Tall Modular Building System

Tall Modular Building System

Standardized, Structural, Scaleable, Modular Building System

We are proud to announce that the standardized modular building system we have been developing for the past three years is now available.


The VectorBloc modular construction system is based on a cast steel connector, analogous to the ISO corners developed in the 50’s by Malcolm McLean for building ocean freight containers. However, unlike the single-purpose ISO corner, VectorBloc has multiple features which make it ideal for the fabrication of offsite-completed modules which stack and bolt together to create fully-braced buildings of almost any conceivable shape.

Following its Q2 2014 introduction to a select group, the VectorBloc system has been endorsed by leaders in the modular and steel fabrication industries, while applications have been found in the offsite construction of data centers, energy projects and chemical facilities.

Q1 2015 VectorBloc was exhibited at the World of Modular convention in Las Vegas and garnered attention from delegates from around the world.

In Q2 2015 JMC Steel Group, the  largest producer of tubular goods in the Americas came on board as an investor and technical advisor (see press release). 

In Q4 2015 our module chassis plant in Harrow Ontario came on line together with high-production shell-molding tooling and machining fixtures with a capacity of 3,800 VectorBlocs / month, enough to build ~250,000 sf / 25,000 sqm of modules. VectorBloc's chassis plant is the first facility in the world to convert steel coil in to modular buildings under one roof. Chassis can be shipped flat packed or fully assembled.

Starting in Q4 2015 VectorJig precision module assembly fixtures are available to VectorBloc licensees allowing customers to manufacture module chassis in their plants. The VectoRig halo and VectorSight safety line and surveying system will be on the market in Q1 2016.

Q4 2015 we completed a 4-story / 8 module test stack in the yard of the Atlas Tube Harrow plant. See link to presentation at right.

In Q1 2016 production of modules for a 140-unit residential building began in the plant of our first licensee Connexio, located in Windsor, Ontario, North America's manufacturing heartland.

The VectorBloc Standardized Modular Building System actually consists of 7 interrelated groups of products and services:

  • VectorBloc: A family of cast-steel connectors that facilitate the efficient design and assembly of volumetric and panelized modular buildings
  • Vectorjig: An adjustable precision fixture which makes it quick and easy to produce accurate module frames
  • Vectorig: A quick-disconnect connector and halo which takes the time and guesswork out of level hoisting
  • Vectorsight: A system for simple, accurate in-process surveying of modular building assembly, incorporating fall-prevention barriers
  • Vectorloc: A façade sealing system featuring an extendable gasket that is activated from within the building
  • Modular Design and conversion services
  • Factory Design, factory setup, fabrication and fabrication management service
  • Coming soon: Vectorcor: A plate-clad, concrete-filled integral shearwall system providing exceptional resistance to drift
  • Coming soon: Vectorlignum: A wood-steel-wood volumetric modular connector fully compatible with Vectorbloc and used for building wood-based modular buildings

For more detail on all aspects of the Vectorbloc system, please download the presentation at the right.

Vectorbloc Q&A

To view the Vectorbloc Q&A, click here

Vectorbloc In The News

Mesh Cities Article, September 28, 2014 


JMC Steel Group Announces Investment in VectorBloc


The Fabricator Magazine covers VectorBloc, February, 2016


Becoming a licensed distributor or manufacturer

If you are interested in becoming a licensed distributor or manufacturer of structures based on the VectorBloc system, please contact Julian Bowron, President of Vector Praxis, using the address and phone numbers found in the contact section of this site.

Investing in VectorBloc

If you are interested in participating in the growth of VectorBloc and its establishment as the global standard in Modular Building Systems, please contact Julian Bowron, President of Vector Praxis, using the address and phone numbers found in the contact section of this site.

The origins of the VectorBloc Modular Construction System

When Vector Praxis was founded in 2011 we immediately began the development of a practical and comprehensive system for the construction of modular buildings. In Q1 2013 company President Julian Bowron began work in NYC on modular tower systems, then in Q3 2013 he returned to Toronto and opened the Vector Praxis design, prototyping and short-run production facility. 

A detailed study of several recent modular projects, including interviews with key players involved in both design and construction, revealed that the projects hit a glass ceiling at about 5 floors as accumulating tolerances disrupted the fit of modules and their integral interior finishes, MEP systems and facades. And other problems are common to many projects, including voids around brace frames, tedious hoisting procedures and inherently hazardous work under a suspended load.

We also noted that panelized, or “flat-pack” systems fare better in some ways, but extensive site work is required to complete the building, negating most of the advantages of modular construction. A comprehensive review of the challenges of the existing approaches led us to some fresh thinking about precision and eventually to the development of the Vectorbloc system.

From Q3 2013 to Q2 2014 the capability of the system was enhanced to address these issues, resulting in a suite of solutions capable of building factory-completed volumetric modular structures taller than 30 floors. By Q1 2015 design of the basic components of the VectorBloc system was complete, so focus shifted to the details of the precison fabrication fixtures, fixture automation, certification of the appropriate welding procedures, physical prototypes and structural scenario modelling.

Through 2015 the system was fully built and tested, resulting in the completion of the test stack and signing of agreements with our first licensee, Connexio.