Finished Lot Grades in Seconds directly inside Civil 3D™

Turn hours of manual grading work into seconds, and make changes without starting over.
Join engineers testing drtwrk on real projects.

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How it works

Six steps, inside your own drawing

Constraints in, graded surfaces out, and back into Civil 3D without breaking the dependency chain.

Screen recording: Clean 2D boundaries

Catch boundary issues before they impact grading results.

Screen recording: Clean 2D boundaries
Key features

Accuracy, speed, and a grade you can trust

Geometry checks, live grading, multi-solution comparison, manual editing, and finished lot grade export to CAD

  • 2D linework geometry check

    2D checks

    Catch 2D linework issues before grading: overhangs, underhangs, overlaps, and geometry errors.

  • 3D feature line elevation check

    3D Checks / Feature Line Creation

    Create required feature lines across a thousand-home site in minutes.

  • Slope, setback, and drainage constraint setup

    Set up constraints & presets

    Set project-specific grading constraints once. drtwrk uses them to guide every grade.

  • Real-time grade updates as constraints change

    Live grading

    Make a change and see the grade update immediately, without starting over.

  • Multiple grading solutions compared side by side

    Multiple solutions

    Generate multiple valid grades for the same lot and compare options before committing.

  • Manual inline grade edits after generation

    Manual edits

    Fine-tune the generated grade without starting over.

  • Approved grade exported back into Civil 3D

    Export to CAD

    Push approved feature lines and surfaces back into Civil 3D. They land in your drawing without breaking the dependency chain.

Why drtwrk

Built by civil engineers

Accuracy, speed, and confidence on finished lot grades, not speculative layouts.

  • Time vs. manual

    Hours of hand grading become seconds. Change one constraint and the grade updates everywhere it applies. No starting over. Grade every feature line in a lot, in a minute, at thousand-home-site scale.

  • Not another layout tool

    Finished lot grades for Civil 3D. Feature lines and surfaces that land in your drawing. Built for your existing Civil 3D workflow. Not speculative massing or a layout exercise. Not a Civil 3D replacement.

  • Cost of Change

    Design changes that once meant hours of rework now cost almost nothing. Shift a setback or adjust a constraint. The grade rebuilds in place. Less risk per iteration means you explore options instead of the first workable answer.

FAQ

Frequently asked questions

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We'll be in touch as we invite more engineers to test drtwrk.