Cargo Boxes
Cargo Box vs Roof Basket
One is a suitcase, the other is a trailer bed on your roof. The load you are carrying decides, not the price.
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Buy a cargo box if the load is luggage: clothes, bedding, skis, anything that must stay dry and anything you would not leave in an unlocked car. Buy a roof basket if the load is awkward — firewood, a dirty tent, a spare wheel, a cooler, anything that does not fit in a molded shell and does not care about rain.
The two are not competing versions of the same product. A box is enclosed, lockable, weatherproof and shaped by aerodynamics, so it is quieter and cheaper to tow through the air than it looks. A basket is an open steel frame with tie-down points, so it carries things no box will take, costs a fraction as much, and is noisier and thirstier than almost anything else you can bolt to a roof.
Below: a side-by-side on the five properties that actually differ, then our picks from each camp — the box we would buy, the basket we would buy, and the cheaper version of each.
Quick picks
Tap any row to jump to the full write-up below. Scores are our editorial judgment on published specifications — not a star rating, and not a product we claim to have tested.
| # | Product | Best for | Score | Price |
|---|---|---|---|---|
| 1 |  Thule Force 3Enclosed, locked and weatherproof, in sizes from roughly 300 to 610 liters — the default if the load is luggage. | The box side of the argument | 8.4 | |
| 2 |  Yakima LoadWarriorSteel, stackable with an extension, and compatible with Yakima's bike and boat mounts — the basket to buy if you are buying one. | The basket side of the argument | 8.1 | |
| 3 |  Thule Canyon XTA steel basket with an expandable extension, built for the awkward oversized loads that are the whole reason to choose a basket. | Bulky loads that outgrow a basket | 8.1 | |
| 4 |  Mockins Rooftop Cargo BasketA budget steel basket usually bundled with a waterproof bag and net — which patches the basket's two biggest weaknesses in one purchase. | Cheapest way to try a basket | 7.7 |
Prices checked October 11, 2026. Product photographs come from Amazon and are refreshed with the prices. Affiliate disclosure.
#1 · The box side of the argument
Thule Force 3
Enclosed, locked and weatherproof, in sizes from roughly 300 to 610 liters — the default if the load is luggage.
- Type
- Hard shell box
- Sizes
- Roughly 300 to 610 liters
- Weather
- Sealed shell
- Security
- Locking
What works
- Keeps rain, road salt and spray off everything inside
- Locks, which an open basket never does
- Far quieter and more aerodynamic than an open frame
- Smooth shell means no straps to manage on every stop
What doesn’t
- Costs several times what a basket costs
- Fixed internal shape — oversized or filthy loads do not go in
- Needs somewhere to live when it is off the car
Our scoring
8.4overall
#2 · The basket side of the argument
Yakima LoadWarrior
Steel, stackable with an extension, and compatible with Yakima's bike and boat mounts — the basket to buy if you are buying one.
- Type
- Open steel basket
- Extension
- Available, stackable
- Accessories
- Takes Yakima bike and boat mounts
- Weather
- None — bring a bag
What works
- Carries loads no box will take, in any shape
- Tie-down points everywhere, so odd items can be secured properly
- Doubles as a mounting platform for other Yakima accessories
- Folds into a corner of the garage rather than needing a shelf
What doesn’t
- No weather protection and no security whatsoever
- Noticeably louder than a box at highway speed
- Every load needs straps, and every stop needs them checked
Our scoring
8.1overall
#3 · Bulky loads that outgrow a basket
Thule Canyon XT
A steel basket with an expandable extension, built for the awkward oversized loads that are the whole reason to choose a basket.
- Type
- Open steel basket
- Extension
- Expandable
- Build
- Steel
- Suits
- Bulky and irregular loads
What works
- Extends for loads that are longer than the basket
- Steel takes abuse from tools, wood and sharp-edged gear
- Very high tie-down point density
What doesn’t
- Heavy, and the weight counts toward your roof load limit
- Loud — this is the noisiest category of roof accessory
- Nothing inside is protected from anything
Our scoring
8.1overall
#4 · Cheapest way to try a basket
Mockins Rooftop Cargo Basket
A budget steel basket usually bundled with a waterproof bag and net — which patches the basket's two biggest weaknesses in one purchase.
