Best Ski and Snowboard Cargo Boxes (2026)
November 8, 2026 · 15 min read
You have a pair of 177 cm skis, a family that needs the trunk back, and a shortlist of roof boxes sorted by cubic feet. That sorting is the problem. A ski box is bought on one number, and it is not capacity: it is the longest ski it will swallow with the lid shut.
Updated — first published
Quick answer
Buy a ski box by its maximum ski length, not its cubic feet. Most adult all-mountain skis run 170 to 191 cm, so you want a box rated to at least 195 cm. The Yakima SkyBox NX XL takes 195 cm skis in 18 cubic feet; the Thule Motion 3 XXL takes 215 cm.
Yakima SkyBox NX XL
Takes 195 cm skis and opens from both sides, which covers almost every adult ski sold.
Yakima RocketBox Pro 14
The lightest box here at 40 lb, but it stops at 170 cm skis, so measure before you commit.
Thule Motion 3 XXL
Takes 215 cm skis and publishes a 220 cm interior, the longest here by a clear margin.
Who this guide is for
This is for you if you drive to the mountain a few times each winter and need skis, boards and bags out of the cabin. You know your ski length, and you would rather not learn the hard way that a 14 cubic foot box and a 177 cm ski are not friends.
Every box here needs crossbars already on your roof. A crossbar is the bar running side to side above your doors; factory rails running front to back will not take a box on their own.
This is for you if
- Your longest ski is 160 cm to 200 cm and must fit with the lid closed
- You already have crossbars and need the box that goes on them
- You park in a garage and need to know the box height before you buy
Look elsewhere if
- Your roof is already full, or your car has no roof rails at all, in which case the best hitch cargo carriers (2026) solve the same problem off the back
- You carry only soft bags and no hard gear, where a roof bag does the job
How these picks were chosen
Each box was selected on one published number: the maximum ski length its maker states, from the manufacturer’s own spec sheet or product page. Capacity, weight and size were tie-breakers.
Our selection method
- Thule’s Motion 3 spec sheet and Yakima’s SkyBox NX XL and RocketBox Pro 14 product pages were compared in November 2026.
- Maximum ski length was weighted most heavily: it is the one specification that makes a box usable or useless for the job.
- Boxes whose makers publish no maximum ski length were excluded, however large their capacity.
- Specifications come from manufacturer documentation. Cedar Buy does not physically test products — see our editorial policy.
Ski and board length fit table
The whole guide in one place: the maximum ski length each maker publishes, and the interior length behind it where one is printed. The first column of numbers decides your purchase.
| Product | Max ski length | Interior length | Best for | Link |
|---|---|---|---|---|
| Yakima SkyBox NX XLBest overall | 195 cm | Not published | Skis to 191 cm, both-side loading | Amazon → |
| Yakima RocketBox Pro 14Best value | 170 cm | Not published | Kids’ skis, boards to 159 cm | Amazon → |
| Thule Motion 3 XXLPremium | 215 cm | 220 cm | Touring skis, race skis, long boards | Amazon → |
| Thule Motion 3 XL Low | 200 cm | 202 cm | Low garages and tall SUVs | Amazon → |
| Thule Motion 3 Sport | 175 cm | 177 cm | Sharing the bars with a bike | Amazon → |
What the table does not show
Two of these boxes publish no interior length. Yakima gives a maximum ski length and an exterior size but not the usable space inside, so the 195 cm and 170 cm figures cannot be checked against a measurement. Thule publishes both.
Yakima SkyBox NX XL — Best overall
At 195 cm it clears every mainstream adult ski, and the lid opens from either side of the car, which matters when you are loading in a plowed lot with traffic on one side.
Yakima SkyBox NX XL
Best for families on 170 to 191 cm skisAn 18 cubic foot hard box rated for skis and snowboards up to 195 cm, with a lid that opens from both sides and a flat interior floor. Yakima sells it as the SkyBox NX XL; many retailers list the same SKU as the SkyBox NX 18.
