I39 SUPPLY

I39 SUPPLY High Volume Trailer Dealership! With A Full Parts & Service Department. When we say, “we use what we sell”, we mean it. Cheers!
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Also Stocking Portable Buildings, Hunting Blinds, YETI Coolers, and Vortex Optics Gear… And Don’t Forget About Our All-In-One Vinyl Graphics Department! At I39 SUPPLY we pride ourselves on a diverse inventory of quality products, fair prices, and friendly staff. With more than 20 years combined knowledge of operating and hauling ATVs, snowmobiles, boats, and heavy equipment, we have a wide range of experience to share. Years of firsthand experience with trailers, skid steers, compact tractors, and their various components for work and recreation give us the ability to know what works, what lasts, and what you wouldn’t think twice about in the future. We welcome you to visit our operation so you can learn more about who we are and what we do. While you help yourself to a cold beverage or nachos, we’ll gladly share some of our experiences with you. I39 SUPPLY is your WEEKEND WARRIOR WAREHOUSE.

10/07/2026

One trailer. A whole lot of customization.

This 8.5' x 18' Darkhorse Cargo was built around exactly what the customer needed—from the 30-amp electrical package and windows to recessed D-track, AC, a marine battery, and a 5,000-lb.-rated ramp door.

Whether you're hauling UTVs, a tractor, camping, or a little bit of everything, we can help build a trailer that fits the job.

Looking for something custom? Give the I39 Supply sales team a call at (608) 742-6223

10/05/2026

🔥Our Graphics Department is INSANE!!🔥

They manage to bring every logo and vision to LIFE🤩

Reach out for a quote on literally anything…not just trailers!!
I39 SUPPLY

10/05/2026

“Shouldn’t be too much going on in here.”

Pulls the hub off.

😬

That’s why trailer maintenance matters. Nate found brake pads that had come off with the hub during an inspection.

If you’re due for a trailer inspection or maintenance, don’t wait until something goes wrong.

Give Josh & Joe at I39 Supply a call! 🔧

📞 608-742-6223

Another week, another round of pickups! Thanks to everyone who stopped by I39 Supply, including Frey Construction & Home...
10/05/2026

Another week, another round of pickups! Thanks to everyone who stopped by I39 Supply, including Frey Construction & Home Improvement, LLC, to pick up their new trailers. We appreciate you choosing us and hope you enjoy the new rigs! 🤝

10/03/2026

All aluminum. Lightweight. Built to work. 💪

This H&H low-side aluminum utility trailer is an easy choice when you need to haul UTVs, equipment, or anything else that needs a little extra room to open up.

Available in 12' and 14' lengths with a 3,500 lb. axle.

Stop by I39 Supply to check one out!

This truck just got a whole lot cooler. 🥶🐻‍❄️A fresh custom wrap for Polar Bear Pressure Washing, installed by I39 Graph...
10/02/2026

This truck just got a whole lot cooler. 🥶🐻‍❄️

A fresh custom wrap for Polar Bear Pressure Washing, installed by I39 Graphics.

Ready for your own cool upgrade?

Call or Text Chris: 608-697-3935

10/01/2026

POV: It’s raining, but you’re cozy inside a Zero 4 Outdoors blind, looking out at 237 trailers in stock. 👀🌧️

Want one? Get your Zero 4 Outdoors blind at I39 Supply starting at $1,575.

09/30/2026

What makes an H&H aluminum utility trailer stand out? 👀

Alex breaks down a few of the details on this 76" x 12' rail-side aluminum utility:

• 💪 Third tongue member for added strength
• 🏁 Bifold gate that folds down into the trailer
• 🚙 2,200 lb carrying capacity
• ✨ Aluminum mag wheels
• 💡 LED lighting protected in the channel
• 🛠️ 3-year structure warranty + 5-year axle warranty

And that’s just one of the utility trailer options we have on the lot. We’ve got plenty of steel and aluminum varieties to choose from.

Stop by and check them out today!

Getting ready for sled season? ❄️We can install snowmobile tracks and ski guides to help protect your trailer floor and ...
09/29/2026

Getting ready for sled season? ❄️

We can install snowmobile tracks and ski guides to help protect your trailer floor and make loading and unloading easier.

Here's a recent install we finished up.

Want to get your trailer set up before the snow flies? Give Josh & Joe at I39 Supply a call! 🔧 📞 608-742-6223

Urso Builders recently picked up another trailer and had some kind words for us! 🙌Thank you for your business and for ta...
09/28/2026

Urso Builders recently picked up another trailer and had some kind words for us! 🙌

Thank you for your business and for taking the time to leave us a review. We really appreciate it!

Happy trailering! 🤝

Address

N6100 Johnson Road
Portage, WI
53901

Opening Hours

Monday 7:30am - 4:30pm
Tuesday 7:30am - 4:30pm
Wednesday 7:30am - 4:30pm
Thursday 7:30am - 4:30pm
Friday 7:30am - 4:30pm
Saturday 8am - 12pm

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