- AHC Credential Overview: The Facts That Matter
- The 10 AHC Domains in One Glance
- Exam Format: Part 1, 2, and 3 Mechanics
- Eligibility Routes at a Glance
- Fees, Retakes, and Renewal Numbers
- High-Yield Topics to Lock In Before Test Day
- A One-Week Cram Sequence Tied to the Domains
- Who Actually Hires AHC Holders
- FAQ
- Part 1 is 200 multiple-choice questions in 4 hours, proctored remotely via MonitorEDU with two cameras.
- Parts 2 (5 hours) and 3 (3 hours) are in-person, typed, and only offered at DHI Classroom Series or DHI Canada events.
- Part 1 must be passed before you can sit Parts 2 and 3 - there is no shortcut around this order.
- Exam fee is $850 (member) or $1,050 (non-member); retakes run $115 or $250 per failed part.
AHC Credential Overview: The Facts That Matter
The Architectural Hardware Consultant (AHC) credential is administered by the Door and Hardware Institute (DHI). It exists to validate that a professional can read construction documents, write hardware specifications, detail door and frame schedules, and apply the codes that govern life safety and accessibility in the built environment. If you landed here wanting a fast, single-page refresher before test day, this is that page - but it's not a substitute for real preparation. For the full walkthrough, see the AHC Study Guide 2026, and if you're still deciding whether this exam is right for you, start with What Is AHC? or AHC Meaning.
Everything below is sourced from the official June 13, 2024 AHC Exam Content Outline and DHI's published exam information - no borrowed numbers from other credentials that happen to share the same three letters.
The 10 AHC Domains in One Glance
The AHC Exam Content Outline organizes Part 1's question bank into ten content areas. Knowing the domain names cold - and roughly what each one covers - is the single highest-leverage thing you can do before exam day.
Domain 1: Architectural Drawings (Construction Documents)
Reading floor plans, elevations, and door schedules embedded in a full construction document set.
- Symbols, abbreviations, and cross-referencing between drawing sheets
Domain 2: Specifications
Understanding how hardware specifications are structured and referenced within a project manual.
- Interpreting spec sections and matching them to physical hardware
Domain 3: Codes and Standards
Building codes, fire/life safety requirements, and accessibility standards as they apply to openings.
- Fire-rated assemblies and egress requirements
Domain 4: Detailing (Scheduling)
Producing accurate hardware sets and schedules - the same skill tested directly in Part 2.
- DHI Sequence and Format familiarity
Domain 5: Estimating
Quantifying and pricing hardware sets based on project scope.
- Translating a schedule into a bid-ready takeoff
Domain 6: Hardware
Core product knowledge: hinges, closers, exit devices, locksets, and their proper application.
- Function and fit for specific door and frame conditions
Domain 7: Doors and Frames
Materials, construction types, and how door/frame selection interacts with hardware choices.
- Hollow metal, wood, and specialty frame conditions
Domain 8: Project Management (Coordination)
Coordinating hardware decisions across architects, contractors, and manufacturers through a project timeline.
- Submittals, RFIs, and sequencing of trades
Domain 9: Keying
Keying systems, master key systems, and how keying decisions integrate with hardware specifications.
- Key control and system hierarchy logic
Domain 10: Electrified Hardware
Access control integration, power transfer devices, and electrified locking hardware basics.
- Coordinating electrified openings with security and life-safety systems
For a domain-by-domain breakdown with study priorities, read the AHC Exam Domains 2026 guide. If you're trying to gauge how tough this combination of topics really is, How Hard Is the AHC Exam? walks through the difficulty realistically.
Exam Format: Part 1, 2, and 3 Mechanics
The AHC credential is not a single sitting - it's three distinct parts, and the order is fixed.
| Part | Format | Length | Delivery |
|---|---|---|---|
| Part 1 | 200 multiple-choice questions | 4 hours | Prolydian, remote via MonitorEDU (two-camera setup) |
| Part 2: Scheduling & Doors/Frames | Typed responses in Prolydian | 5 hours | DHI Classroom Series or DHI Canada events, laptop required |
| Part 3: Specification (Essay) | Typed responses in Prolydian | 3 hours | DHI Classroom Series or DHI Canada events, laptop required |
Part 1 must be passed before you can attempt the in-person Parts 2 and 3. All three parts must eventually be passed to earn the credential. Part 2 allows the DHI Sequence and Format for the Hardware Schedule, manufacturer catalogs, and NFPA 80 (2019) as references - but that permission is specific to Part 2 and does not mean every part of the exam is open-book. Don't assume Part 1 or Part 3 carry the same allowances.
Key Takeaway
Treat Part 1 as a distinct gate. You cannot register for the in-person Parts 2 and 3 until you've cleared it, so sequence your prep accordingly rather than trying to study for all three simultaneously.
For the specific score thresholds tied to each part, see AHC Passing Score 2026, and for how DHI schedules the in-person sessions throughout the year, check AHC Exam Dates 2026.
