Modular Building Institute

Modular Construction


Two Distinct Divisions:

  1. Permanent Modular Construction (PMC) - “PMC” is an innovative, sustainable construction delivery method utilizing offsite, lean manufacturing techniques to prefabricate single or multi-story whole building solutions in deliverable module sections.  PMC buildings are manufactured in a safe, controlled setting, can be constructed of wood, steel, or concrete. 
    PMC modules can be integrated into site built projects or stand alone as a turn-key solution and can be  delivered with MEP, fixtures and interior finishes in less time, with less waste, and higher quality control compared to projects utilizing only traditional site build construction. 

  2. Relocatable Buildings - A partially or completely assembled building that complies with applicable codes, or state regulations, and is constructed in a building manufacturing facility using a modular construction process. Relocatable modular buildings are designed to be reused or repurposed multiple times and transported to different building sites.  

Primary Benefits

  1. Streamlined construction process - in many cases occupancy occurs 50% faster than with conventional construction.
  2. Resource efficient - less labor and fewer materials wasted.
  3. Reduced environmental impact - less site damage, less material exposure and less waste in landfills.

Commercial modular buildings are non-residential structures, 60% to 90% completed "off-site" in a controlled environment, and transported and assembled at the final building site. This can comprise the entire building or be components or subassemblies of larger structures.   

Stages of Modular Construction


  1. Design approval by the end user and any regulating authorities
  2. Assembly of module components in a controlled environment
  3. Transportation of modules to a final destination
  4. Erection of modular units to form a finished building
Modular manufacturers typically produce their buildings in single-location facilities. Responding to contractor or dealer requests, they frequently operate as wholesale suppliers of modular units, with the dealer or contractor responsible for customer contact and integrating the modules into the project at the building site. 
In some cases, the manufacturer works directly with the architect or customer and provides turnkey service from the factory. Construction occurs indoors away from harsh weather conditions preventing damage to building materials and allowing builders to work in comfortable conditions.

The Process

Unique to modular construction, while modules are being assembled in a controlled off-site setting, site work is occurring at the same time. This permits earlier building occupancy and contributes to a much shorter overall construction period, reducing both financing and supervision costs. Saving even more time and money, nearly all design and engineering disciplines are part of the manufacturing process.

Also unique to modular is the ability to simultaneously construct a building's floors, walls, ceilings, rafters, and roofs. During site-built construction, walls cannot be set until floors are in position, and ceilings and rafters cannot be added until walls are erected.  On the other hand, with modern methods of construction, walls, floors, ceilings, and rafters are all built at the same time, then brought together in the same factory to form a building. This process often allows modular construction times of half that of conventional, stick-built construction.

View the modular construction process here.

Meeting High Standards

Combining traditional building techniques, quality manufacturing and third-party agencies who offer random inspections, testing, and certification services for quality control, relocatable and permanent buildings are built in strict accordance with appropriate local, state, and national regulations and codes. Due to the need to transport modules to the final site, each module must be built to independently withstand travel and installation requirements. Thus the final module-to-module assembly of independently durable components yields a final product more durable than conventional structures.

Meeting Needs Across All Industries

Modular buildings have countless uses. The five most prevalent are educational facilities, general office, construction-site, retail and healthcare. Find more information on the different markets here.

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