residential opening may not be appropriate for an office, classroom, store, or other opening that experiences substantially greater traffic.
Do not select a grade based only on purchase price. Consider how often the door will be used and how disruptive a hardware failure would be.
What Does Cycle Testing Mean?
A cycle represents repeated operation of the hardware under standardized test conditions.
For a lockset, that generally means repeatedly operating the lock and latch through opening and closing cycles while the product is subjected to the conditions specified by the applicable standard.
Cycle testing is useful because door hardware can experience enormous amounts of use over its service life.
A commercial entrance used by employees, customers, deliveries, and maintenance personnel can accumulate far more cycles than a bedroom door in a home.
How Many Cycles Are Grade 1, Grade 2, and Grade 3 Locks Tested For?
The answer depends on the hardware type and ANSI/BHMA standard.
For bored locks covered by ANSI/BHMA A156.2, commonly published ANSI/BHMA testing information lists:
- Grade 1: 1,000,000 cycles
- Grade 2: 400,000 cycles
- Grade 3: 200,000 cycles
Those numbers should not be applied automatically to every type of door hardware.
Mortise locks, exit devices, closers, deadbolts, and hinges have their own standards and testing requirements.
Why You Cannot Compare Grades Across Unrelated Hardware Types
A Grade 1 hinge and a Grade 1 lock are both high-performance products within their respective standards, but they are not subjected to the same testing.
For example, Grade 1 hinges can be tested through millions of cycles, while Grade 1 exit devices and locks use different cycle requirements.
This does not mean the hinge is automatically “better” than the lock.
It simply means each hardware category has testing designed around how that product operates.
Always compare grade within the same hardware category and applicable ANSI/BHMA standard.
Grade 1 Cylindrical Locks
Cylindrical locks are installed primarily through round holes bored through the face and edge of a door.
They are widely used in commercial offices, schools, retail buildings, service areas, and institutional applications.
Commercial cylindrical locks can be available in Grade 1 and Grade 2 configurations depending on the manufacturer and series.
Browse Commercial Entry Door Levers and Commercial Door Knobs to compare available commercial lock families.
If you are unsure how cylindrical locks differ from mortise locks, read our Mortise Lock vs. Cylindrical Lock guide.
Grade 1 Mortise Locks
A mortise lock uses a rectangular lock case installed into a pocket in the edge of the door.
Commercial mortise locks are commonly used in institutional, commercial, hospitality, healthcare, and other demanding applications.
ANSI/BHMA A156.13 establishes performance requirements for mortise locks and includes operational, cycle, strength, security, and other tests.
Grade 1 mortise locks are intended to meet the highest performance level defined by that standard.
Browse Commercial Mortise Locks for available mortise hardware.
Operational Grade and Security Grade Can Be Different
This is an important detail that is often overlooked.
Some hardware standards and product configurations distinguish between operational performance and security performance.
A lock may therefore have one operational grade and a different security grade depending on the cylinder, interchangeable core, or other configuration.
Do not assume that seeing “Grade 1” in one part of a product specification means every component or every performance category is Grade 1.
Read the complete certification information for the exact configuration you are purchasing.
Can an Interchangeable Core Affect the Lock Grade?
It can.
Some commercial lock manufacturers publish different security grades depending on whether the lock uses a conventional cylinder, full-size interchangeable core, or small-format interchangeable core.
The lock chassis may retain a high operational grade while the security grade associated with a particular cylinder or core configuration differs.
If your project uses SFIC, LFIC, or FSIC hardware, verify the complete specification rather than assuming the core has no effect on the rating.
For more information on removable cores, read our Interchangeable Core Locks: SFIC vs. LFIC/FSIC guide.
Is Grade 1 the Same as Commercial Grade?
Not exactly.
“Commercial grade” is often used broadly to describe hardware intended for commercial use.
An actual ANSI/BHMA Grade 1 rating is more specific because it refers to tested performance under an applicable standard.
A commercial building can contain Grade 1 and Grade 2 hardware depending on the opening, traffic level, specification, and required function.
