Big O's Trailers is a family-run trailer dealership with over 40 years of experience. We’ve seen the industry evolve firsthand and use that knowledge to help customers choose trailers that are built to last. We stay up to date on the latest products and innovations, carefully researching and selecting top-quality manufacturers to ensure you get the best value and performance.

Our current business hours are:

• Monday - Friday: 8:00 AM - 5:00 PM
• Saturday: 8:00 AM - 12:00 PM
• Sunday: Closed

We recommend calling ahead if you're traveling a long distance to ensure the trailer you're interested in is available.

We carry one of Wisconsin's largest selections of trailers, including:

• Utility Trailers
• Equipment Trailers
• Car Haulers
• Dump Trailers
• Tilt Trailers
• Enclosed Cargo Trailers
• Aluminum Trailers
• Steel Trailers
• ATV & UTV Trailers
• Motorcycle Trailers
• Gooseneck Trailers
• Deckover Trailers

We proudly offer trusted brands including Legend, Aluma, Sure-Trac, Midsota, N&N, United, Trophy, and more.

We typically do not take trade-ins. We are very selective about the trailers we sell and the quality we are willing to put our name behind.

There are a lot of different trailer brands and products on the market today, and we often find that the trailers customers are looking to trade in are brands of lesser quality that do not meet our standards for construction, durability, or resale value.

For that reason, we generally focus on selling new trailers from the quality manufacturers we know and trust.

Absolutely. We offer financing through several trusted lenders with competitive rates and flexible terms.

Whether you're buying for personal use or your business, we'll help you find a financing option that fits your budget.

Big O's Trailers is conveniently located in Portage, Wisconsin, just off I-90/I-94, making us an easy drive from Madison, Milwaukee, Wisconsin Dells, and surrounding areas.

Since 1985, we've helped thousands of customers find the right trailer, not just any trailer. When you buy from Big O's, you get:

• Family-owned dealership
• Honest, knowledgeable sales staff
• Premium trailer brands
• Competitive pricing
• Full parts department
• Experienced service department
• Financing options
• We stand behind what we sell

Our goal is to help you choose the trailer that best fits your needs, not simply make a sale.

We accept:

• Cash
• Personal Checks
• Cashier's Checks
• Most Major Credit Cards
• Financing through approved lenders

If you have questions about payment options, give us a call before your visit.

We carefully select manufacturers known for quality craftsmanship and long-term durability. Many of the trailers we sell feature:

• Heavier-duty frames
• Better weld quality
• Higher-quality axles and components
• Better corrosion protection
• Premium lighting and wiring
• Superior fit and finish
• Longer warranties than many competitors

We'd rather sell a trailer that lasts for years than one that's simply the cheapest.

Both have advantages.

If you're unsure, our team can help you determine which material is best for your intended use.

GVWR (Gross Vehicle Weight Rating) is the maximum allowable weight of the trailer plus everything loaded onto it.

This includes:

• Trailer weight
• Cargo
• Equipment
• Fuel
• Accessories

Choosing the correct GVWR helps ensure safe towing and prevents overloading.

Yes!

If we don't have exactly what you're looking for, we can special order a trailer built to your specifications.

You can customize options such as:

• Trailer size
• Axle ratings
• Ramp or door style
• Interior height
• Cabinets and shelving
• E-track
• Spare tire and mount
• Toolboxes
• Tie-downs
• Color (on many models)
• And much more

We'll walk you through the available options and provide an estimated build and delivery timeline.