Individual modules are manufactured off or away from the project site in a factory environment. Modular factories are somewhat varied in their approach to manufacturing. However, there are many similarities in the overall modular manufacturing approach. Most factories use an outside-in approach where they fabricate the main “box” of the assembly before applying fixtures and finished on the inside. The boxes which are framed and finished to a level of completion as high as 90% in the factory, are then shipped to the project site. Once the boxes or modules arrive on site, they are assembled to create a whole building.
Permanent modular structures can often be completed in half the time it takes to build a conventional structure because fabrication is taking place off-site in the factory while simultaneously site work is being completed on-site.
See our section on How it’s Built for more information.