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Tri-Boro Trailer has been a top provider of office trailer and mobile storage solutions to the construction industry since 1964. We handle all types of jobs including residential, commercial, industrial, highway, and remodeling projects.

Our line of products includes a variety of 8-foot wide, 10-foot wide, and 12-foot wide mobile office trailers, ground-level office and storage containers, and custom floor plans for rental or purchase. Equipment delivery, pick up, and service are all done by in-house Tri-Boro employees, ensuring that our customers receive the best service available.


8×24 Office      8×36 Office     10×40 Office     10×50 Office      12×60 Office

8×32 Combo     8×32 Change     Storage Container    Ground Level Office


Trifecta Discounts

Our Trifecta Discount includes the rental of portable toilets, office trailers, and storage containers at a single site or location. The Trifecta allows our customers to save time, money and effort by working with one company for all purchasing, billing, and service issues.

Trifecta Discount explanation

*Discount only applies when renting all three on the same job site.

Lease any Office Trailer for 3 Months and Save

We at Tri-Boro Trailer want you to enjoy our top of the line products. Long term rental discount rates are available for all of our Mobile Office Trailers. Ask one of our Customer Service Representatives  about long term rental discount rates for more information.


Tri-Boro Trailer and Mr. John is your one-stop-shop for portable toilet, office trailer, and mobile storage solutions. 

We offer: 

  • Same day, next day, and emergency service, 24 hours a day, 7 days a week
  • Live customer service, sales and accounting departments
  • Delivery, pick up, and service by in-house Tri-Boro employees
  • Security screens and door bars for all our office trailers, both free of charge
  • A detailed quality assurance program
  • ISNetworld Safety Certified Company

We are a proud member of the Modular Building Institute (MBI) and the National Portable Storage Association (NPSA).