JBT-80

A Field Guide to a Documented Design Language

The Back Story

Juice boxes became structure.
Kids became engineers.
Kingston, 1980.

What started as play became a way of building. A logic repeated across yards, streets, and communities. Not written down — but understood.

The 3 Box System

The Jamaican box truck begins with three units:

Head — open back
Trailer — enclosed with open base channel
Base — vertical structural insert

Together, they form a complete structure.

System Rules

Rule 1 — The Cab

Conventional — The full box is left intact, extending forward as a longer front.

Cab Over Engine (COE) — The sides are cut and pushed inward, creating a compact, vertical front.

Rule 2 — Trailer + Base Connection

The trailer remains horizontal while the base connects vertically, forming the signature structure.

The system can be extended using repeated modular units.

Build Your Own JBT-80

The modular system allows you to construct your own variations using primary and secondary box units.

Start with the base three-unit system, then expand using repeated modules.