We’ve discussed fixed gooseneck lowboys a bit already, but what are the advantages to using this type? First, the adjustable gooseneck makes it easier to load drop decks from the rear. Second, you can re-attach the gooseneck after loading to ensure that any loaded items stay in place.
2. FIXED-NECK
Just as the name sounds, a fixed-neck lowboy is firmly attached to the trailer. This style is especially lightweight compared to the other options on the market. Just keep in mind, the fixed-style means you may have more difficulty loading items in through the front.
3. REMOVABLE GOOSENECK (RGN)

If you’re looking at an RGN trailer, you’ll have several options. First, the highlights. This style works well for when your equipment needs to be loaded by driving, rolling, or otherwise, pushing and pulling. You can also load any items from above if needed.
In this same category, you’ll find mechanically detachable and hydraulic detachable goosenecks. Mechanically-detachable goosenecks are lightweight and do not require a pony motor on hand. If you choose to go with a mechanically detachable gooseneck, you may consider foldable models, which offers the capacity to fold the deck to the ground for loading.
HYDRAULIC DETACHABLE VS. MECHANICALLY DETACHABLE
Hydraulic detachable goosenecks are easy to detach and assist in adjusting the height of the trailer. They generally require more maintenance than mechanically-detachable gooseneck because of the hydraulic system.
SUSPENSION OPTIONS FOR LOWBOY TRAILERS
As for suspension, you have several choices including hydraulic, air ride, independent, and spring ride. The spring ride is the most economical option while the hydraulic suspension provides for a smooth ride.
MAXIMUM DIMENSIONS FOR LOWBOY TRAILERS
While lowboy trailer dimensions vary according to the model you select, there is a limit. Check out the following maximum dimensions:
- Freight weight: 40,000 pounds for two axles, 80,000 pounds for anything beyond two axles
- Well height: 18 in. to 24 in (The well is the container.)
- Well length: 24 ft. to 29.6 ft
- Legal width: 8.5 ft
- Legal freight height: 11.5 ft. to 12 ft.
- Legal overall load height: 14 ft.
It’s very important that all trailers adhere to legal height, weight, length, and width maximum dimensions to comply with Federal size regulations. Even custom trailer models will have to meet these requirements.
TON CARRYING CAPACITY: 25/35 VS. 50-TON PLATFORMS
Lowboy trailers can also be categorized by their ton carrying capacity. The 25-ton lowboy can carry up to 50,000 pounds while the 35-ton lowboy has a carrying capacity of 70,000 pounds.
Keep in mind that we’re referring to the net carrying capacity. Some lowboys might be described as having a carrying capacity of 70,000 when actuality they can only haul 20,000 after the weight of the 50,000-pound trailer has been subtracted. That’s quite a difference in capacity!
25- AND 35-TON LOWBOY CARRYING CAPACITY

Our 25-ton and 35-ton lowboys include the following features:
- Straight air brakes
- Single point spring suspension
- 17.5 x 6.75 10 bolt disc wheels
- 215/75R x 17.5 tires for 25-ton models
- 255/70R x 22.5 tires for 35-ton models
- Beavertail and ramps
- Canted wide flange gooseneck
- Sealed lighting system
You can review the full list of features and specifications for our 25-35 ton lowboys here.
35- AND 50-TON LOWBOY CARRYING CAPACITY

Our Detachable Gooseneck Lowboy trailers come in 35 and 50-ton carrying capacity platforms. These lowboys are operated from a wet neck or Power Pack while control valves are easy to lower and raise the height of the gooseneck. Our 35-ton Detachable Gooseneck trailer can carry up to 70,000 lbs while the 50-ton hauls a maximum of 100,000 pounds. Either model can be purchased with a two- or three-axle design.
Here are some of the features you can look forward to with your 35- or 50-ton lowboy.
- 8.25 x 22.5 10-hole disc wheels with 255/70R22.5 tires
- Double drop feature
- Single point spring suspension (35-ton model)
- Tri-Axle spring (50-ton model)
- Optional air ride, airlift, and tri-axle suspensions
- Vapor proof lighting system
Which trailer is right for you? Check out our 35- and 50-ton lowboy trailer guide.
CONSIDER A CUSTOM-BUILT LOWBOY TRAILER
If you can’t find the exact lowboy trailer for sale that you’re looking for, go custom! A custom-built lowboy trailer can be made to suit your hauling needs. Take the heavy lifting out of equipment transportation and make hauling complex loads a breeze.
At Overbilt Trailer Company, we take pride in manufacturing custom trailers of all kinds, from lowboy trailers to flatbed trailers and more. Our custom models are expertly designed to meet your business objectives and provide a smooth ride each and every time. Contact us today to get started on designing your custom-built lowboy trailer.