Aluminum or steel is a tradeoff, not a winner
The aluminum vs steel trailer question comes down to four things: weight, rust, repairs, and price. Steel trailers usually cost less up front and are easier to get welded. Aluminum trailers weigh less empty and do not rust the way bare steel does. Both can be built strong. Both need care. The right one depends on what you haul, how often you pull it, where you park it, and how long you plan to keep it.
This is a real choice on our lot. We carry aluminum gooseneck stock trailers from Wilson and Hillsboro, steel stock and flatbed trailers from Circle D, steel flatbed, dump, and utility trailers from H&W, and steel Iron Bull dump trailers. Even our truck flatbeds come in both, with aluminum and steel beds from Hillsboro.
We will not tell you one metal is always better. We will show you the actual trailers, the plates, and the prices so you can decide.
Aluminum vs steel trailers at a glance
| Decision point | Aluminum trailer | Steel trailer |
|---|---|---|
| Empty weight | Lighter, which can leave more of the GVWR for cargo | Heavier for the same size and job |
| Rust and corrosion | Does not rust, but salt, urine, and manure can still corrode it | Rusts where paint or coating is chipped |
| Upkeep | Wash often, clean under mats, rinse after road salt | Wash, watch for chips, touch up paint |
| Repairs | Needs a shop set up for aluminum welding | Most welding shops can work on it |
| Price direction | Usually higher up front | Usually lower up front |
| Common on our lot | Wilson and Hillsboro stock, all-aluminum enclosed | Flatbeds, dumps, utility, Circle D stock |
These are general tradeoffs. Design, frame size, floor, axles, and how the trailer is used matter as much as the metal.
Aluminum vs steel trailer weight
Every pound the trailer weighs empty is a pound of its rating you cannot use for cattle, hay, or equipment. That is the main reason people pay more for aluminum. Aluminum construction is the lightweight side of an aluminum vs steel trailer. On a long trip, that lower empty weight can leave more of the tow vehicle’s payload capacity for the load. Read the GVWR and the empty weight before you treat that as a number. A lighter trailer can be easier on your truck over a long pull to the sale barn.
Do not assume the savings, though. Compare the two actual trailers you are looking at. Read the GVWR on each certification label and get the real empty weight. Then do the math in our trailer GVWR vs payload guide. A heavier steel trailer with a higher GVWR can still carry more than a lighter aluminum one with a lower rating.
Your truck still has to be rated for the loaded trailer. The hitch still has to match the trailer. If the hitch type is an open question, read bumper pull vs gooseneck trailers next.
Rust and corrosion: neither metal gets a pass
Steel rusts once water reaches bare metal. It does not have aluminum’s corrosion resistance. Gravel chips, scraped gates, and worn floors are where it starts. Catch it early. Sand the spot, let it dry, and touch it up with rust-proof paint.
Aluminum does not rust, but it is not maintenance free. Featherlite, which builds aluminum trailers, warns that horse urine and manure can corrode aluminum floors. It also tells owners to wash the whole trailer right after exposure to road salt and deicer. If you haul livestock, pull the mats and clean under them. If you pull through winter, rinse the trailer when you get home.
Either way, a trailer parked dirty and wet wears out faster. Washing is the cheapest repair you will ever make.
Strength and repairs
A well-built aluminum trailer and a well-built steel trailer can both carry their rated load. Strength comes from the design, not just the metal. Read the GVWR and axle ratings instead of judging by the material.
Repairs are a real difference. Steel is the metal most welding shops work with every day. Aluminum takes different equipment and experience, so fewer shops do it well. Ask where the trailer will be fixed before you buy it.
That question has an easy answer here. Wareing Carl’s Trailer Sales is an authorized Wilson Gooseneck and Semi Trailer repair center, and our trailer service and repair shop works on the trailers we sell.
Price: what the difference looked like on our lot
Aluminum usually costs more. Here is a real example. When we checked our listings in October 2026, new 7′ x 24′ aluminum Wilson gooseneck stock trailers were listed from $30,750 to $34,350. A new 7’6″ x 24′ aluminum Hillsboro was listed at $32,250. A new 6’8″ x 24′ Circle D gooseneck stock trailer, from a steel trailer builder, was listed at $19,100.
Those trailers differ in width, compartments, and features, so treat that as a direction, not a quote. Prices and inventory change. Check the current trailer inventory for today’s numbers, and weigh the higher price against how long you plan to keep the trailer.
