Quick answer
Choose a single cab when the job is mostly load: it carries the most payload and the longest tray. Choose a dual cab when you regularly move a crew, because the back seat costs payload and tray length. The deciding sum is payload minus the tray, fit-out, tools and people you carry on a normal day. If that leaves little margin, the cab size is wrong for the work.
Key points
- Each step up in cab size trades payload and tray length for seats: single carries most, dual least.
- Published payload is usually before the tray and fit-out, so subtract both before you compare.
- On Ford's 2026 Ranger Super Duty cab-chassis, payload falls from up to 1,982 kg (single) to 1,825 kg (double) on the same 4,500 kg GVM.
- A factory GVM upgrade is now an option on some 2026 HiLux 4x4s, so check whether a bigger payload can be bought rather than borrowed from the tray.
- Two utes beat one oversized dual cab when crew and heavy load rarely travel together.
Choose a single cab when the job is mostly load: it carries the most payload and the longest tray. Choose a dual cab when you regularly move a crew, because the back seat costs payload and tray length. The deciding sum is payload minus the tray, fit-out, tools and people you carry on a normal day. If that leaves little margin, the cab size is wrong for the work.
Most comparisons stop at “dual cab is more comfortable, single cab is more practical”. That’s not a buying decision. Here’s how to make one the way a fleet manager would: from the load, not the badge.
What does cab size actually change?
Three things move together as the cab grows: seats, payload and tray length. Price and tray cost move too.
| Single cab | Extra / super cab | Dual cab | |
|---|---|---|---|
| Seats | 2 | 2 plus small rear seats | 5 |
| Payload | Highest | Middle | Lowest of the three |
| Tray length | Longest | Middle | Shortest |
| Best for | Solo operators, heavy gear, long materials | Occasional extra person | Crews, apprentices, client-facing work |
The payload effect is real, and recent figures show its size. Ford’s 2026 Ranger Super Duty cab-chassis, announced in mid-2025, is a clean example because every cab shares the same 4,500 kg GVM. Published payload is up to 1,982 kg for the single, 1,896 kg for the super cab and 1,825 kg for the double. The same chassis loses about 157 kg between the single and the double cab, the weight of the extra seats, glass, trim and a longer cab structure, before anyone climbs in.
Other brands have their own spreads, and a standard dual cab with a lower GVM may give away more. Treat the Ford numbers as a pattern, not a rule, and read the compliance plate or spec sheet for the exact variant.
Why the brochure payload isn’t your payload
Payload is GVM minus the vehicle’s kerb mass. On a cab-chassis the published figure is typically “before the tray”. Then it gets eaten from every side:
- The body. A steel tray, alloy tray, canopy or service body. Ford’s recommended fitted tray prices for the Super Duty, for example, run from about $5,966 for a double cab to $7,121 for a single in galvanised steel, because the single cab takes a longer tray. Ask about weight as well as price.
- Fit-out. Drawers, racking, toolboxes, a bull bar, a winch, a second battery.
- People. Every adult in a dual cab is payload too.
- Tools and materials. What lives in the ute daily, plus what you pick up on the way.
- Towball load. If you tow, around 10% of the trailer’s weight rides on the ute. Our towing and GCM guide shows the sum.
The five-minute sum: payload minus a normal day
Run this for each cab type you’re considering, using the spec sheet for the exact grade.
- Find the payload figure and confirm whether it’s with or without a tray.
- Subtract the body you’ll fit (get the weight from the supplier).
- Subtract the fit-out.
- Subtract people, using the number who ride on your heaviest day, at 90 kg or more each if they carry boots and bags.
- Subtract tools and typical materials.
- Whatever remains is your working margin. If it’s thin, the ute is full before it leaves the yard.
Worked example: a two-person electrical crew (illustrative)
An electrical contractor is choosing between a single cab and a dual cab, both rated with roughly the Super Duty’s published payloads. The figures below are illustrative.
| Single cab | Dual cab | |
|---|---|---|
| Payload (before tray) | 1,982 kg | 1,825 kg |
| Alloy tray with headboard | −180 kg | −150 kg |
| Fit-out: drawers, racking, ladder rack | −220 kg | −220 kg |
| People (the single seats 2: driver and one) | −180 kg | −270 kg (three on big jobs) |
| Tools and cable drums | −350 kg | −350 kg |
| Working margin | 1,052 kg | 835 kg |
Both clear the job, with a comfortable gap. The point isn’t which is bigger. It’s that the dual cab’s margin is about 200 kg tighter, and that’s before a pallet of switchboards or a cable reel gets thrown on. If the crew rarely loads that heavily, the dual cab’s third seat wins. If they regularly collect heavy stock, the single cab, or a second vehicle, may suit better.
Does a dual cab ever make sense for a load-heavy trade?
Yes, when the vehicle also carries people to site. A dual cab used as a crew bus avoids the cost of a second vehicle: one registration, one insurance policy, one finance contract. That’s why they dominate the trades fleet. Three situations favour it:
- Apprentices and crews. Three people arrive in one vehicle with their own tools.
- Client-facing work. The back seat suits a customer, an estimator or a site visit.
- One-vehicle businesses. The ute is the family car at weekends too. Be careful here: private use affects tax treatment, so talk to your accountant.
The cost is a shorter tray. Long timber, conduit and ladders overhang, so you’ll want a good ladder rack rather than a bigger tray.