Therefore, do not rely only on the words “commercial grade.” Check the actual product certification and grade.
Does Grade 1 Mean the Lock Is Fire Rated?
No.
ANSI/BHMA grade and fire listing are different classifications.
A Grade 1 lock is not automatically listed for use on a fire-rated opening.
If hardware is being installed on a fire-rated door, verify that the specific lock, latch, exit device, closer, hinge, and other required components are appropriate for the listed door assembly.
The door, frame, hardware, glazing, and installation work together as a complete system.
For additional information, see our Commercial Door Compliance: ADA & Fire Code Basics guide.
Does Grade 1 Mean the Hardware Is ADA Compliant?
No.
Performance grade and accessibility requirements are separate issues.
Accessible hardware must satisfy applicable requirements for operability, clearances, opening forces, mounting conditions, and the complete accessible route.
A Grade 1 lock can be available with accessible lever trim, but the Grade 1 designation by itself does not prove that the entire opening complies with accessibility requirements.
Does Grade 1 Mean High Security?
Grade 1 indicates that the product satisfies the Grade 1 requirements of its applicable ANSI/BHMA standard.
It does not automatically mean the cylinder has restricted key control, drill resistance, pick resistance, patented keys, or another high-security certification.
Those features can involve separate standards, cylinder options, listings, or manufacturer systems.
When higher security is required, evaluate both the lock chassis and the cylinder or key system.
What About Grade 1 Deadbolts?
Deadbolts are commonly used on commercial and residential exterior openings, but their grading requirements are not identical to cylindrical lever or knob locks.
Commercial deadbolts can be evaluated for cycle performance, bolt strength, security, operation, and other requirements defined by the applicable standard.
Browse Commercial Deadbolts when comparing deadbolt options for commercial openings.
Should Every Commercial Door Use Grade 1 Hardware?
Not necessarily.
Grade 1 is often appropriate for demanding and high-traffic commercial openings, but some projects intentionally use Grade 2 hardware on lower-use openings.
The correct grade should come from the project specification, expected traffic level, security requirements, building use, applicable codes, and maintenance strategy.
For example, a major public entrance and a lightly used private office door may not need identical hardware.
However, if the project documents specify Grade 1 hardware, a Grade 2 product should not be substituted without proper approval.
Where Is Grade 1 Hardware Commonly Used?
Grade 1 hardware is commonly considered for openings that experience frequent use or where reliable operation is especially important.
Examples can include:
- Public entrances
- School corridors
- Healthcare facilities
- Institutional buildings
- High-traffic offices
- Government facilities
- Retail entrances
- Common areas in multifamily buildings
- Frequently used service doors
- Other demanding commercial openings
The actual grade required for a specific project should be confirmed from the project documents and applicable requirements.
Where Is Grade 2 Hardware Commonly Used?
Grade 2 hardware is commonly used where moderate duty is appropriate.
Possible applications include:
- Private offices
- Conference rooms
- Lower-traffic commercial interiors
- Staff-only areas
- Multifamily applications
- Higher-use residential entrances
- Other light- to medium-duty openings
Again, the building specification should take priority over a general application guideline.
Where Is Grade 3 Hardware Commonly Used?
Grade 3 locks are most commonly associated with lighter-duty residential applications.
They may be appropriate where traffic is low and the project does not require a higher performance grade.
Grade 3 should generally not be substituted for specified Grade 1 or Grade 2 commercial hardware simply because the lock fits the same door preparation.
Why Door Traffic Matters
Think about how many times a door opens in a normal day.
A residential side door may operate only a handful of times.
A school corridor, retail entrance, healthcare door, or busy office entrance may cycle hundreds or thousands of times.
Repeated use creates wear on:
- Springs
- Spindles
- Levers and knobs
- Latchbolts
- Bearings and bushings
- Lock cases
- Cylinders
- Fasteners
- Door and frame preparation
Selecting hardware that is appropriate for the expected duty level can reduce premature wear and service calls.
The Whole Door Opening Matters
A high-performance lock cannot compensate for every other weakness in the opening.