Which metal fits which trailer?
Stock and horse trailers
This is where the choice comes up most. Aluminum suits owners who haul often and far, and who will keep up with washing. Steel suits owners who want the lower price and haul shorter distances. Compare both on our stock trailers and horse trailers pages.
Flatbed, dump, and utility trailers
Most of the flatbed, dump, and utility trailers on our lot are steel, from builders like H&W, Circle D, and Iron Bull. If you are weighing an aluminum vs steel utility trailer for ranch work, steel is what most of our utility trailers are made of. Gravel, skid steers, and equipment are hard on a deck, and steel is simple to repair after a rough season. See the flatbed trailers and dump trailers pages.
Enclosed trailers
Our new E-Z Hauler enclosed trailers are listed as all-aluminum builds. If you pull an enclosed trailer behind a half-ton or an SUV, lower empty weight helps. See enclosed trailers.
Used trailers
On a used steel trailer, look for rust at welds, crossmembers, and the floor. On a used aluminum trailer, look for cracks near welds, corrosion under mats, and loose rivets. Browse used trailers and ask us to walk it with you.
Questions to answer before you pick
- What do you haul, and how heavy is a full load?
- How many miles a year will the trailer travel?
- Will it see road salt, or sit outside year round?
- Will you wash it after every livestock haul?
- What is your truck’s tow rating and payload?
- Where will you get it repaired if a gate or crossmember gets bent?
- How long do you plan to keep it?
The metal is not the whole trailer. Aluminum construction is the lightweight path, and that can change payload capacity once you read the GVWR. Corrosion resistance is real on aluminum, and corrosion still shows up if urine or road salt sits. Tires wear on their own. Our trailer tire guide covers how long trailer tires last. The hitch still has to match, bumper-pull or gooseneck. On the highway, a lighter trailer can mean less strain on the tow vehicle. Durability still comes from the build, the wash maintenance, and where you get it repaired. The right trailer is the one whose material, price, and repair plan match the work. The safety check is the truck’s tow rating and the trailer’s GVWR.
Aluminum vs steel trailer FAQ
Are aluminum trailers better than steel trailers?
Not always. Aluminum weighs less empty and does not rust, but it usually costs more and needs a shop that can weld aluminum. Steel usually costs less and is easier to repair, but it needs paint touch-ups to keep rust away. What you haul and how you use the trailer decide the better choice.
Do aluminum trailers rust?
Aluminum does not rust like steel, but it can corrode. Featherlite warns that urine and manure can corrode aluminum floors and recommends washing the trailer right after it is exposed to road salt or deicer.
What are the downsides of an aluminum trailer?
The main ones are price and repairs. Aluminum trailers usually cost more up front, and fewer shops can weld aluminum well. Aluminum can corrode if urine, manure, or road salt sits on it, so it needs regular washing.
Do aluminum trailers last longer than steel trailers?
They can, because aluminum will not rust out the way neglected steel does. Care matters more than the metal, though. A steel trailer that is washed and touched up can last a long time, and an aluminum trailer that sits dirty can still corrode.
Is an aluminum trailer worth the extra cost?
It can be if you haul often, pull long distances, or plan to keep the trailer a long time. If you haul a few times a year close to home, a steel trailer may make more sense. In October 2026, new aluminum 24-foot gooseneck stock trailers on our lot were listed well above a new 24-foot Circle D, so compare the actual trailers.
Can I haul more with an aluminum trailer?
Only if the numbers say so. Payload is the trailer’s GVWR minus its actual empty weight. A lighter trailer leaves more room for cargo only when the GVWR is the same or higher. Check the label on each trailer and weigh it empty.
Which is easier to repair, steel or aluminum?
Steel. Most welding shops work with steel. Aluminum repairs need different equipment and experience. Wareing Carl’s Trailer Sales is an authorized Wilson Gooseneck and Semi Trailer repair center in Belle Fourche.
Does Wareing Carl’s Trailer Sales sell both steel and aluminum trailers?
Yes. We carry aluminum stock trailers from Wilson and Hillsboro, steel trailers from Circle D, H&W, and Iron Bull, all-aluminum E-Z Hauler enclosed trailers, and aluminum or steel truck flatbeds.
Compare aluminum and steel on one lot
Wareing Carl’s Trailer Sales, 10958 US HWY 212, Belle Fourche, SD 57717. Customers come from Spearfish, Sturgis, Rapid City, and nearby ranches.