Eligibility Routes at a Glance
DHI offers four distinct paths to sit for the AHC exam. You only need to qualify through one.
- Course pathway: Complete the full DHI AHC course sequence from COR101 through AHC315.
- DHC holders: If you already hold the DHC credential, complete AHC307, AHC310, and AHC315.
- Experience + education: Document five years of industry experience plus 100 hours of related education.
- Experience only: Document ten years of industry experience.
DHI recommends AHC390 as exam preparation regardless of which route you take. If you're unsure which route fits your background, the detailed breakdown in AHC Requirements 2026 covers documentation specifics for each path.
Fees, Retakes, and Renewal Numbers
Budgeting for AHC involves more than the initial exam fee - retakes and renewal are recurring costs worth planning for.
| Item | Member | Non-Member |
|---|---|---|
| Exam fee | $850 | $1,050 |
| Retake (per failed part) | $115 | $250 |
| Single-credential renewal (3-year cycle) | $175 | $210 |
Renewal requires 30 continuing-education points over a three-year cycle, with a minimum of 24 of those points being technical. That distinction matters - soft-skill or general credits alone won't satisfy the requirement. For a full cost model including course fees and study materials, read AHC Certification Cost 2026.
High-Yield Topics to Lock In Before Test Day
Given the domain structure, a handful of topics show up disproportionately across question banks and Part 2/3 exercises:
- Fire door and frame ratings tied to Domain 3 (Codes and Standards) and Domain 7 (Doors and Frames)
- Hardware set logic - matching function to opening type, central to Domain 4 (Detailing/Scheduling) and Domain 6 (Hardware)
- Master keying hierarchy and nomenclature under Domain 9 (Keying)
- Access control coordination for electrified openings under Domain 10 (Electrified Hardware)
- Submittal and RFI sequencing under Domain 8 (Project Management/Coordination)
- NFPA 80 (2019) references, since this is one of the few permitted resources during Part 2
If you want a diagnostic sense of where your own gaps are before committing study hours, run through practice questions on the main practice test platform and track which domains consistently trip you up.
A One-Week Cram Sequence Tied to the Domains
If you're in the final stretch before Part 1, spreading review across the domains - rather than re-reading everything - is more efficient. This is not a generic study system; it's mapped directly to AHC's ten domains.
Documents & Specs
- Drill Domain 1 (Architectural Drawings) and Domain 2 (Specifications) together since they're read in tandem on real projects
Codes
- Focus solely on Domain 3, especially fire-rating and egress rules likely to appear as scenario questions
Scheduling & Estimating
- Pair Domain 4 and Domain 5 - schedule accuracy directly feeds estimating logic
Product Knowledge
- Domain 6 and Domain 7 together: hardware function only makes sense in context of the door/frame it's mounted on
Coordination, Keying, Electrified
- Cover Domain 8, 9, and 10 in one sitting since they're each smaller but detail-heavy
Full Review
- Run a full-length timed practice session and revisit any domain that felt shaky
This sequencing logic - and a longer-horizon version for candidates with more lead time - is covered in more depth in the AHC Study Guide 2026.
Who Actually Hires AHC Holders
AHC certification signals door and hardware expertise to a fairly specific set of employers: architectural hardware distributors, hardware consulting firms, door and frame manufacturers, and construction firms that manage their own hardware specification and procurement. Some general contractors and architecture firms also look for AHC-credentialed staff or consultants when a project's opening schedule is complex enough to warrant dedicated expertise.
If you're evaluating whether the credential translates into better job prospects or pay, the AHC Salary Guide 2026 and Is the AHC Certification Worth It? both dig into that question in detail. For active listings and role types, AHC Jobs is a useful reference point once you're closer to certified.
Key Takeaway
Because Domain 6, 7, 9, and 10 map so closely to product and system knowledge, candidates coming from a distributor or manufacturer background often have a head start - but still need dedicated time on Domains 1-3 and 8, which lean more on documentation and process.
FAQ
No. Part 1 must be passed before you're eligible to sit for the in-person Part 2 (Scheduling & Doors/Frames) and Part 3 (Specification Essay).
No. Part 2 permits specific references - the DHI Sequence and Format for the Hardware Schedule, manufacturer catalogs, and NFPA 80 (2019) - but this does not apply universally to every part of the exam.
Retakes cost $115 per failed part for DHI members and $250 per failed part for non-members.
Renewal runs on a three-year cycle and requires 30 continuing-education points, at least 24 of which must be technical points.
There's no single "most weighted" domain published, but Codes and Standards, Hardware, and Detailing (Scheduling) tend to intersect with the most other domains, so mastering them pays off across the whole exam. See the AHC Exam Domains 2026 guide for a deeper breakdown.
Keep this page bookmarked as your final-week reference, but pair it with real practice repetitions - the AHC practice test platform is the fastest way to see which of these ten domains still need work before you schedule Part 1.