The complete opening can include:
- Door
- Frame
- Hinges
- Lock or latch
- Strike
- Cylinder or core
- Door closer
- Exit device
- Threshold
- Seals
- Access-control hardware
Each component should be selected for the actual application.
A Grade 1 lock installed on an improperly prepared door or poorly aligned frame can still perform badly.
Grade Does Not Replace Proper Installation
ANSI/BHMA testing is performed under controlled conditions.
Real-world performance can be affected by:
- Improper installation
- Misaligned doors and frames
- Incorrect strike positioning
- Loose fasteners
- Door sag
- Environmental exposure
- Insufficient maintenance
- Incorrect door preparation
The correct grade is only one part of a reliable opening.
Do Grade 1 Locks Last Longer?
Grade 1 locks are required to satisfy higher performance criteria within the applicable standard, including demanding durability tests.
That makes them appropriate for high-use environments where lower-duty hardware may experience accelerated wear.
However, actual service life still depends on installation, door alignment, maintenance, environmental conditions, usage, and the complete opening.
Should You Upgrade From Grade 2 to Grade 1?
Consider Grade 1 when the door experiences heavy traffic, when hardware failure would be particularly disruptive, or when the project specification requires Grade 1.
Grade 2 may be completely appropriate for many lower-traffic commercial and residential applications.
The goal should not simply be to purchase the highest grade available for every opening. The goal is to choose hardware that meets or exceeds the requirements of the opening.
Commercial Project Specifications Come First
Architectural specifications and hardware schedules frequently identify the required lock series, grade, function, finish, keyway, cylinder type, latch, strike, closer, fire listing, accessibility requirements, and other characteristics.
On these projects, replacing the specified hardware with a lower-grade product because it looks similar can create compatibility and compliance problems.
Always compare the complete specification.
For larger hardware schedules, visit our Contractor & Project Quotes page to discuss project requirements before ordering.
How Keying Relates to Hardware Grade
Hardware grade and keying describe different things.
Grade refers to performance under the applicable hardware standard.
Keying describes which keys operate the cylinder.
A commercial lock can be Grade 1 while being keyed alike, keyed different, or incorporated into a master-key system if the cylinder and system support the required configuration.
For more information, read our Keyed Alike vs. Keyed Different vs. Master Keyed Locks guide.
Grade 1 and Schlage Commercial Hardware
Schlage offers commercial lock families across different duty levels and configurations.
Some Schlage commercial series are designed around Grade 1 applications, while other product lines provide Grade 2 solutions for openings where that performance level is appropriate.
The exact certification depends on the product series, function, cylinder configuration, and model.
Browse Schlage Commercial Door Hardware and review the individual product specifications before selecting hardware for a project.
Common Door Hardware Grade Mistakes
Assuming “Commercial” Automatically Means Grade 1
Commercial hardware can be available in more than one performance grade. Verify the specific product certification.
Assuming Grade 1 Means Fire Rated
Fire listing and ANSI/BHMA performance grade are separate requirements.
Assuming Grade 1 Means ADA Compliant
Accessibility depends on the complete opening, hardware operation, installation, and applicable requirements.
Comparing Cycle Counts Across Different Hardware Types
A Grade 1 hinge and a Grade 1 lock use different standards and testing criteria. Compare products within the correct hardware category.
Ignoring Cylinder or Core Configuration
Certain interchangeable-core arrangements can affect the security grade reported for a lock configuration.
Choosing Grade Only by Price
The lowest-cost lock can become expensive if it wears prematurely on a high-traffic opening.
Replacing Specified Grade 1 Hardware With Grade 2 Without Approval
Commercial project specifications should be followed unless an approved substitution is made.
Door Hardware Grade Selection Checklist
Before selecting a lock or other graded hardware, confirm:
- Hardware type
- Applicable ANSI/BHMA standard
- Required grade
- Expected traffic level
- Door function
- Interior or exterior application
- Fire-rating requirements
- Accessibility requirements
- Lock function
- Door and frame preparation
- Cylinder or interchangeable-core format
- Keyway and keying requirements
- Security requirements
- Environmental exposure
- Manufacturer and series
- Project specification
Frequently Asked Questions
Is Grade 1 Better Than Grade 2?
