Structural BIM services

Get Every Beam Right Before a Dollar Is Spent

Structure is built first and hardest to change. We model, coordinate and check every member before steel is ordered or concrete poured, so nothing is redone.

See What Structural Changes Cost You
  • Every member checkedSized before anything is built.
  • Coordinated with every tradeSleeves set before the pour.
  • Fabrication-ready detailSteel and rebar from the model.
  • Checked before releaseSenior review on every set.
  • Two concrete towers with cantilevered slabs on a shared podiumMulti-tower structures
  • Concrete frames of twin high-rise towers on a shared podiumHigh-rise frame
  • Concrete structure coordinated with fire protection and mechanical servicesStructure and MEP
  • Reinforced concrete frame under construction with column starter barsUnder construction
  • 20+Years’ experience
  • 1,500+Projects supported
  • 350+Engineering professionals
  • 80%Repeat clients

Where margin leaks

Structural Errors Cost Margin

Once structure is poured or erected, each error means demolition, refabrication or delay on site.

  • Late Structural Changes

    Where margin leaks
    A member moved after steel is ordered or concrete poured means rework and lost weeks.
    What we fix
    Every member sized, placed and checked in the model before anything is ordered or poured.

  • Missed Openings

    Where margin leaks
    Openings missed in slabs and beams mean core drilling, engineer reviews and delays.
    What we fix
    Openings and sleeves coordinated with MEP and placed in the model before the pour.

  • Fabrication Mismatches

    Where margin leaks
    Steel and rebar built from inconsistent drawings arrive wrong and stop erection.
    What we fix
    Fabrication-ready models and drawings that match the coordinated structure.

  • Wrong Quantities

    Where margin leaks
    Inaccurate take-offs lead to over-ordering, shortages and disputed costs.
    What we fix
    Material quantities taken straight from the model, accurate and up to date.
L-shaped concrete frame of a mid-rise building delivered from a coordinated structural model

What we deliver

Structural Models Your Teams Can Build From

  • Structural BIM Models

    Concrete, steel and timber frames, LOD 100 to 500.

  • Multi-Discipline Coordination

    Structure coordinated with architecture and MEP, including openings and sleeves.

  • Structural Construction Drawings

    Plans, sections, framing and details generated from the model.

  • Rebar and Steel Detailing

    Reinforcement and connection detail ready for fabrication.

  • Quantities and Take-offs

    Concrete, steel and rebar quantities that stay in sync.

  • As-Built Models

    A verified record of the built structure, for operations.

  • We work in
  • Autodesk Revit
  • Navisworks
  • Tekla Structures
  • Your templates and standards

Level of development

The More We Detail, the Less You Rework

Commit structure too early or too loosely and the cost shows up as redesign, RFIs and rework on site.

  1. Stage
  2. LOD 100Concept
  3. LOD 200Schematic Design
  4. LOD 300Detailed Design
  5. LOD 350/400Build-Ready
  6. LOD 500As-Built

Cost to change a decision

$

Low

$$

Moderate

$$$

High

$$$$

Very high

$$$$$

Highest

Confidence in the model

Indicative

Approximate

Coordinated

Build-ready

Verified

Decide early, while change is cheap. Build from a model you can trust.

  1. Structural model at LOD 100: simple massing block
    LOD 100

    Concept

    Early Vision

    owners & developers

    Confirm structural feasibility before detailed engineering starts.

    What we model
    Conceptual massing, preliminary grids, core locations and load paths.
    What it protects
    Avoids fundamental redesign later
  2. Structural model at LOD 200: approximate wall and core elements
    LOD 200

    Schematic Design

    Early Design

    architects & structural engineers

    Align structure with architecture and MEP at schematic stage.

    What we model
    Preliminary framing, approximate beam and column sizes, slabs and cores.
    What it protects
    Realistic early cost estimates
  3. Structural model at LOD 300: accurately sized steel members
    LOD 300

    Detailed Design

    Accurate & Coordinated

    Where most margin is protected

    Typical for construction documents

    structural engineers & general contractors

    Issue construction documents that hold up to review and pricing.

    What we model
    Exact sizes and placement of beams, columns, slabs, walls and foundations.
    What it protects
    Fewer RFIs, reliable take-offs
  4. Structural model at LOD 350/400: steel connection with base plates and anchors
    LOD 350/400

    Build-Ready

    Fabrication Precision

    fabricators & general contractors

    Hand fabricators and erectors a model they can build from.

    What we model
    Connections, reinforcement, embeds, anchors, openings, tolerances and sequencing.
    What it protects
    Faster approvals, less site rework
  5. Structural model at LOD 500: as-built column on its foundation
    LOD 500

    As-Built

    Verified Digital Twin

    owners & facility managers

    Renovate and assess the structure from a verified record.

    What we model
    Confirmed geometry, actual member sizes, connection updates and field changes.
    What it protects
    Reliable records for safe renovations

Not sure which LOD your program needs?

A senior engineer will tell you, and what each choice costs, in your Margin Assessment.

How it works

From Design to Fabrication

Every member is modeled and checked before steel or concrete is ordered.

  1. 01

    Share Documents

    Send drawings, models and specs. We confirm scope, deliverables and dates in writing.

  2. 02

    Model, Coordinate

    Members and openings are coordinated with every trade through clash detection.

  3. 03

    Check and Release

    Senior engineer review to AISC 360, ACI 318, AS 4100 and AS 3600 before any release.

  4. 04

    Construction Support

    Fast RFI answers and model updates through installation, so crews avoid field rework.

How Much Margin Is Structural Rework Quietly Costing You?

A two-minute Margin Assessment shows where your programs leak, in dollars, and what getting structure right first could save.

Request a Margin Assessment

Confidential. No commitment.

What clients ask first

Structural BIM: Common Questions

Straight answers from our engineering team. If your question isn’t here, ask us directly.

Ask a senior engineer An engineer replies within one business day.
What does your structural BIM include?

3D models of the structural frame in concrete, steel or timber, coordinated with architecture and MEP, with drawings, quantities and as-built models, at LOD 100 to 500.

Which codes do you follow, and who is responsible for the design?

AISC 360 and ACI 318 for US projects; AS 4100 and AS 3600 for Australian projects. Design responsibility stays with your engineer of record, who reviews and seals the work. Bimgraphix does not stamp drawings; we answer for every sheet matching your design inputs, and any gap is raised as an RFI, never guessed.

How do you make sure the model is right?

Every member is modeled from the engineering design, openings and embeds are coordinated with MEP, and the model is senior-reviewed before release.

How are fees and schedules set, and can you handle large programs?

Fees and delivery dates are fixed in a written proposal from your scope, priced per model or per phase, before any work starts. Large programs are released by level or zone, with the team sized to your schedule. Revision rounds are agreed up front, and anything outside scope is quoted before we do it.

How do you protect our drawings, models and data?

We sign your NDA before any files are shared. Your models and drawings remain your property, exchanged through Autodesk Construction Cloud, Procore or a secure link, and access is limited to the team on your project.

Start a conversation

Built for Programs Where Precision Is Never Optional.

For over 20 years, one standard has guided every model, drawing and component. Let’s talk about where your programs are losing margin.

Start Your Margin Assessment

Or write to info@bimgraphix.com

  • Response within one business day
  • Reviewed by a senior engineer
  • Confidential