Verify schedule-to-plan consistency
Helonic is an AI construction drawing analysis platform for preconstruction teams using Helonic for schedule verification.
Confirm that door schedules, window schedules, finish schedules, and equipment schedules match what is actually shown on the floor plans. Catch the mismatches that cause ordering errors and field rework, before anyone places an order.
Why does schedule verification matter?
A door, finish, or equipment schedule that disagrees with the plan orders the wrong item, and the fix arrives after lead time is already spent.
| Figure | What it measures |
|---|---|
| 35% | Doors that have schedule mismatches |
| $5K | Average door schedule cost per error (RS Means) |
| 10% | Inspection fails from fire rating mismatches (ICC) |
| 20+ hrs | Typical manual verification effort |
How does Helonic go from PDFs to verified schedules?
Helonic reconciles every tag on the plan against every row in the schedule so a missing or conflicting mark is visible before procurement.
- Extract schedules. AI reads door, window, finish, and equipment schedules from your drawing set, sheet by sheet.
- Read floor plans. AI identifies doors, windows, room tags, and equipment marks on every floor plan in the set.
- Cross-reference. Each item on the plan is matched against the corresponding schedule entry, attribute by attribute.
- Flag discrepancies. Mismatches in dimensions, types, fire ratings, hardware, or missing items are reported with exact locations.
Which schedule types does Helonic verify?
Helonic verifies the schedules that generate the most field errors, including doors, finishes, hardware, lighting, and equipment.
Door Schedules
- Door mark matches floor plan tag
- Width and height consistency
- Fire rating requirements
- Hardware set coordination
- Frame type alignment
Window Schedules
- Window type vs elevation reference
- Size consistency across views
- Glazing type requirements
- Operation type (fixed, casement, etc.)
- Head height coordination
Finish Schedules
- Room name vs finish assignment
- Floor finish consistency
- Wall finish coordination
- Ceiling type and height
- Base and trim requirements
Other Schedules
- Equipment schedules
- Louver and grille schedules
- Fixture schedules
- Panel schedules vs one-line diagrams
- Plumbing fixture schedules
What do schedule errors cost?
Door schedule errors are among the most common and costly coordination failures in construction. A mismatch between what the floor plan shows and what the schedule says means wrong doors get ordered, wrong frames get installed, or wrong hardware gets specified.
By the time you catch it, the doors are on site. Returning custom doors is expensive, modifying frames is labor-intensive, and missing fire ratings is a code violation.
Helonic catches these before ordering. Every door tag on your floor plans is verified against the door schedule. Mismatches are flagged with exact locations and recommended fixes.
Frequently Asked Questions
How does Helonic check a door schedule against the floor plans?
Which construction schedules can Helonic verify against the plans?
Can Helonic catch fire rating mismatches between the door schedule and the plans?
Does Helonic find plan tags that are missing from the schedule?
How does Helonic check a finish schedule against room names?
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: Door schedule error cost figures from RS Means and inspection failure rates tied to fire rating mismatches from the ICC. The checks are built around the standard practice of tagging doors, windows, rooms, and equipment on the plans and keying each tag to a row in the matching schedule.
Last reviewed by Manas Gandhi · October 2026