Shop Drawing Review That Compares to the Contract Documents Automatically
Every submittal carries the same question: does this match what we drew and what we spec'd? Helonic answers it.
Shop drawing review is the work architects most often defer or rush. It arrives in the middle of construction, demands a quick turnaround, and requires both technical knowledge of the trade's work and detailed memory of what the contract documents say. Helonic does the second part: cross-checks every submittal against the architectural drawings and specifications, surfaces the deviations, and lets the architect focus on the engineering judgment.
How Helonic helps
Compares submittals to drawings and specs in one pass
Helonic ingests the submittal alongside the project drawings and specifications. Every material call-out, dimension, and product reference is cross-checked against both sources.
Surfaces deviations clearly, with citations
When a submittal varies from the design documents, Helonic surfaces the deviation with citations to both the submittal and the contract documents - making the conversation with the trade straightforward.
Tracks substitution requests properly
Approved equals, ANSI/ASCE standards substitutions, manufacturer changes - all tracked and verified against the basis-of-design specified.
Generates response language
For each finding, Helonic suggests reviewer comment language calibrated to the architect's typical review stamps (Reviewed, Reviewed with Comments, Revise and Resubmit).
Why submittals are the most stressful part of CA
Submittal review under contract typically requires turnaround within 10 to 14 days. Each submittal can be 30 to 300 pages. The trade has every incentive to embed deviations the architect won't notice. Helonic was built to be the architect's contract-document expert during this window - comparing every dimension, every material call-out, every product reference back to the original drawings and specs at machine speed.
Architect's submittal review workflow
Upload submittal alongside contract documents
Helonic indexes the submittal against the current architectural set and specifications.
Run automated cross-reference
Every callout, dimension, and product reference in the submittal is cross-checked against the contract documents.
Review deviations
Findings ranked by severity, each with citations to both submittal pages and contract document pages.
Stamp and return with comments
Helonic generates draft review language. The architect edits, stamps, and returns to the GC.
Example issues Helonic catches
Real-world issues detected by AI analysis, specific to architects running shop drawing review:
Door hardware schedule submittal lists US26D finish on door D-205 but drawing schedule specifies US32D
Storefront submittal mullion dimensions don't reconcile with architectural opening dimensions on A-201
Tile submittal shows a manufacturer not listed as approved equal in spec 09 30 13
Casework submittal shows P-Lam color on island that contradicts the finish board approved at FRC
Resilient flooring submittal specifies a thickness that triggers an ADA threshold limit at the corridor transition
Light fixture submittal model number doesn't match the basis of design and no substitution request was submitted
Key features for this workflow
Drawing and spec cross-reference for every submittal item
Substitution request handling against basis of design
Material call-out verification (manufacturer, model, finish, size)
Dimensional verification against the architectural drawings
Color and finish selection consistency check
Auto-generated review comments with citations
What construction professionals told us
“Submittal review is the work architects told us they most often regret rushing. The answer they wanted wasn't 'review faster' - it was 'have something else read the submittal carefully first so I can focus on the judgment calls.'”
Conversations with architects in construction administration roles across commercial, residential, and institutional projects.
FAQs
What submittal formats does Helonic accept?
PDF is the standard input. Helonic indexes scanned and digital PDFs and can handle the multi-document submittals trades typically assemble (cover, drawings, cut sheets, certs).
Can it learn our review stamps?
Yes - Helonic supports your firm's submittal stamp set and matches generated comment language to your conventions (Reviewed, Furnish as Corrected, Revise and Resubmit, etc.).
How does it handle 'approved equal' requests?
Helonic identifies substitution requests, pulls the basis-of-design language from the spec, and surfaces both side by side so the architect can decide whether the substitution actually meets the basis.
Manas Gandhi
Co-founder & CTO, HelonicManas is the co-founder and CTO of Helonic, where he leads engineering and AI research for construction drawing analysis. He works directly with structural, MEP, civil, and fire protection engineers to translate the way they review drawings into AI systems that flag the issues that actually matter in the field. Before Helonic, he built machine learning pipelines for technical document understanding and has spent the last several years interviewing licensed design engineers and discipline leads to ground product decisions in real practice rather than industry assumptions.
- AI for technical document understanding
- Cross-discipline coordination workflows
- Code compliance automation (IBC, NEC, NFPA, IPC, IMC, ASCE)
- Structural and MEP drawing review systems
How this page was researched: Conversations with architects in construction administration roles across commercial, residential, and institutional projects.
Last reviewed by Manas Gandhi · May 2026
Other use cases for architects
Shop Drawing Review for other roles
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