Build Without Surprises

Catch the conflict before it costs you.

Your firm’s proven methods, applied to every drawing, spec, and submittal — from preconstruction through the field. Not generic AI.

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  • General Contractors

    Find the conflict before it costs you $2M and three months.

  • Specialty Contractors

    Catch the scope gap before it becomes a change order.

  • Designers

    Catch the coordination clash before it becomes an addendum.

Struxen doesn’t ask you to trust it.

Every finding is cited to source. Every reasoning step is logged. Every run is auditable for the project lifetime. Verify anything, anytime.

Every claim, traceable to source.

Finding · 0042Cited

VAV-217 height callout conflicts with mech schedule M-501.

SHEET A-101SPEC §033000PG 14

Every finding is cited.

Page citation, sheet number, spec section. Click any finding to open the source document in context. No hallucination, no summarization you can’t verify.

Reasoning · run-a4f2

  1. Read spec §033000.B (concrete cover requirements)
  2. Cross-reference sheet A-101 detail 4
  3. Identify height callout discrepancy (-0.5")

Every reasoning chain is visible.

See the AI’s reasoning steps. Read this spec section, cross-reference that schedule, identify the discrepancy — every step logged.

Audit LogSealed
  • 2026-05-08 · 14:22:01 · run-a4f2 · finding-0042 · severity:major
  • 2026-05-08 · 14:22:03 · run-a4f2 · cited:SHEET-A101 · ok
  • 2026-05-08 · 14:22:05 · run-a4f2 · cited:SPEC-033000 · ok
  • 2026-05-08 · 14:22:07 · run-a4f2 · status:open · sealed

Every run is auditable.

Timestamped to the second. Full reasoning chain logged. Compliance-ready audit trail retained for the project lifetime.

Your data stays yours.
AI models are never trained on your documents.

Encrypted at rest with per-tenant keys, isolated per account, hosted on AWS. Audit log retained for the project lifetime.

Friday · 4:17 PM

Your TAB contractor just forwarded a 1,240-page balance report.

Your commissioning agent starts functional testing Monday at 7 AM.

Option A

Forward the email. Hope the report is complete. See what Monday brings.

Option B

Upload it to Struxen. In fifteen minutes, every deficiency caught, every deviation cited, every finding ranked by severity. Send the findings back to your TAB contractor by 5 PM — with a Monday deadline. They work the weekend. Commissioning starts on time. Your project keeps moving.

Finding · TAB-DEF-0017Severity: Major

VAV-217 measured CFM 380 vs design 540 (-30%).

Outside ±10% commissioning tolerance. Re-balance required before functional testing.

Cited:TAB Report §4.2Mech Sched M-501

Struxen doesn’t do your job.

It does the job nobody had time for — 1,240 pages, read and cited, before Monday.

01Scenario
Project manager closing his laptop and gathering his jacket on a quiet Friday afternoon at 4:17 PM, the TAB report already handed off to Strux
Before Monday

Precon to Closeout

The intelligence layer from precon to closeout.

Strux reads the same drawings, specs, and submittals your team already has in Forma, ACC, or Procore — and answers the question whether you’re pricing the bid or standing on the slab.

01Office
Preconstruction estimator reviewing a Strux findings log at his desk
For the Office
02Field
Superintendent reading spec answers from a tablet on a finished concrete deck
For the Field

Unlimited projects. Unlimited users.

One license · No per-seat tax

The same rigor your most senior preconstruction manager delivers — on every project, every time.

Commercial high-rise under construction with Struxen findings annotated: spec conflicts, scope gaps, schedule risks, TAB deviations, and MEP clashes

Your QC process runs the same on every project. Now it runs 24/7.

AI can't put work in place. But it can read every document on the project and surface what shouldn't reach the field — cross-referencing every drawing, spec, schedule, and report against your firm's proven methods, and returning a defensible, source-cited findings log. Cited. Auditable. Every time.

02Proposal Asset

Give Your Proposal the Strux Edge

An example answer to the question owners are increasingly asking in their RFPs: “How is your firm using AI?”

Make This Yours

Included for Every Customer

  • The Struxen QC Documentation Kit — an editable findings + audit-trail packet tailored to your firm, ready to drop into owner-facing RFP responses.
  • Source-cited findings log, audit-ready.
  • Custom detector workflows (VANTAGE) for your project-specific standards.
Start building your AI QC layer

Vantage

Your firm’s methods, encoded as agents that run on every project.

Every great GC has review methods their senior PMs built over decades. VANTAGE encodes them as reusable AI workflows — scoped to your firm, private to your account — and runs them the moment a document lands.

Example

Your senior PM checks every TAB report against design documents, the approved submittal, and the VAV schedule. VANTAGE runs all three the moment the report uploads — critical findings surface before anyone opens the file.

Cross-reference

Check any document against any other — submittals against specs, TAB reports against VAV schedules, RFIs against drawings.

Compliance

Run your firm's compliance criteria on every submittal, schedule, and report — automatically, the moment it lands.

Coordination

Catch cross-discipline conflicts before they reach the field. Mechanical against structural. Electrical against architectural. Every time.

Your methods stay private. Encoded in your account. Never used to train shared models.

Vantage · Method: TAB Deficiency Review
Running
  • CRITICAL

    VAV-217 measured CFM 380 vs design 540 (-30%).

    TAB §4.2M-501
  • MAJOR

    AHU-3 supply static deviation 0.42" w.c. above setpoint.

    TAB §6.1M-401
  • MINOR

    Zone 12 reheat valve cycling outside ±5% control band.

    TAB §8.4BAS-LOG
3 Findings · Cited14s Elapsed
Justin K Schaad, Founder and Chief Engineer of Struxen, Inc.
“A broken process with AI is just a faster broken process.”

Justin K Schaad

Founder & Chief Engineer, Struxen, Inc.

Read Justin’s full story

Request Access

Ten questions, three minutes.

Tell us about your work and we’ll get you set up.

Pricing is two components: $500 per month for your organization — flat, with every Struxen agent and unlimited users included — plus per-project Compute Credits sized to each project’s dollar value. Apply below and we’ll be in touch.

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What’s your role?

  • General Contractor
  • Specialty Contractor
  • Designer
  • Owner
~ 3 minutes totalContinue →

Things worth knowing before you apply.

Those store documents. Struxen reads them. They are the system of record. Struxen is the AI Quality Control layer above them.

Commercial, institutional, healthcare, higher-ed, mission-critical, $20M–$250M project value at GCs delivering $150M–$2B annually.

Per-finding source citation, hallucination-prevention via retrieval-grounded generation. During onboarding, Struxen is run on a real bid package so you can verify the output before going live.

Two components. $500 per month for your organization — flat, regardless of team size, with every Struxen agent and unlimited users included. Plus per-project Compute Credits sized to each project's dollar value at creation; bigger jobs use more, smaller jobs use less. Top-up available anytime.

Your data stays yours — we never train AI models on your documents. Encrypted at rest with per-tenant keys, isolated per account, hosted on AWS. Audit log retained for the project lifetime.

Click Request Access. The wizard takes about three minutes. Every application is reviewed and we'll follow up with an invite link or a question.