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CONTRABIM/About
3DCONSTRUCTOR, LLC

BUILT FROM
REAL-WORLD WORK.

CONTRABIM isn't a software reseller's training arm. It's twenty years of general-contractor BIM coordination, turned into a system that designers and builders can actually run.

YouTube
21K+
Experience
20 yrs
Graphisoft
#1 in NA
Foundation
CB2.0
John HallgarthFounder · 3DCONSTRUCTOR, LLC
THE FOUNDER

"I built CONTRABIM because I got tired of watching good models die in a spreadsheet."

Two decades on the general-contractor side of BIM coordination taught one lesson over and over: the gap between a beautiful model and a buildable project is workflow. Not features — workflow. The way an assembly is classified. Whether a takeoff maps to how a trade is actually bought. Whether a template adapts or quietly breaks.

CONTRABIM is that hard-won workflow, packaged. CB2.0 is the template framework built on real building science. The BRIDGE carries quantities from Archicad into Excel, organized by trade. CONTRABIM Fonts deploys firm typography system-wide in under two minutes. Every piece exists because a real project needed it.

It started as a YouTube channel — now 21,000+ practitioners strong — and grew into the first Digital Associate Partnership Graphisoft granted in North America. The mission hasn't changed: teach the system, not just the software.

Join CONTRABIM Watch on YouTube →
THE PARTNERSHIP

First Digital Associate Partner to Graphisoft in North America.

Recognition that the CONTRABIM method extends what Archicad can do on a real project — not a reseller badge, a workflow endorsement.

GRAPHISOFT
Digital Associate Partner · North America
#1
First Digital Associate Partner appointed in North America
21K+
Practitioners learning the workflow on YouTube
20yrs
GC-side BIM coordination behind every product
CB2.0
A template framework grounded in building science
THE ROAD HERE

How CONTRABIM got built

  • 2005 — 2019
    Twenty years on the GC side
    BIM coordination and template development on real projects — learning where models break down between design and the field.
  • 2020
    The YouTube channel
    Sharing Archicad workflows publicly. The audience that became the CONTRABIM community started here.
  • 2023
    CB2.0 & The BRIDGE
    The template framework and QTO workflow formalized into products firms could adopt directly.
  • 2025
    Graphisoft partnership
    Named the first Digital Associate Partner to Graphisoft in North America.
  • 2026
    CONTRABIM membership launches
    Templates, training, and community in one place — at founding-member pricing.
photo · on a real jobsite
WHAT WE BELIEVE

Three things we won't compromise on

Workflow over features

A feature list doesn't ship a project. A repeatable workflow does. We teach the system.

Building science, not just geometry

Walls are assemblies with control layers — rain, air, vapor, thermal — not just lines.

Built with the community

21,000+ practitioners shape what gets made next. You're not figuring it out alone.

GET IN TOUCH

Work with CONTRABIM

Join the membership, partner with us, or just say hello.

MEMBERSHIP

Join CONTRABIM

Templates, training, and community in one membership.

  • CB2.0 + The BRIDGE
  • Full learning library
  • Founding-member pricing
See membership
PARTNERS

Partner with us

Manufacturers and institutions — get specified inside real workflows.

  • BIM-ready product content
  • Specification reach
  • Program details on request
Partner inquiry
CONTACT

Say hello

Questions, press, or careers — reach the team directly.

  • hello@contrabim.com
  • Press & mentions
  • Careers
Contact us
GRAPHISOFT · FIRST DIGITAL ASSOCIATE PARTNER · NORTH AMERICA ● 3DCONSTRUCTOR, LLC · contrabim.com