Price and availability change often — check the current listing.
Check price on Amazon → Paid link.Strengths
- 195 cm covers almost every adult ski sold
- Opens from both sides of the car
- Wide 24 to 40 in crossbar spread fits most racks
Limitations
- Yakima publishes no interior length and no load limit
- At 84 in long it can foul a hatch on a short roof
Editorial opinion
Buy this one unless a specific number rules it out. The 195 cm rating is the sweet spot: shorter and lighter than the 215 cm boxes, and it still swallows a 191 cm ski. Skip it if your skis exceed 195 cm, or your garage will not take 16.5 in on top of your roof.
If your skis are 191 cm or shorter and you want to stop thinking about it, this is the one.
See it on Amazon →Yakima RocketBox Pro 14 — Best value
It is the lightest hard box here and the clearest warning in this guide: Yakima rates it to 170 cm, shorter than what most adults ski on.
Yakima RocketBox Pro 14
Best for kids’ skis and boards to 159 cmA 14 cubic foot box that installs without tools and opens from both sides. Yakima rates it for skis and snowboards up to 170 cm: right for a family whose skiers are still growing, wrong for an adult on 177 cm skis.
Price and availability change often — check the current listing.
Check price on Amazon → Paid link.Strengths
- Lightest box here at 40 lb, so one person can lift it
- Tool-free install and removal
- Short 74 in body suits a small car roof
Limitations
- 170 cm ceiling rules out most adult all-mountain skis
- 14 cu ft fills fast once boots and bags go in
Editorial opinion
Get this only after you have measured your longest ski. For a household skiing on 150 to 165 cm it is the sensible buy, and 40 lb means one person can lift it off alone. Above 170 cm it is the wrong box, and the SkyBox NX XL is the one to get instead. Our yakima cargo boxes compared (2026) guide lines up the whole range.
If the longest ski in your house is 165 cm, this is the one.
See it on Amazon →Thule Motion 3 XXL — Premium and longest
Nothing mainstream carries a longer ski. Thule rates the Motion 3 XXL to 215 cm and publishes a 220 cm interior to back it.
Thule Motion 3 XXL
Best for touring, race and powder skisA 600 litre box rated for 215 cm skis, 5 to 7 pairs, or 3 to 5 snowboards. Thule publishes an interior of 220 x 77 x 40 cm and a 165 lb load capacity. This is the XXL, not the shallower XXL Low, which gives up 15 cm of interior height.
Price and availability change often — check the current listing.
Check price on Amazon → Paid link.Strengths
- 215 cm takes touring and race skis nothing else here will
- Interior dimensions published, so the claim is checkable
- Holds 5 to 7 pairs of skis in 600 litres
Limitations
- Heaviest here at 57.2 lb, so it is a two-person lift
- 232 cm long and 45 cm tall, so check hatch and garage first
Editorial opinion
Buy it if your skis are longer than 195 cm. On the published specifications it is the most capable box here. Do not buy it for a small car: 232 cm of box on a short roof is a hatch problem and a garage problem at once.
If you ski on anything over 195 cm, this is the one.
See it on Amazon →Thule Motion 3 XL Low — For low garages
It takes a 200 cm ski in a shell only 35 cm tall, which nothing else here manages. If your garage door is the constraint, this solves it without dropping to a kids’ ski length.
Thule Motion 3 XL Low
Best for tall SUVs and low garage doorsA 400 litre box rated for 200 cm skis in a shell just 35 cm tall, with a published 202 x 74 x 30 cm interior. This is the XL Low, not the standard XL, which stands 43 cm and holds 500 litres: 100 litres traded for 8 cm of clearance.
Price and availability change often — check the current listing.