When two utes beat one big dual cab
A fleet manager’s trick: split the jobs. If crew and heavy load rarely travel together, a single cab for materials plus a cheaper, lighter dual cab or a car for people can cost less than one overloaded dual cab, and downtime drops because one vehicle can cover for the other. Our how many vehicles does your business need guide walks through how to count that, and the fleet cost planner puts the numbers side by side.
If the sum says even a single cab is too tight, the answer might be a bigger vehicle, not a bigger cab. See ute or van for tradies and the light truck finance page.
Can you buy more payload instead of more ute?
Increasingly, yes. In May 2026 Toyota Australia announced a factory GVM upgrade for selected automatic 4x4 HiLux double-cab and extra-cab configurations. It adds 372 to 435 kg of payload, taking maximum payload to about 1,525 kg. It was reported at $4,000 or more on the base price, with a five-year warranty and chassis reinforcements that lift axle ratings. That’s a figure worth comparing against the price of a bigger vehicle.
Practical points before you tick that box on any ute:
- Confirm the new GVM and GCM in writing. A higher GVM doesn’t always raise GCM, so towing headroom can shrink.
- Heavy-duty utes now sit at 4.5 tonnes GVM. In NSW an ordinary class C licence covers vehicles up to that limit, but check Transport for NSW’s licence classes and your own state’s rules before handing the keys to a new hire.
- Tell your insurer. Changes to ratings and bodies should be on the policy.
What the choice means for finance
Cab size changes the cost and the paperwork, not the finance structure:
- Body and fit-out on one invoice. When the tray, canopy and racking are on the same tax invoice as the vehicle, they can often be financed together under a chattel mortgage, finance lease or hire purchase. Our vehicle fit-out finance page explains the options, and ute finance covers the vehicle itself.
- Cab-chassis means a second quote. The chassis comes from the dealer and the body from a body builder. Ask the dealer to bundle both, or line up two invoices.
- Cars vs utes for tax. The ATO’s definition of a car is a vehicle designed to carry less than one tonne and fewer than nine passengers. A ute rated for a tonne or more generally isn’t one. Whether that matters for you is a question for your accountant.
- Speed depends on paperwork. Approval and settlement can move fast when the tax invoice or quote, ID and bank statements are ready. Next-business-day settlement is possible for straightforward applications.
Wondering what your preferred ute, tray and fit-out would look like as one finance package? Check your options here. It’s a one-minute enquiry.
Pre-purchase checklist for cab type
- Write down your heaviest normal day: people, tools, materials, towing.
- Get the payload with your body fitted, not the brochure number.
- Check tray length against your longest regular load.
- Price the body and fit-out alongside the chassis, and ask for weights.
- Compare against a second vehicle option for the same money.
- Confirm GVM, GCM and licence class on the compliance plate.
- Plan the replacement date. Heavily loaded vehicles wear out sooner, which affects the replacement cycle.
Know which cab you need? Let’s work out how to pay for it.
Choosing a cab isn’t a style decision. It’s a payload sum, and plenty of business owners find that sum comes out the other way once the tray and tools are on. Once you know the cab, the next question is how to fund the ute and the body together without tying up cash you need for wages and stock.
Tell us what you’re buying and what it has to carry. The enquiry takes about a minute, and asking won’t touch your credit file, since a credit check only comes up if you decide to proceed. We won’t spray your details across a pile of lenders, so your phone stays quiet. A real person who knows utes and fit-outs reads your situation and calls you. Please fill in the form accurately, including the vehicle, body and how long you’ve been trading, so we can match the right structure first time.
Frequently asked questions
Is a single cab or dual cab better for a tradie business?
It depends on whether the work is crew-heavy or load-heavy. A solo operator or a business that sends one person with heavy gear usually gets more from a single cab's payload and tray. A business that moves two or three people and their tools to site in one vehicle usually needs the dual cab and should check the payload sum.
How much payload do you lose going from single cab to dual cab?
It varies by model. On Ford's 2026 Ranger Super Duty cab-chassis, payload before a tray is up to 1,982 kg for the single cab, 1,896 kg for the super cab and 1,825 kg for the double cab, all on a 4,500 kg GVM. Check the current figure for the exact model and grade you're buying.
Does the payload figure include the tray?
Usually not on a cab-chassis. Ford's published Super Duty cab-chassis payloads are quoted before a tray is fitted, so the tray, canopy, drawers and tools all come out of that figure. Ask the dealer for the payload with your intended body fitted.
Can I raise a ute's payload?
Sometimes. Toyota Australia announced a factory GVM upgrade in 2026 for selected automatic 4x4 HiLux double-cab and extra-cab grades, adding 372 to 435 kg of payload for a reported price from $4,000. Aftermarket upgrades also exist. Tell your insurer and lender either way.
Do I need a truck licence for a dual cab ute?
Not for ordinary utes. In NSW a standard class C car licence covers vehicles up to 4.5 tonnes GVM. Some heavy-duty utes sit right at 4.5 tonnes, so check the GVM on the compliance plate and your state's licence rules.
Can I finance a ute and its tray or canopy together?
Usually, yes. When the tray, canopy or fit-out is on the same tax invoice as the ute, it can often be financed in the same chattel mortgage, finance lease or hire purchase. Separate invoices can mean separate arrangements.
Is a dual cab ute treated as a car for tax?
It depends on carrying capacity. The ATO's car definition covers vehicles designed to carry less than one tonne and fewer than nine passengers, so a ute rated for one tonne or more is generally not a car. The exact treatment is a question for your accountant.