Catch dimension errors before the field does
Automatically verify that dimensions add up correctly and match across sheets. Helonic catches dimension string errors, plan vs elevation mismatches, and scale inconsistencies before they reach the field.
Why dimensional verification matters
How often dimensional issues hide in drawings and what it costs to chase them in the field.
From PDF upload to dimension report
Helonic reads every dimension on every sheet and reconciles them, in minutes.
Upload drawings
Drop your PDF drawing set into Helonic. Our AI processes architectural, structural, and MEP sheets for dimension data.
Dimension extraction
AI reads and catalogs every dimension on every sheet, linear, angular, elevation callouts, and grid spacings.
Cross-reference check
Extracted dimensions are validated against each other: strings must sum, plans must match elevations, schedules must agree.
Error report
Receive a detailed report of every dimension discrepancy with exact sheet references and recommended corrections.
Key capabilities
The dimensional checks Helonic runs across your full drawing set.
String Verification
- Confirms sequential dimensions sum to the overall dimension
- Catches stray inches and feet conversion mistakes
- Flags partial dimension strings that don't reconcile
Cross-View Consistency
- Validates horizontal dimensions on plans match elevations and sections
- Catches plan vs section mismatches in the same room
- Reconciles roof, floor, and ceiling heights across views
Schedule Coordination
- Ensures room dimensions in schedules agree with the drawn layout
- Verifies door and window opening sizes match openings on plans
- Matches equipment footprints in schedules to plan locations
Grid & Scale
- Verifies grid spacing is consistent across all sheets
- Confirms stated scale matches actual proportions
- Catches scale conflicts between details and parent plans
Why this matters
Dimension errors are among the most common and costly mistakes in construction documents. A wall that is 10'-6" on the plan but 10'-0" on the elevation creates confusion in the field, triggers RFIs, and delays work. When dimension strings don't add up, contractors are left guessing which number is correct.
Manually checking every dimension across a full drawing set is practically impossible on a deadline. Helonic reads every dimension on every sheet and cross-references them in minutes, catching errors that would otherwise become expensive field problems.
Every flagged discrepancy comes with sheet references and a recommended fix, so your team can act on it the moment it surfaces.
Keep exploring
Related guides and features for teams focused on drawing accuracy.