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Modular Office Buildings for Rent

United Rentals offers a comprehensive lineup of modular office buildings for rent. Whether you need office space, classrooms or retail space, find your next prefabricated office rental below.

For our full list of modular office buildings, view the items below. For more information about modular office buildings, visit our resource section.

modular building one restroom floorplan
Cat Class Code
923-0010

60 ft. by 24 ft. Modular Office Building, 4 Offices, 1 Restroom

  • 60 ft. by 24 ft.
  • Includes four private offices, one conference area and one restroom
  • Central heating and air conditioning
  • Pre-installed electric water heater
  • Uses: Ideal for rapidly expanding businesses that need additional office space with a restroom
Mobile office with 2 restrooms floor plan
Cat Class Code
923-0020

60 ft. by 24 ft. Modular Office Building, 4 Offices, 2 Restrooms

  • 60 ft. by 24 ft.
  • Includes four private offices, one conference area and two ADA-compliant restrooms
  • Central heating and air conditioning
  • Exterior lights for night security
  • Uses: Ideal for large or growing projects that quickly need additional on-site office space with restrooms
Mobile Office Icon
Cat Class Code
923-0030

60 ft. by 24 ft. Modular Office Building, 4 Offices

  • 60 ft. by 24 ft.
  • Includes four private offices and one conference area
  • Central heating and air conditioning
  • Fully weatherproof tested
  • Uses: Ideal for growing businesses or projects that quickly need additional on-site workspaces
Mobile Office Icon
Cat Class Code
923-0040

60 ft. by 24 ft. Modular Building, 2 Classrooms, 2 Restrooms

  • 60 ft. by 24 ft.
  • Includes two classrooms and two restrooms
  • Central heating and air conditioning
  • Pre-installed electric water heater
  • Uses: Ideal for educational spaces that require extra classrooms or administrative spaces and restrooms
Mobile Office Floor Plan GENERIC 64 ft. by 24 ft. Modular Office Building, 4 Offices, 1 Restroom
Cat Class Code
923-0050

64 ft. by 24 ft. Modular Office Building, 4 Offices, 1 Restroom

  • 64 ft. by 24 ft.
  • Includes four private offices, one conference area and one restroom
  • Central heating and air conditioning
  • Exterior lights for night security
  • Uses: Ideal for remote projects or commercial operations that require additional office spaces and a restroom
Mobile Office Icon
Cat Class Code
923-0070

64 ft. by 24 ft. Modular Office Building, 4 Offices

  • 64 ft. by 24 ft.
  • Includes four private offices and one conference area
  • Central heating and air conditioning
  • Fully weatherproof tested
  • Uses: Ideal for remote operations or commercial projects that need additional office space
Mobile Classroom Floor Plan GENERIC 68 ft. by 24 ft. Modular Office Building, 4 Offices, 1 Restroom
Cat Class Code
923-0090

68 ft. by 24 ft. Modular Office Building, 4 Offices, 1 Restroom

  • 68 ft. by 24 ft.
  • Includes four private offices, one central office area and one restroom
  • Central heating and air conditioning
  • Fully weatherproof tested
  • Uses: Ideal for commercial or industrial projects that require additional on-site offices and restrooms during renovations or construction
Mobile Office Icon
Cat Class Code
923-0110

68 ft. by 24 ft. Modular Office Building, 4 Offices

  • 68 ft. by 24 ft.
  • Includes four private offices and one conference area
  • Central heating and air conditioning
  • Fully weatherproof tested
  • Uses: Ideal for immediate use as a break room, conference room or office space in remote or commercial worksites
Mobile Classroom Floor Plan GENERIC 68 ft. by 24 ft. Modular Building, 2 Classrooms
Cat Class Code
923-0120

68 ft. by 24 ft. Modular Building, 2 Classrooms

  • 68 ft. by 24 ft.
  • Includes two separate classrooms
  • Zoned central heating and air conditioning with separate controls for each classroom
  • Horizontal sliding windows with insect screens
  • Uses: Ideal for schools, colleges or universities that temporarily need additional classrooms on-site
Mobile Office Icon
Cat Class Code
923-0150

60 ft. by 36 ft. Modular Office Building, 6 Offices, 1 Restroom

  • 60 ft. by 36 ft.
  • Includes six private offices, one conference area and one restroom
  • Central heating and air conditioning
  • Pre-installed electric water heater
  • Uses: Ideal for mobile, temporary or permanent projects that require additional office spaces and a restroom
Mobile Office Floor Plan GENERIC 60 ft. by 36 ft. Modular Office Building, 6 Offices, 2 Restrooms
Cat Class Code
923-0160

60 ft. by 36 ft. Modular Office Building, 6 Offices, 2 Restrooms

  • 60 ft. by 36 ft.
  • Includes six private offices, one conference area and two restrooms
  • Central heating and air conditioning
  • Pre-installed electric water heater
  • Uses: Ideal for large commercial or industrial projects that need immediate additional office space and two restrooms
3-plex FAST building floor plan
Cat Class Code
923-0190

Front Section, Expandable Modular Office Building

  • Front section of expandable modular commercial building
  • Includes two private offices and one central gathering space
  • Central heating and air conditioning
  • Add units as needed to accommodate your project's needs
  • Uses: Ideal for large or growing businesses and projects that need a reconfigurable and customizable solution
3-plex FAST building floor plan
Cat Class Code
923-0200

Middle Section, Expandable Modular Office Building

  • Middle section of expandable modular commercial building
  • Includes two private offices and one central gathering space
  • Central heating and air conditioning
  • Add units as needed to accommodate your project's needs
  • Uses: Ideal for large or growing businesses and projects that need a reconfigurable and customizable solution
3-plex FAST building floor plan
Cat Class Code
923-0210

Rear Section, Expandable Modular Office Building, 1 Restroom

  • Rear section of expandable modular commercial building
  • Includes two private offices, one restroom and coffee bar
  • Central heating and air conditioning
  • Add units as needed to accommodate your project's needs
  • Uses: Ideal for large or growing businesses and projects that require a tailored space solution
Resources

FAQs About Modular Office Buildings

United Rentals offers portable office buildings for various industries, including commercial, healthcare, retail, education, construction and more. Also known as prefab buildings, our modular office rentals are available with climate controls, weatherproofing, wood flooring, restrooms, water heaters and other practical features. Choose our expandable modular office buildings should you require more flexibility, as these can be easily expanded or reduced depending on your specific needs. For more information about our inventory of modular buildings for rent, contact one of our Mobile Office Experts.

Alternatively, learn more about our prefab structures in our FAQ section below.

Do you need a building permit for a modular office building?

Even though the structure is not permanent, you generally need a building permit to construct a modular building. Your structure still needs to comply with local building codes and zoning regulations. It's essential to check with your local building department to determine the specific requirements for obtaining a building permit for your project.

How long does it take for a modular office building to be built?

One of the main advantages of modular construction is that the manufacturing process can take place simultaneously with site preparation, which reduces the project timeline compared to traditional stick-built construction methods. A small, simple modular office building might be completed in as little as 2 to 3 months, while a larger, more complex project could take 6 to 12 months or more.

What are the dimensions of modular buildings?

Modular buildings come in various sizes and configurations to suit different needs and applications. Our modular buildings come in standard sizes of 60 ft. by 24 ft., 64 ft. by 24 ft., 68 ft. by 24 ft., 60 ft. by 36 ft. and custom sizing as needed. We also offer expandable modular office buildings that can easily have sections added or removed as requirements change.