Fabrication shop floor with sparks flying under warm industrial lighting
Back to field notesApp

Inside the Smart Steel Estimator: How Fabricators.io Calculates Tonnage Without the Guesswork

Apr 22, 2026 · 11 min read · Fabricators.io Product

A walkthrough of the Smart Steel Estimator: inputs, outputs, how it handles waste factors, and how it plugs into current mill indices.

Inputs

The Estimator accepts a Tekla or Revit IFC, a spreadsheet takeoff, or a drawing set marked up with a piece list. It normalizes to a Fabricators.io project model with tonnage per member type, connection count, and finish scope.

The math it runs

Per-member waste factor, mill-index-adjusted material cost, connection labor by type, finish coverage, freight to job site, and margin. Each input is versioned; you can re-run a quote at today's mill prices in one click.

Outputs

A branded PDF quote, a per-line cost breakdown, a fabrication schedule, and a delivery window. Every quote is stored, versioned, and searchable — no more hunting for last month's number.

~ Get access

Try the platform this post is about.

Two-week pilot on your next bid package. If it doesn't move the needle, we'll haul it off ourselves.