Publish Time: 2026-04-13 Origin: D&D HARDWARE
ANSI/BHMA Certified • Grade 1 & Grade 2
Factory-direct ANSI/BHMA certified door hinges for commercial doors — Grade 1 (2,500,000 cycles) and Grade 2 (1,500,000 cycles). Certified to A156.1 and A156.18. 11 certified sizes available.
ANSI/BHMA Certified Grade 1 · 2,500,000 Cycles Grade 2 · 1,500,000 Cycles 11 Certified Sizes
Overview
An ANSI/BHMA certified door hinge is a hinge that has been independently tested and certified to meet the performance standards established by the American National Standards Institute (ANSI) and the Builders Hardware Manufacturers Association (BHMA) — the primary certification body for commercial door hardware in North America.
ANSI/BHMA certification provides architects, specifiers, and contractors with a standardised, independently verified measure of a hinge's performance, durability, and material quality. Unlike manufacturer-claimed specifications, ANSI/BHMA grades are determined through rigorous third-party testing at accredited laboratories, ensuring that the published performance figures are reliable and reproducible.
D&D Hardware's ANSI/BHMA certified door hinges are tested and certified to two key standards: ANSI/BHMA A156.1 (Butts and Hinges) for mechanical performance and cycle durability, and ANSI/BHMA A156.18 (Materials and Finishes) for surface finish quality and corrosion resistance. The range covers 11 certified sizes across both Grade 1 (2,500,000 cycles) and Grade 2 (1,500,000 cycles) classifications, providing the right solution for every commercial door application from standard interior doors to heavy-duty entrance systems.
Performance Grades
D&D Hardware offers ANSI/BHMA certified hinges in both Grade 1 and Grade 2 classifications. Understanding the difference ensures the right specification for your project.
Grade 1 is the highest performance classification under ANSI/BHMA A156.1. It is designed for the most demanding commercial applications where doors experience extremely high traffic volumes and must maintain performance and alignment over a very long service life. Grade 1 hinges are typically specified for main entrance doors, high-traffic corridor doors, stairwell doors, and any application where maximum durability is non-negotiable.
✅️2,500,000 cycle durability test
✅️Four ball bearing construction
✅️Heavy duty & full mortise hinge types
✅️Suitable for heavy commercial doors
✅️Recommended for high-traffic entrances
Grade 2 is the standard commercial classification under ANSI/BHMA A156.1. It is suitable for commercial doors in moderate-traffic environments such as office interiors, hotel corridors, retail spaces, and educational facilities. Grade 2 hinges provide excellent durability and reliable performance for the majority of commercial door applications at a more cost-effective specification point.
✅️1,500,000 cycle durability test
✅️Two ball bearing construction
✅️Full mortise & standard weight types
✅️Suitable for standard commercial doors
✅️Ideal for moderate-traffic applications
| Specification | Grade 1 | Grade 2 |
| Cycle Test Requirement | 2,500,000 cycles | 1,500,000 cycles |
| Bearing Type | Four Ball Bearing (4BB) | Two Ball Bearing (2BB) |
| Hinge Types | Heavy Duty & Full Mortise | Full Mortise & Standard Weight |
| Recommended Application | High-traffic / Heavy doors | Standard commercial doors |
| Standard | ANSI/BHMA A156.1 | ANSI/BHMA A156.1 |
| Finish Standard | ANSI/BHMA A156.18 | ANSI/BHMA A156.18 |
Certification Standards
D&D Hardware's ANSI/BHMA door hinges are certified to two complementary standards that together cover both mechanical performance and finish quality.
ⓘ Why ANSI/BHMA Certification Matters for Commercial Door Specifications
Many commercial building specifications, particularly for institutional, healthcare, and government projects in North America, explicitly require hardware to be certified to ANSI/BHMA standards. Specifying ANSI/BHMA certified hinges provides documented evidence of performance, simplifies the approval process, and protects contractors and building owners from liability associated with premature hardware failure. D&D Hardware's certification to both A156.1 and A156.18 ensures comprehensive compliance with these specification requirements.
