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For general contractors

Project management that reviews the drawings. Its AI finds the conflicts that cost you money.

Run RFIs, submittals, schedule and daily logs in Struxen. The AI reviews each sheet against the other trades’ sheets, the specs, the submittals and the scope you bought out, and shows each conflict on the sheet.

Project management is free. You pay for the AI.

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One platform

A complete AI-native construction management platform. Not just AI tools.

  • Struxen Core Project management Free

    RFIs Submittals Schedule Daily logs Punch

  • STRUX AI agents

    Questions Submittals Revisions RFIs

  • VANTAGE 3D build and review

    Constructability review Cited findings 3D build

  • Ledger Financials

    Budgets Change orders Pay apps Retainage

  • ACx Commissioning

    Equipment Checklists Functional tests Issues log

  • Run the whole job on Struxen.

  • Or keep your system and bring the drawings.

What changes on your job.

The same people run the job. The AI does the cross-checking nobody has hours for. Nothing goes out unless your team allows it.

  • A bulletin lands

    Today Someone overlays sheets for a day and hopes the unclouded changes show up.

    With Struxen The changes, clouded or not, and what each one hits, on one list.

  • Before buyout

    Today Scope gaps between trades surface after the subs are bought.

    With Struxen The drawings are reviewed against each trade’s scope while the gap can still be priced.

  • A submittal comes in

    Today It gets a stamp because nobody had time to check it against the spec and the schedule.

    With Struxen It is checked against its spec section and the drawings, with the review comments drafted.

  • A conflict turns up

    Today The RFI goes out days later, and the sheet references get dug up by hand.

    With Struxen The conflict arrives pinned to both sheets, and the RFI draft carries them. A person approves it.

  • Startup and TAB

    Today A bad reading is found by the engineer of record, or after the owner moves in.

    With Struxen Readings are checked against the design values before the report goes out.

The platform

Run the job in Struxen. The AI reviews what comes in.

Drawings, specs, RFIs, submittals, schedule and costs sit on one project record. That is how the AI traces a change from one trade’s sheet to another trade’s submittal.

Finds the problems that cost money

  • STRUX AI agents

    New drawings came in. What did they break?

    Revision compare

    Compares the new set to the last one, sheet by sheet, and lists every change, clouded or not, with what it hits on other trades’ sheets, specs and submittals.

    Struxen revision compare: a strip of a civil site plan with numbered change pins, red for removed and green for added, beside the Changes panel. The panel counts 124 added, 74 removed and 49 repositioned items, with filters for category and severity, and lists dimension changes 3 and 4 as Removed, with Medium severity. Callout on a numbered change pin on the sheet: Each pin is a change. Callout on the Medium severity of a change in the Changes panel: Each change, with its severity.

    On the job

    Know what a bulletin touched before the work is bought, built or priced against it.

  • VANTAGE 3D build and review

    Cross-trade coordination

    While VANTAGE builds the set in 3D, it checks each trade’s sheets against the others and drafts an RFI where they disagree, for a person to review.

    Close view of a staged VANTAGE structural model: a gray slab with blue column grid lines labeled BE, BE.2 and BF, a footing stepping off the slab edge at lower left, and three amber RFI tags where VANTAGE drafted RFIs for a person to review. Callout on one RFI tag on the model: A drafted RFI, waiting for review.

    On the job

    The question goes out as an RFI while it costs a phone call, not a tear-out.

  • VANTAGE 3D build and review

    3D model from your PDFs

    Builds the site and structure in 3D from the drawing set, the way a builder would.

    VANTAGE 3D site model built from the drawing set: the existing terrain as a blue mesh and the proposed grading in green, with a Layers panel listing existing terrain, proposed terrain, structures, pipes and control points. Callout on the blue existing-terrain mesh: Existing grade. Callout on the green proposed-grading surface: Proposed grade.

    On the job

    See what will not fit before the trade mobilizes.

  • STRUX AI agents

    Project Q&A

    Ask a question in plain English. The answer comes back with the sheets, specs and RFIs it came from.

    An Ask STRUX conversation on a demo project. The question asks what the life safety plan shows for explosive storage 101. After STRUX investigated, it answers under a title that names the sheet, F-102, with sections on the occupancy classification, the occupant load and the fire-resistive construction requirements. Callout on the sheet number in the answer’s title: The sheet the answer came from.

    On the job

    The field gets an answer with the sheet attached, not a callback tomorrow.

Runs the job

  • Struxen Core Project management Free

    Project management

    RFIs, submittals, drawings, specs, schedule, daily logs, punch, meetings and inspections in one place.

