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

PROLine Products LLC

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United States
Milton, NH
PROLine Products LLC

Quality aluminum trailers, from our family to yours. Looking for that perfect trailer? Let PROLine customize one for you today.
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PROLine Products LLC has been manufacturing some of the highest quality enclosed aluminum trailers available since 2002. Every trailer is made right at our facility in Milton, New Hampshire and sold factory direct to our customers.

07/16/2026

Current build time is under 3 weeks—but that won't last long! If you've been thinking about ordering a new trailer, now's the time to get your order in.

Check out some of the recent custom builds the guys have finished up! 👇

07/14/2026

🚗INVENTORY TRAILER READY TO GO!! 🚗

Car Hauler | CRHL820LB
$15,990.00

Color: Charcoal
Size: 8′ x 20’+Beveled Corner

Standard Features
– Two 3.5k Galvanized Dexter Torflex Axle w/ EZ L**e Hubs
– 15″ Radial Tires w/ 6 Year Warranty
– 10″ NevRAdjust Electric Brakes on Both Axles
– 3/8″ OSB Walls
– 4 Recessed D-Rings
– Side Access Door w/ RV Lock
– Heavy Duty Rear Ramp Door w/ Spring Assist
– All LED Lighting (Including 5 Interior LED Dome Lights)

Installed Options
– 7’0″ Max Interior Height (Net height is less)
– 15″ Spare Tire
– Tire Wall Mount
– Ghost LED Package

View more photos here: https://nhtrailers.com/product/car-hauler-8x20-18072/

07/13/2026

⭐ Another 5-star review! ⭐

There's nothing more rewarding than hearing from returning customers. Thank you for trusting Pro Line Trailers with your second trailer and for taking the time to share your experience.

From your first conversation with our team to the day you take delivery, our goal is to build the highest-quality snowmobile trailers and provide first-class service every step of the way.

Thank you for your continued support—we truly appreciate it! 🙌

07/02/2026

In observance of Independence Day, our office will be closed July 2nd through July 4th.

We will reopen on July 6th and resume normal business hours.

We wish everyone a safe, happy, and relaxing Fourth of July weekend! ❤️🤍💙🎆

06/29/2026

When someone drives all the way from Wisconsin to New Hampshire to pick up a trailer, it means the trip is worth it!

A huge thank you to Erin for making the journey. We're honored you chose us and hope your new trailer serves you well for many years to come.

Safe travels back home and thank you for your business!

Thinking about a new trailer? Whether you're coming from down the road or across the country, we're here to help you find the right one.

06/21/2026

To the dads who can back up a trailer on the first try... and the ones still practicing 😉

Happy Father’s Day to all the hardworking fathers out there. Thank you for the long days, the lessons learned, and the dedication you bring to your families and communities every day.

We hope your day is filled with family, relaxation, and maybe even a chance to hook up the trailer and hit the road.

From everyone at Proline Products, Happy Father’s Day!

06/17/2026

INVENTORY TRAILER READY TO GO!!!

8.5′ x 18′ 9.9k GVWR Cargo Trailer| CON818HD
$17,000.00

This trailer can do a little bit of anything for you! 8′ interior width and 18′ long with extra height and a heavy duty ramp door. Has the reinforced ramp and heavy duty D-rings so can be used as a car hauler but also has the extra height to utilize as a SxS trailer!

Color: Black BOT
Size: 8′ x 18′ + 24″ V
GVWR: 9900 #

• Interior Height: Upgraded to 7’0″ (Net height is less)
• Axle(s): Two 5.2k Galvanized Dexter Torsion Axles w/ NevRAdjust Brakes
• Tires/Wheels: 15″ Radial Tires on Galvanized Wheels (Rainier ST225/75R15 LRD)
• Rear Door(s): Upgraded to Heavy Duty Rear Ramp w/ Spring Assit
• Side Door: 32″ x 68″ Side Access Door w/ RV Lock, Located: Curbside front
• Interior Finish: 3/8″ OSB Walls
• Tie Downs: Upgraded to 6 In-Floor D-Rings
• Interior Lights: Upgraded to 4 36″ Slimline LED Lights w/ switch by side door (running light circuit)
• Exterior Lights: All LED, Upgraded to Ghost LED Package
• Ventilation: Ventline Pop-Up Roof Vent
• Trailer Plug: Cold Weather 7 Way Trailer Plug
• Trailer Ball Size: 2-5/16″ Ball, 19″ to Top of Ball
• 15″ Spare Tire w/ Wall Mount
• Blackout Trim Package

Check out more photos here: https://nhtrailers.com/product/con818hd-18068/

06/09/2026

Thinking about replacing your existing trailer or need a new trailer? Our current build time is about 3.5 weeks! Check out some of the custom builds the guys have finished up recently!

06/04/2026

Another trailer headed out the door to the Midwest! This one is going to it's new home in Ohio!

This is our MOT610, a purpose built 6'x10' motorcycle trailer.
The low deck height combined w/ the 3' V -Nose provides improved aerodynamics for long hauls.

Inside the trailer you'll find three Quick Adjust Floor Rails that are welded directly to the trailer frame for tie down security and versatility.

This customer elected for the pewter color in our standard aluminum trim.

Build highlights:

* 3 Quick Adjust Floor Rails
* Added Quick Adjust Wall Rails
* Upgraded Interior Height (6'6" Max)
* Added electric brakes with 7-way plug and breakaway kit
* Rear ramp door with spring assist
* Spare tire with wall mount

05/29/2026

🛠NEW INVENTORY CONSTRUCTION TRAILER!!🛠

Contractor Trailer | CON714 w/ Cargo Doors
$13,215.00

Color: Charcoal BOT
Size: 7′ x 14′ + 2′ V

Standard Features
– Two 3.5k Galvanized Dexter Torflex Axle w/ EZ L**e Hubs
– 15″ Radial Tires w/ 6 Year Warranty
– 10″ NevRAdjust Electric Brakes on Both Axles
– 3/8″ DryMax Interior Walls
– Side Access Door w/ RV Lock
– Rear Cargo Doors
– Black Plastic Sidewall Vents
– All LED Lighting (Including 3 Interior LED Dome Lights)

Installed Options
– 7’0″ Max Interior Height
– Hard Roof Upgrade
– Blackout Trim Package
– Ghost LED Package

Check out more photos here: https://nhtrailers.com/product/contractor-trailer-con714-w-cargo-doors-17816/

Address

34 Industrial Way
Milton, NH
03851

Opening Hours

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

Telephone

+16036527337

Website

https://www.NHtrailers.com/

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