Civil & Structural Expert Witness Consultancy

Engineering Expert Witness Services for Courts, Lawyers & Insurers

Pack Engineering is a specialised civil and structural expert witness consultancy delivering precise, defensible technical evidence and bespoke advanced engineering design across Sydney, Brisbane and Canberra.

100+
Expert reports
12+
Conclaves
3
Supreme Courts (NSW, VIC, WA)
3
Offices
A structural engineer's desk with a hard-hat, open calculation report, technical drawings and a finite element analysis mesh on a laptop screen.

Services

Expert reporting and advanced engineering, built for scrutiny

Our work leads with expert witness reporting and bespoke complex design. We prepare reports for conclaves, mediations and court appearances, and apply 3D modelling, Finite Element Analysis and experience with non-standard construction materials to resolve technically demanding disputes.

CVs and rates available upon request.

A 3D finite element analysis (FEA) model of a bolt, displaying stress distribution through a color-coded triangular mesh.
01

Structural Engineering Expert Witness Services

Comprehensive expert reporting, conclaves and court appearances for complex structural disputes across industrial, residential and commercial sectors.

02

Civil Engineering Expert Witness Services

Specialised technical testimony and forensic reporting for civil infrastructure projects, providing authoritative insights for legal proceedings.

03

Bespoke Structural Design & Advanced Analysis

High-end engineering design using 3D modelling and Finite Element Analysis (FEA) for complex projects requiring non-standard construction solutions.

04

Forensic Engineering & Structural Inspections

Detailed investigation and analysis of structural failures or defects to determine root causes and provide evidence-based conclusions for stakeholders.

05

Construction & Project Management Expert Services

Expert advisory and testimony regarding construction methodologies, project management standards and industry best practices in dispute resolution.

06

Statistical Analysis & Litigation Support

Specialised statistical expert services to critique data sampling and provide quantitative analysis to support or challenge engineering evidence.

People

The experts who deliver the testimony

Our team brings depth across steel, concrete, timber, geotechnical, foundations, retaining walls, Finite Element Analysis and material testing. CVs are available upon request.

A professional headshot of a smiling man with brown hair and blue eyes, wearing a white shirt and a dark blazer against a plain white background.

Lonnie Pack

Founding Director — Sydney

Expert witness since 2017 with 50+ cases and 18 years' civil and structural engineering experience. Has appeared in the Supreme Court of NSW and the Supreme Court of Victoria.

Evan McDowell

Engineer — Civil & Structural

Brings a civil and structural engineering background to expert reporting and analysis, supporting investigations across structural, geotechnical and material assessment work.

References & Reviews

Trusted in the courtroom and by clients

Judicial and client references demonstrating courtroom credibility. Professional references available upon request.

5.0
★★★★★
Based on verified review
★★★★★

A five-star review from a verified client.

James Weidmann

Client review

“I found Mr Pack to be a most impressive witness. He gave his evidence calmly and clearly.”

Judicial Comment

March 2018, Judgement in Proceedings 2015/120806

“Mr Pack's unchallenged evidence should be accepted in its entirety.”

Expert Determination

May 2021 (confidential)

“It was a pleasure working with you — no doubt we will work together again in future.”

Client

October 2022 (confidential)

The Australian Guidebook for Structural Engineers textbook in a clean flat-lay beside an engineering pencil and a folded structural drawing.

Publications

Authored technical literature

Australian Guidebook for Structural Engineers — a 525-page textbook, first edition authored by Lonnie Pack, with a second-edition contribution by Brian Kinnear updating the concrete chapter.

  • Actions: wind, seismic, dead and live loads
  • Steel, concrete, timber and geotechnical design
  • Worked examples and CAD details
AS 4100:2020 AS 3600:2018 AS 1170.4:2024 AS 1720.1:2010

About

A consultancy built around specialised expert evidence

Pack Engineering was founded by Lonnie Pack in 2021 in response to demand for specialised structural expert witness services. Since then the firm has delivered 100+ expert reports, participated in 12+ conclaves and mediations, and appeared in the Supreme Courts of NSW, Victoria and Western Australia.

With offices in Sydney, Brisbane and Canberra, our experts span structural engineering, construction, project management and statistics. We work with firms such as Colin Biggers & Paisley, with a consistent focus on compliance with Australian Standards and relevant international codes.

100+
Reports
12+
Conclaves
3
Offices
Interior of a quiet professional engineering consultancy office with dual monitors showing structural analysis software, a bookshelf of standards, and a city skyline through a window.

Contact

Request a Consultation

Available by appointment. Get in touch to discuss your matter and the right engagement for it.

emailingadmin@packengineering.com.au

Inspection & Assessment

Site investigation and condition assessment.

Expert Witness Report

Court-ready expert reporting and analysis.

Conclave & Case Management Conference

Expert conclaves, mediations and case management support.

Servicing Sydney, Brisbane and Canberra. CVs and rates available upon request.