For structural steel detailers

Stop counting beams.
Start designing.

Boon reads your structural drawings — W-shapes, HSS, channels, plates, angles — and returns counts, linear feet, and tonnage in minutes. Detailers validate a few sections instead of counting from scratch.

Get a demo See how it works →

Validated, not vibes

95%
match against senior detailers (F1 0.90)
2–3×
takeoff capacity per estimator
90%
faster than manual takeoff
500+
projects across 30+ contractors

What Boon sees

Your structural plans, counted and weighed automatically.

Watch Boon identify every beam section, measure along centerlines, and compute tonnage — exactly the way your detailer would, only in seconds.

Steel

From plans to bid-ready quantities

Boon's steel model is built on TopoLoRA — a centerline-aware vision model that reads beam tags the way a senior detailer does. Sections, lengths, tonnage, all grouped automatically. Detailers spend their time on connections and constructibility, not on counting.

  • W-shapes, HSS, channels, angles — identified and tagged by section.
  • Linear feet measured along beam centerlines for every section.
  • Tonnage computed from section weight × length per group.
  • Plates, base plates, and connection material captured separately.
Boon AI structural steel takeoff showing beam sections grouped by size and tonnage
Beam centerlines
Section grouping

Why detailers switch

The wow moments steel detailers tell us about

  • Reads the framing plan

    Boon understands framing logic — beam tags, schedules, section callouts — not just isolated symbols.

  • Side-by-side against your last bid

    Bring a project you already estimated. Boon runs it in minutes — you compare its tonnage to yours and see the gap.

  • Multi-trade in one project

    Run steel alongside electrical and mechanical on the same drawings. One project bid, three trades, one source of truth.

  • Built for revisions

    When the framing plan revises, Boon re-extracts. You see exactly which members changed and how it affects your tonnage.

Exports cleanly to the tools your detailers already use

  • Bluebeam
  • Tekla
  • SDS/2
  • ProEst
  • CSV / Excel

Built for enterprise estimating teams

  • Your plans stay yours

    Boon does not train its models on customer drawings. Ever.

  • Every model, version-pinned

    Each AI used on your plan is tracked in MLflow with an accuracy score against real estimator markups.

  • Encrypted, role-scoped

    AES-256 at rest, TLS 1.2+ in transit. Per-project access controls and full audit logs.

  • SOC 2 Type II in progress

    Under continuous monitoring with Vanta. GDPR and CCPA aligned.

Bring a plan. Leave with a takeoff.

Send us one set of structural drawings. We'll run it through Boon live and you'll see beam counts and tonnage in minutes — yours to keep.

Book a demo