modular building systems
modular buildings About Us|Partners|Careers modular buildings
 
  •  
    Modular Buildings
    Instantly create clean, comfortable work space anywhere, anytime.
    In-Plant Offices & Buildings, Clean Rooms, Machine Enclosures and More...
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    Modular Walls
    Divide space in a fraction of the time typically required for conventional construction
    Factory & Office Wall Partitions, Tall Walls, Sound Barriers and More...
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    Prefabricated
    Buildings
    Strength and durability in a custom-designed structure
    Guard Booths & Buildings, Toll Booths, Equipment Enclosures, Control Rooms, Pulpits and More...
  •  
    Prefabricated
    Ballistic- Rated Buildings
    Ballistic protection from UL752 Level 1 through NIJ IV
    High Security Guard Booths & Buildings, Equipment Enclosures and More...
  •  
    Mezzanines
    Strength, durability and code compliance are standard
    Storage, Equipment & Work Platforms, Fall Protection Platforms, Catwalks and More...
  •  
    Prefabricated
    Towers
    Anywhere in the world, we enhance your point of view
    Guard, Range & Observation Towers, Viewing Platforms and More...
  •  
    Prefabricated
    Shelters
    High quality, durable shelters for people and equipment
    Smoking, Turnstile and Equipment Shelters, Vestibules, Walkways, Stair Enclosures and More...
  • Modular Buildings
  • Modular Walls
  • Prefabricated Buildings
  • Prefabricated Ballistic Buildings
  • Mezzanines
  • Prefabricated Towers
  • Prefabricated Shelters
  • Modular Buildings
     
  • Modular Walls
     
  • Prefabricated Buildings
     
  • Prefabricated Ballistic Buildings
     
  • Mezzanines
     
  • Prefabricated Towers
     
  • Prefabricated Shelters
     

Welcome to
PORTA-KING BUILDING SYSTEMS.

We are your one stop source for highly innovative prefabricated buildings. Since 1969 our modular buildings, mezzanines, portable buildings, toll booths and smoking shelters have been used for thousands of unique construction applications across North America and throughout the world. We provide our customers with cost effective, highly functional, easy to assemble alternatives to conventional construction.

Today, Porta-King manufactures five different types of prefabricated buildings and shelter systems that include high-level ballistic rated construction. We manufacture eight different types of modular wall systems, structural steel mezzanines and towers.

Porta-King Building Systems offers more prefabricated and modular buildings than any other manufacturer. All of these products have attributes that support the efforts of those companies and organizations that want to incorporate a sustainable design philosophy into their business. In addition, we can support various elements toward securing LEED certification for both new and retrofit construction projects with all of the products we manufacture.

We believe the key to our success has been our ability, and willingness, to adapt to new industry trends. Since our inception we have responded to our customers by introducing many "industry firsts" to address these developing trends in the modular and prefabricated construction industry. This includes new products, modification to existing products which includes adaptation to address new building and energy code requirements. Many of these changes have resulted in new patents.

This website includes images and other descriptive information about the wide range of prefabricated buildings and structures we have designed and manufactured for our customers including:

We hope you will find this information useful in determining the best solution for your particular construction application. You can also call us anytime at 1-800-284-5346 to personally discuss your project with a member of our experienced customer service team.

Find more details on our Design Resource Center website.

Porta-King is headquartered in St. Louis, Missouri, and has eleven regional sales offices throughout the United States. We operate two production facilities in St. Louis and Montgomery City, Missouri with over 180,000 square feet of combined manufacturing space.

Design Resource Center

Design Resource Center

GSA Contract Holder

State Department

Porta-King Building Systems has received confirmation of our registration with the United States Department of State as a manufacturer and exporter of defense articles as required by the Arms Export Control Act (AECA) and the International Traffic in Arms Regulations (ITAR Part 122).