- Type
- Open steel basket
- Usually bundled with
- Waterproof bag and net
- Floor
- Mesh
- Price
- Entry level
What works
- The bundled bag turns a basket into something weatherproof
- Cheapest route to roof capacity of any kind
- The net stops small items escaping, which open baskets otherwise do
What doesn’t
- Bundle contents vary by listing — read the box contents
- Finish and hardware are a step below the brand baskets
- Bag plus basket is still louder and thirstier than a shell
Our scoring
7.7overall
The five properties that actually differ
| Property | Cargo box | Roof basket |
|---|---|---|
| Weather | Sealed shell keeps rain and salt out | None, unless you add a bag |
| Security | Locks, and the contents are out of sight | Nothing is locked and everything is visible |
| Noise and drag | Shaped to reduce both | An open frame in clean air — the worst case |
| Load shape | Only what fits the molding | Almost anything you can strap down |
| Cost | Several hundred dollars and up | A fraction of a box |
Notice that the basket wins exactly one row, and it is the row that decides the purchase for a lot of people. If the load does not fit in a box, the box’s other four advantages are irrelevant.
The basket's real cost is noise and fuel
An open basket is a lattice of steel sitting in the fastest, cleanest air around the car. Every bar is making its own turbulence, and an empty basket drones in a way an empty box does not.
The fuel penalty follows the same logic. A box is shaped to slip through the air; a basket is shaped like a cheese grater. Consumer Reports’ measurements of rack-and-carrier fuel penalties are in our gas mileage guide, and a loaded basket sits at the unhappy end of that range.
Both problems have the same partial fix: strap a bag into the basket so the load has a surface rather than an edge, and take the basket off when the trip is over. The second one is easier with a basket than a box, because a basket stores flat.
Both count against the same roof limit
Your car has one published dynamic roof load limit, and it covers the bars, the carrier and the cargo. A steel basket is heavy — on some vehicles the basket alone eats a serious share of the allowance, which is the argument for the lighter boxes rather than against baskets as such.
Do the subtraction before you buy either: published limit, minus bars, minus carrier, equals what you can actually carry. Our roof load limits guide has the dynamic-versus-static distinction and where to find your figure.
If the answer comes out too small to be useful, the load wants to go behind the car rather than above it. That comparison is roof or hitch.
Which to buy
- Family luggage on a long highway trip: box. Quieter, drier, locked, and the fuel penalty is smaller.
- Camping with a dirty tent and firewood: basket. The load is filthy and oddly shaped, which is the basket’s whole case.
- Skis: box, specifically a long one — see cargo boxes for skis.
- One trip a year and a tight budget: basket plus a bag, or a soft bag on its own.
- Both, over time: buy the basket first. It is cheap, it stores flat, and it will tell you honestly how often you actually need roof capacity before you spend box money.
Common questions
Is a cargo box or a roof basket better?
Are roof baskets noisy?
Can you make a roof basket weatherproof?
Does a basket count toward the roof weight limit?
Sources
Not sure it fits your car?
Our vehicle pages carry the published roof load limit, the roof type by model year, and what actually mounts to it — cited, and honest about what the manufacturer does not publish.
Read next
The Best Roof Cargo Baskets
Open roof baskets — cheaper than boxes, better with awkward shapes, noisier and unprotected.
Roof Rack vs Cargo Box
Why a box needs a rack, what the full setup costs, and when a basket or bag beats both.
The Best Cargo Boxes for Skis and Snowboards
Ski-length roof boxes, how long a box your skis actually need, and which take snowboards too.
How Much Weight Can a Car Roof Rack Hold?
Dynamic versus static limits, what the figure includes, and why the rack's rating is not yours.