    The Project Pulse panel on a demo project’s home screen: 6 RFIs open with 3 overdue, 5 submittals open with 2 overdue, and 9 observations to send. Callout on the open RFI and submittal counts, from under the submittal count: Open RFIs and submittals.

    On the job

    Free for unlimited projects and users, so the whole team works on the record the AI reviews.

  • Struxen Core Project management

    Submittal and RFI logs

    Every submittal and RFI with its spec section, who has it and when it is due.

    Eleven rows of a demo project’s submittal register, with columns for status, responsible, ball in court, days held and due date. Statuses run from Approved and Approved as Noted to Submitted, Pending and Rejected. Seven items are closed out; the other four sit with the GC Project Manager, the Architect of Record or the GC Project Engineer, and one due date, Sep 28, 2026, is in red. Callout on the ball-in-court column, on an item with the GC Project Manager: Who has it, and when it is due.

    On the job

    Whose move it is and when it is due, on every submittal and RFI.

  • Ledger Financials

    Budgets and change events

    Budget, commitments, change events, pay applications and retainage on one set of cost codes.

    The Changes register in a demo project’s ledger: the Contingency report, Change settings and Export tools over the Origin column of five change events. Three changes came from RFIs (RFI-004, RFI-009 and RFI-003), one from a micropile verification test and one from an owner request at an OAC meeting. Callout on the origin column, on RFI-009: Where each change came from.

    On the job

    A conflict found in the drawings becomes a change event that still points to the RFI it came from.

  • ACx Commissioning

    Commissioning

    Equipment register, startup checklists and functional tests, checked against the design values.

    The commissioning equipment register of a demo project: filters by discipline, system and readiness, and a table of equipment with its tag, name, system, location and readiness. The rows run from an air handling unit marked Accepted, through a transfer switch, boiler, booster pump, chiller and cooling tower, to an exhaust fan marked Functional complete. Callout on the readiness column, on a unit marked Started: Readiness of each unit.

    On the job

    A bad TAB reading goes back before the report reaches the engineer of record.

Real Struxen screens. Project details hidden.

Project management is free. You pay for the AI.

Problems Struxen is built to catch.

All three were in the drawings and missed.

  • Where Struxen is built to catch it
  • Where the project found it

  • School

    $1M+

    cost to fix

    Undersized ductwork

    Most of the ductwork was replaced.

    Struxen checks each duct against the airflow it has to carry.

  • Event center

    $100K+

    cost to fix

    Sewer couldn’t make the civil connection

    A lift station had to be added.

    Struxen compares the sewer depths on the civil and plumbing sheets.

  • Gymnasium

    $200K+

    cost to fix

    No humidity control

    Two years of condensation, then new coils.

    Nothing on the sheets conflicted. A gym needs reheat.

Real historical costs to fix, from anonymized projects, rounded.

Struxen builds it before you do. The build is the review.

Struxen doesn’t just compare PDFs, search for words or read for mistakes. It builds the project.

The agents build the project from your PDF drawings, step by step, the way a builder would. Whatever won’t go together is an error or omission in the set.

Built on field knowledge from working builders, not just the internet.

Built by AI agents from the PDF drawings.No BIM model. No Revit file.

The Struxen app on a desktop monitor, building a project's foundations and structural grid in 3D from the PDF drawings

Every step is a check.

Square the grid. Close it. Set each footing on its line. A step that fails is a problem in the drawings.

Struxen Core Project management

Free.

Unlimited projects and users.

The agents work inside it, on the whole project record. No integration needed.

  • Drawings
  • Specs
  • RFIs
  • Submittals
  • Schedule
  • Daily logs
  • Punch
  • Meetings
  • Inspections
  • Photos

Questions a GC asks first.

  • Do I need a BIM model?

    No. Struxen reads your PDF drawing set, specs, and submittals as they are.

  • What is free, and what do I pay for?

    Struxen Core, the project management: drawings, specs, RFIs, submittals, schedule, daily logs, punch, meetings, inspections and photos. Unlimited projects and unlimited users, with nothing to pay to start. Only the lines you turn on, per project, per month: Ledger at $300, AI credits from $550, VANTAGE at $250 and ACx at $75. A project with none of them on is free. See pricing

  • Who sees my project data?

    Two-layer authorization (organization role + project role) is enforced server-side on every API request. Trust Center

Put your next project on Struxen.

Project management is free. Turn on the AI agents when you’re ready.

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For 20+ years, I watched problems that could have been caught on paper make it to the field. That’s why I built Struxen.

Justin K SchaadFounder & CEOTalk to Justin