Welcome to Big O's Trailer Sales in PORTAGE, WI

Delivering top-notch trailers since 1985

Find the perfect trailer at our Wisconsin trailer dealer. Find the perfect trailer at Big O's Trailers. We are conveniently located just off Interstate I90/94. Stop in today and see why we continue to grow. We are a full trailer dealership with a sales, service, and parts departments. Big O's Trailers was started in 1985 by Orland and Joanne Breunig. After Orland's death in 2003 the tradition has been carried on by his three children. Trailers have been our focal point of our business for 30 years. Whether you're a local or if you're coming from Fond du Lac, Madison or Tomah, our trailer store and repair shop is geared up to meet your business or personal hauling needs!

Our mission is to provide you with the knowledge essential in choosing a trailer to fit their needs. After the sale we are available to answer questions and provide the parts and service you will need to maintain your trailer. From bearing packs to fender repairs our service department is equipped to get you back on the road, in no time at all.

Stop in and see us at our Portage, WI trailer shop!

Just off Hwy 90/94, North of Madison and Milwaukee.

Happy Haulers
Testimonials From Our Satisfied Customers

Thank you to Leroy and Sue for making my purchase of a 2021 Aluma 7814 S tilt trailer. Talking with Leroy helped make the decision easier and Sue make the paperwork painless. Thank you again for everything that you have done for me. Gil

Gil - 4/24/2020
Salesperson: LeRoy
Unit Description: Aluma

Wayne and the crew at Big O's Trailers were amazing! Wayne walked me through all of the details of getting a new trailer for my UTV and hauling needs. He offered pertinent advice where needed and capably manged all of intricacies involved in the ordering and buying experience. The end result has been outstanding thanks to all of the crew at Big O's

Douglas - 8/17/2017

These people know their trailers. I went there and received a "trailer" education which was great. They helped me pick the correct trailer for my needs. They were good to work with and had the best price around.

William - 11/1/2017

Wayne and the crew at Big O's Trailers were amazing! Wayne walked me through all of the details of getting a new trailer for my UTV and hauling needs. He offered pertinent advice where needed and capably manged all of intricacies involved in the ordering and buying experience. The end result has been outstanding thanks to all of the crew at Big O's

Douglas - 8/17/2017