A step deck exists for one reason: to carry freight that is too tall to be legal on a flatbed. That lower deck buys roughly a foot and a half of height, and because there are far fewer step decks than flatbeds, the scarcity shows up in the rate even when the freight itself is ordinary.
A single "rate per mile" hides four different things. Brokers and shippers argue about the wrong one all the time, so here is the whole stack, using the live numbers above.
| Component | Per mile | Who it belongs to |
|---|---|---|
| Line haul | — | The truck’s core revenue — driver pay, tractor, trailer, maintenance, insurance. |
| Fuel surcharge | — | Moves with the DOE average. Quoted separately in contract freight, buried inside the number in spot freight. How fuel surcharge works → |
| Carrier total | — | What actually lands on the carrier’s rate confirmation. |
| Broker margin | — | Covers coverage work, credit risk, claims exposure and the brokerage’s own cost of doing business. |
| Shipper pays | — | The all-in number, before any accessorial actually incurred on the load. |
The line haul and fuel split shown is an industry-typical approximation — roughly 78/22 at current diesel levels. On a real load it moves with the lane and the week, which is exactly why fuel is normally quoted as its own line.
Most failed bookings are not arguments about money — they are a load that physically does not fit the trailer that showed up. These are the numbers to put in a posting.
| Trailer length | 48 ft and 53 ft; typically 37–43 ft of lower deck |
| Deck heights | Upper deck ~60″, lower deck ~40″ from the ground |
| Legal load height | About 10′ on the lower deck versus 8⁄6 on a flatbed |
| Max payload | 45,000–48,000 lb |
| Ramps | Some carry them, many do not — always state whether you need them |
Commonly shipped on step deck: Construction equipment, agricultural machinery, tall industrial parts, bundled steel, crated units, HVAC and generator sets, tanks.
Benchmark rate per mile multiplied by real lane distance. Useful as a starting point for a conversation, not as a quote — direction, season and appointment requirements all move the true number.
| Lane | Distance | Carrier gets | Shipper pays |
|---|---|---|---|
| Peoria, IL → Houston, TX | 1,050 mi | — | — |
| Charlotte, NC → Kansas City, MO | 900 mi | — | — |
| Portland, OR → Salt Lake City, UT | 770 mi | — | — |
Distances are practical truck miles and will differ slightly from a car routing. Work out your own cost per mile →
| Period | What happens |
|---|---|
| Jan–Feb | Soft, tracking flatbed. |
| Mar–Jun | Strong — agricultural equipment moving ahead of planting and construction ramping up. |
| Jul–Sep | Peak, with equipment dealers and infrastructure projects both active. |
| Oct–Dec | Harvest equipment moves, then tapers into winter. |
If your load is under about 8⁄6 tall, a flatbed will carry it for less money and is easier to find. The step deck premium is worth paying only when the height genuinely requires it — or when you need ramps to drive equipment on.
Step deck postings fail on one missing number more than anything else: the height. Without it a driver cannot work out whether the load is legal on his trailer, and you will re-post the load after he tells you no. Add lower-deck length and whether ramps are required and your coverage time drops noticeably.
Measure the tallest point including the pallet, crate or skid. Eight and a half feet is the practical line where flatbed stops working and step deck begins — and being wrong about it means the truck arrives and cannot legally load.
Line haul is the number everyone negotiates. Accessorials are the number that decides whether the lane was actually profitable. LoadBoot publishes its terms rather than renegotiating them load by load, so both sides know before the truck moves.
| Accessorial | LoadBoot standard | When it bites |
|---|---|---|
| Detention | $60/hr after 2 free hours | Four hours at a dock can exceed the whole margin on a short lane. |
| Layover | $250/day | A missed appointment that pushes delivery to the next day. |
| TONU | $250 | Truck ordered, then the load is not there or does not fit. |
| Lumper | Reimbursed with receipt | Grocery and food distribution, almost every time. |
Worth knowing whichever side of the load you are on. A broker who understands the carrier’s floor covers freight faster; a shipper who understands it stops wondering why the cheapest quote keeps falling through. Against a typical all-in operating cost of $1.90 per mile for a small carrier, the current step deck benchmark leaves:
$1.90 is a working average for a one-truck operation. Fleets with newer equipment and better fuel programmes run below it; an older truck with high maintenance can sit well above. Calculate your actual number →
Rate is rarely the reason a step deck load sits. It sits because a carrier cannot tell from the posting whether the load is legal on his trailer, how long he will wait, or what he gets paid if it goes wrong. Five things fix most of that.
| Lead with the height | This is the number that determines whether a step deck is needed at all, and whether the load is legal once it is on there. Nothing else matters until height is known. |
| Give the lower-deck length you need | A 40 ft machine will not sit on a 37 ft lower deck. The footprint matters as much as the weight. |
| Say whether ramps are required | Self-propelled equipment needs ramps and many step decks do not carry them. Discovering this at the shipper costs a full day. |
| Confirm whether it tarps | A tall load that also needs a tarp is a much harder job than either one alone. |
| Give the loading method and site conditions | Soft ground, low clearance or a tight yard can rule out a trailer that would otherwise fit the freight perfectly. |
A national benchmark is an average of very different markets. Direction matters as much as distance — the same lane run the other way can price completely differently.
| Versus national | Markets |
|---|---|
| Above national | Thin-density lanes in the Mountain West and northern New England, where step decks are genuinely scarce. |
| Around national | The equipment-manufacturing belt — Illinois, Iowa, Wisconsin — and the Southeast. |
| Below national | Around large equipment-auction hubs, where step decks gather waiting for outbound freight. |
Generally when the load is taller than about 8 feet 6 inches. The step deck’s lower deck buys roughly 18 more inches of legal height.
Fewer trailers in the market and the same securement labour. The scarcity is the premium.
Not all of them. If the equipment drives on and off under its own power, the posting must say ramps are required.
Roughly 10 feet on the lower deck, keeping the total under the 13⁄6 legal limit in most states.
Usually 37 to 43 feet depending on the trailer. If your machine is longer than that, the load will not sit properly and you need a different trailer.
Yes — step deck, drop deck and lowboy-style single-drop all describe the same basic trailer with an upper and lower deck.
Yes, and carriers will take it to avoid an empty return. You may pay slightly above flatbed money for it.
Posting is free for brokers and shippers — no subscription and no per-post fee. Every carrier who can accept your load has had authority, insurance and safety checked first, every load carries live GPS, and the accessorial terms above are written down before the truck moves rather than argued about after.