Product Specifications
All 11 sizes listed below are individually certified under ANSI/BHMA A156.1 and A156.18. The range covers both Grade 1 and Grade 2 classifications across heavy duty, full mortise, and standard weight hinge types.
| Size (H × W × T) | Hinge Type | Bearing Type | Grade | |
| ANSI Grade 1 — Heavy Duty Hinge (4 Ball Bearing) | ||||
| 1 | 4.5" × 4.0" × 4.6mm | Heavy Duty Hinge | 4 Ball Bearing | Grade 1 |
| 2 | 4.5" × 4.5" × 4.6mm | Heavy Duty Hinge | 4 Ball Bearing | Grade 1 |
| ANSI Grade 1 — Full Mortise Hinge (4 Ball Bearing) | ||||
| 3 | 5.0" × 4.0" × 4.8mm | Full Mortise Hinge | 4 Ball Bearing | Grade 1 |
| 4 | 5.0" × 5.0" × 4.8mm | Full Mortise Hinge | 4 Ball Bearing | Grade 1 |
| 5 | 5.0" × 4.5" × 4.8mm | Full Mortise Hinge | 4 Ball Bearing | Grade 1 |
| ANSI Grade 2 — Full Mortise Hinge (2 Ball Bearing) | ||||
| 6 | 5.0" × 3.5" × 3.7mm | Full Mortise Hinge | 2 Ball Bearing | Grade 2 |
| 7 | 5.0" × 4.0" × 3.7mm | Full Mortise Hinge | 2 Ball Bearing | Grade 2 |
| 8 | 5.0" × 4.5" × 3.7mm | Full Mortise Hinge | 2 Ball Bearing | Grade 2 |
| 9 | 5.0" × 5.0" × 3.7mm | Full Mortise Hinge | 2 Ball Bearing | Grade 2 |
| ANSI Grade 2 — Standard Weight Hinge (2 Ball Bearing) | ||||
| 10 | 4.5" × 4.0" × 3.4mm | Standard Weight Hinge | 2 Ball Bearing | Grade 2 |
| 11 | 4.5" × 4.5" × 3.4mm | Standard Weight Hinge | 2 Ball Bearing | Grade 2 |
ⓘ Material options: Stainless Steel 201 / 304 / 316 | Finish options: SSS, PSS, PVD, Matte Black, AB, RB | Custom sizes available upon request.
Why D&D Hardware
Applications
ANSI/BHMA certified door hinges are specified across a wide range of commercial building types in North America and international markets that follow ANSI standards.
Commercial Office Buildings
Hospitals & Healthcare
Government Buildings
Schools & Universities
Hotels & Hospitality
Retail & Mixed-Use
FAQ
Under ANSI/BHMA A156.1, Grade 1 and Grade 2 differ primarily in their cycle test requirements and intended application. Grade 1 requires a minimum of 2,500,000 open/close cycles and is designed for heavy-duty commercial applications with high traffic volumes. Grade 2 requires a minimum of 1,500,000 cycles and is suitable for standard commercial applications with moderate traffic. Grade 1 hinges typically feature four ball bearings, while Grade 2 hinges use two ball bearings.
ANSI/BHMA A156.1 is the standard for Butts and Hinges. It covers performance grades (Grade 1, 2, and 3), cycle durability testing, dimensional tolerances, load-bearing capacity, operational smoothness, and structural integrity requirements. Certification to A156.1 provides documented evidence that the hinge has been independently tested and meets the specified performance grade requirements.
ANSI/BHMA A156.18 is the standard for Materials and Finishes. It establishes requirements for the surface finish quality of builders hardware, including corrosion resistance (salt spray testing), adhesion, colour consistency, and appearance. Certification to A156.18 ensures that the hinge finish will maintain its protective and aesthetic properties throughout the product's service life, meeting the requirements of commercial project specifications.
Grade 1 hinges should be specified for main entrance doors, stairwell doors, high-traffic corridor doors, exterior doors, and any application where the door is expected to experience very high usage frequency or where maximum durability is required. Grade 2 hinges are appropriate for standard interior commercial doors in offices, hotels, retail spaces, and educational facilities where traffic is moderate and door weight is within standard parameters. When in doubt, specifying Grade 1 provides a higher performance margin.
Under ANSI/BHMA A156.1, a full mortise hinge is designed to be recessed (mortised) into both the door edge and the door frame, providing a flush installation that is the standard for most commercial door applications. A heavy duty hinge is a reinforced full mortise hinge with greater thickness and load-bearing capacity, designed for heavier doors or applications requiring additional structural strength. D&D Hardware offers both types in Grade 1 and Grade 2 configurations.
Yes. D&D Hardware provides official ANSI/BHMA certification documentation for all 11 certified hinge sizes, covering both A156.1 and A156.18 certifications. This includes test reports and certification certificates for both Grade 1 and Grade 2 products. These documents are available upon request and can be provided for project specification submissions, building control applications, and procurement requirements.
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