Guided trails
Pick a trail. Finish it able to answer the questions that matter.
The articles on this site are written to stand alone. The trails put them in order for a particular reader, add the primary sources you should read alongside them, and end each step with the question you should now be able to answer. Your progress is saved in your browser.
How the trails work
Each trail is between six and eight steps. A step names what to read — pieces on this site marked in orange, primary sources such as auditors' reports, filings and regulations in blue, and trade or industry sources in grey — then poses one question. If you can answer it without looking back, tick the step and move on. Several steps include a short exercise on your own project or portfolio; those are where the trail earns its time.
The trails cite the Modular Building Institute, McKinsey, the Terner Center and other sources wherever they are the best available reading, and say so when a source should be read with its by-line in view. Levels are a guide to assumed knowledge, not a ranking: a practitioner trail assumes you have finished Start here or know its contents.
- New to the sector, or briefing someone who is: Start here.
- Deciding whether to build something modular: the developer's trail.
- Running or funding a factory: manufacturer then lender & investor.
- Designing a programme with public money: the public buyer's trail.
- Producing analysis of your own: the analyst's trail, last.
The trails
Six trails · 43 stepsStart here: from zero to fluent in volumetric modular
Seven steps that take you from not knowing what a module is to being able to read a trade-press article, a market report and a project announcement critically. No prior construction knowledge assumed.
TRAIL 02 · PractitionerThe developer's trail: evaluating and running a first modular project
The decisions that determine whether a first modular project delivers its schedule advantage or quietly loses money are made before the factory is chosen. This trail walks them in the order they actually arise: fit, dimensions, approvals, money, factory, site.
TRAIL 03 · PractitionerThe manufacturer's trail: running a factory that survives a bad year
Katerra, Veev and Harbinger all had good lines. What they lacked was a structure that carried fixed costs through a pipeline gap. This trail is about the decisions that keep a plant open: which jurisdictions to serve, which customers to decline, what to publish, and which tier you are really in.
TRAIL 04 · PractitionerThe public buyer's trail: designing a modular programme that delivers
Public programmes are where volumetric modular most reliably works — and where it most visibly fails. The difference is not the factory. It is scope, site due diligence, contract control, wage terms and, above all, whether the buyer commits to volume a manufacturer can invest against.
TRAIL 05 · PractitionerThe lender's and investor's trail: underwriting factories and factory-built projects
Modular's binding constraint is the capital stack, and the capital stack is built by people who have mostly never seen a factory draw schedule. This trail covers what is different about lending against modules, how to read a factory's tier before its pitch deck, and why the one public filer in the sector matters.
TRAIL 06 · ExpertThe analyst's trail: building your own view of the industry
The sector runs on a small number of unaudited figures repeated until they harden into fact. This trail is a method for not doing that: source hierarchies, provenance discipline, the claims we could not source and how to test them, and how to maintain your own trackers rather than borrowing ours.
Trails in preparation
The architect's trail
Designing for manufacture and assembly from the module grid out: repetition, tolerances, connection details, chases, daylight, and the drawings a factory actually needs.
The Canadian trail
CSA A277, the provinces, CMHC's design catalogue, Build Canada Homes, and the Alberta and Quebec manufacturing bases — for anyone working the Canadian market specifically.
The building official's trail
Inspecting what you cannot see: third-party agencies, the 1200-series in practice, mate-line inspection, and what to ask before accepting an out-of-state label.