Grade 1 represents a higher performance level than Grade 2 within the same applicable ANSI/BHMA standard. Grade 1 products must satisfy the Grade 1 testing criteria, while Grade 2 products must satisfy the Grade 2 criteria.
Is Grade 2 Better Than Grade 3?
Yes, within the same applicable lock standard, Grade 2 represents a higher performance level than Grade 3.
What Is the Highest Door Lock Grade?
For the common Grade 1, Grade 2, and Grade 3 lock classifications, Grade 1 is the highest performance level.
Is Grade 1 Required for Commercial Doors?
Not every commercial opening automatically requires Grade 1 hardware. Requirements depend on the project specification, hardware type, building use, applicable codes, and the authority having jurisdiction. Many demanding commercial openings use Grade 1 hardware, while Grade 2 can be appropriate for certain lighter-duty applications.
Is Grade 2 Good for Commercial Use?
Grade 2 hardware is commonly used for many light- and moderate-duty commercial applications when permitted by the project requirements.
Is Grade 3 Commercial Hardware?
Grade 3 is commonly associated with lighter-duty residential applications. It should not be substituted where a commercial project specifies Grade 1 or Grade 2.
How Many Cycles Is a Grade 1 Lock Tested For?
The cycle requirement depends on the hardware category. A Grade 1 bored lock under ANSI/BHMA A156.2, for example, is tested through one million cycles. Other hardware categories use different requirements.
How Many Cycles Is a Grade 2 Lock Tested For?
For bored locks, commonly published ANSI/BHMA testing information lists 400,000 cycles for Grade 2. Other hardware types have different cycle requirements.
How Many Cycles Is a Grade 3 Lock Tested For?
For bored locks, commonly published ANSI/BHMA testing information lists 200,000 cycles for Grade 3. Do not apply this number automatically to mortise locks, closers, exit devices, hinges, or other hardware categories.
Does Grade 1 Mean the Lock Cannot Be Forced Open?
No lock is automatically immune to every type of attack. Grade 1 means the product has satisfied the Grade 1 performance tests defined by the applicable standard. Door construction, frame strength, strike installation, cylinder security, hardware configuration, and installation all affect the complete opening.
Is an ANSI/BHMA Grade the Same as a UL Listing?
No. ANSI/BHMA performance grades and UL listings address different standards and performance requirements. A product can carry multiple certifications or listings, so review the complete specification.
Can an SFIC Core Change the Security Grade of a Lock?
Depending on the manufacturer and product configuration, yes. Some commercial locks publish different security grades for conventional, FSIC/LFIC, and SFIC cylinder configurations. Verify the exact model and cylinder option.
Which Grade Should I Buy?
Choose the grade required by the project and appropriate for the expected duty level of the opening. High-traffic commercial openings commonly use Grade 1. Grade 2 is widely used in many moderate-duty commercial and higher-use residential applications. Grade 3 is generally associated with lighter-duty residential use.
Choosing the Right Door Hardware Grade
Start with the opening rather than the grade number.
Determine how frequently the door will be used, what lock function is required, whether the opening is fire rated, whether accessibility requirements apply, what cylinder or core system is being used, and whether the project specification identifies a required ANSI/BHMA grade.
Then compare products within the correct hardware category and standard.
Grade 1 is the highest performance level for many common lock standards and is widely used on demanding commercial openings. Grade 2 provides a strong intermediate option for many moderate-duty applications. Grade 3 is commonly used for lighter-duty residential openings.
Most importantly, remember that the grade is only one piece of the complete door system.
Browse Factory Direct Hardware's Commercial Door Hardware, Commercial Entry Door Levers, Commercial Door Knobs, Commercial Deadbolts, and Commercial Mortise Locks to compare available hardware.
For additional terminology, visit our Hardware Glossary, or browse the Factory Direct Hardware Learning Center for more guides covering commercial locks, keying, interchangeable cores, door closers, hinges, and other door hardware.
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