When changes in your business create new demands for inplant space utilization, PortaFab's modular office and building products provide you with unlimited flexibility to respond quickly and cost-effectively to your needs.

Why PortaFab?

modular offices - modular office building, modular inplant offices, modular factory offices

Proven Experience

Over 40 years and millions of square feet enclosed.

office in factory, office in warehouse, modular office in warehouse, modular factory office

Nationwide Installation

Locally sourced installation from experienced, certified distributors.

modular office, modular factory office, modular warehouse office, office in warehouse

Certified Quality

Certified to ISO 9001:2015 with focus on continuing quality improvement.

modular factory office, modular office in factory, inplant office, factory office, modular warehouse office

Unmatched Selection

The most extensive product line in the industry.

modular offices, modular office for sale, modular office builder, modular offices in factory

Expert Design

In-house engineers to assist with design and specifying.

Modular office in building, modular office in plant, modular office in factory

"Quick-Ship" Program

Fast, cost-effective solutions for office space and more.

modular warehouse office

modular office construction components, modular office for warehouse, modular office for factory, inplant modular office

Construction Made Easy

Using PortaFab's modular systems, you can build virtually any type of office, room or enclosure that can be built with traditional construction materials - in less time and with fewer hassles. See how we've simplified the construction process.


modular office, modular offices

Standard "Quick-Ship" Modular Offices


5-Day “Quick-Ship” Program

Our popular "Quick-Ship" program capitalizes on our integrated modular system design and interchangeability of parts which allows us to ship 80% of our in-plant office orders within 5 days of order approval.

  • 30 Standard Sizes – from 8’ x 8’ to 20’ x 40’
  • 8’ or 9’ wall height
  • 3 Standard Colors – Grey, White & Champagne
  • Numerous door, window, HVAC and other options
quick ship modular office, fast shipping modular office

custom modular office, custom modular warehouse office, custom modular factory office

Fully Customizable Solutions


Complete Design Flexibility

In addition to our line of Standard "Quick-Ship" modular office sizes, our modular building systems can be used in a variety of custom configurations to transform all types of spaces in an unlimited number of possibilities.

Unmatched Selection

Our six modular framing systems can be combined with a wide variety of wall panels, windows, doors and other options to ensure the success of your next building project. View our entire line of pre-engineered solutions.

modular custom buildings, custom modular buildings, modular offices
modular wall system, modular walls, modular wall system for warehouse, modular wall system for factory

Professional Turnkey Service


Design, Installation & More

Architects, contractors, and end customers benefit from our decades of design and engineering experience. We are experts in the design of modular offices, cleanrooms and controlled environments.

  • Design - PortaFab's in-house engineering team works in coordination with our nationwide network of experienced distributors to provide the design and specifying assistance required for your project.
  • Installation - With the industry's most talented and experienced network of distributors, we can help match your project to the best partner for your project. 
modular inplant office, modular inplant offices
modular office diagram, modular office, modular offices

10 Reasons to Choose PortaFab Modular Construction Over Traditional Construction

Learn More

modular system, modular wall system, modular offices, modular office

Modular Office & Building Photo Gallery


This website use cookies to improve our products and your experience on our website by evaluating the use of our website, products and services, to personalize content, to provide social media features and to analyze our traffic. We also share information about your use of our website with our social media, advertising and analytics service providers. By agreeing to the use of cookies on our website, you direct us to disclose your personal information to these service providers for those purposes.

For more information, please see our Privacy Policy and, if you are a California resident, our Privacy Notice to California Residents.