Check price on Amazon → Paid link.Strengths
- 200 cm ski rating in a 35 cm tall shell
- Lowest box here, so garage clearance stops being the issue
- Interior length of 202 cm is published
Limitations
- 30 cm interior height makes boot bags awkward to stack
- 400 litres against 500 in the standard XL
Editorial opinion
Measure your garage, then decide. If the standard boxes clear your door, buy the taller one and keep the volume. If they do not, this is the only box here with a 200 cm ski rating and no height penalty. Boot bags go in flat, not stacked.
If your garage door is the reason you have not bought a box yet, this is the one.
See it on Amazon →Thule Motion 3 Sport — Also worth a look
At 65 cm wide it leaves most of your crossbars free, so a bike can share the roof. The trade is a 175 cm ceiling and the narrowest interior here.
Thule Motion 3 Sport
Best for sharing the roof with a bikeA 300 litre box rated for 175 cm skis, with a 177 x 50 x 38 cm interior and an exterior only 65 cm wide. At 33 lb it is the lightest Motion 3, and it exists so the rest of your crossbar stays usable.
Price and availability change often — check the current listing.
Check price on Amazon → Paid link.Strengths
- 65 cm wide, so a bike rack can sit alongside
- Lightest box here at 33 lb
- Interior length of 177 cm is published
Limitations
- 175 cm ceiling, so a 177 cm ski does not fit
- 50 cm interior width holds one person’s gear, not a family’s
Editorial opinion
Buy it for the width, not the capacity. If a bike or a second carrier needs the same bars, this makes room. If the box is all your roof will carry, take the SkyBox NX XL instead, which swallows a ski 20 cm longer.
If a bike has to share the bars, this is the one.
See it on Amazon →Why ski length decides the box
Because capacity and length are close to unrelated. The Thule Motion 3 Sport holds 300 litres and stops at 175 cm; the Motion 3 XL Low holds 400 litres and takes 200 cm. A bigger number on the box does not mean a longer ski fits.
Maximum ski length, from the maker
Compare the published number to the longest ski in your household, not the average one. Yakima states 195 cm for the SkyBox NX XL and 170 cm for the RocketBox Pro 14. Allow 5 cm of margin for bindings and tip rocker.
Interior length, where it is published
Thule prints interior length for every Motion 3 size; Yakima prints none. Thule defines it as the longest usable internal distance, measured so a ski would actually fit. With both numbers you can check the ski rating; with one, you are trusting it.
Height, because your garage does not move
Measure your garage opening, then add box height to your car’s roof height. The Thule Motion 3 XXL stands 45 cm and the XL Low 35 cm, and that 10 cm is the difference between driving in and a very bad noise.
Cubic feet, which matters least
Ignore capacity until length and height are settled. Volume decides how many duffels fit around the skis, and duffels squash; skis do not.
Cold-weather latch behavior
A roof box lock is the part of your car most likely to freeze: it sits in the weather all winter and gets used twice a week. Thule’s cargo box manual tells you to clean and maintain the box carefully, particularly in the winter months, and to lubricate the locks with graphite or a similar dry lubricant.
Follow the dry part literally. Graphite is a powder, so it does not hold water in the keyway the way oil can, and trapped water is what freezes overnight in a mountain lot. Do it before the season, not once you are stuck.
The two designs differ mechanically. Thule’s Motion 3 boxes use SlideLock, which separates locking from opening, so the lid latches shut and the key only secures it. Yakima’s SkyBox NX XL and RocketBox Pro 14 use a metal handle with an SKS lock core, which can be swapped so all your Yakima gear takes one key.
Never force a frozen lock with the key. A snapped key on a Saturday morning ends the ski day before it starts.
Key terms, explained
Three terms do most of the damage here: two sound like the same thing, and the third is quietly the most important.
Plain-language definitions
- Maximum ski length
- The longest ski the maker says fits with the lid closed, in centimetres. Here the range runs 170 cm to 215 cm. It is not the exterior length, which is always longer.
- Interior length
- The usable space inside the shell, end to end. Thule publishes it for every Motion 3 size; Yakima publishes none, so on a Yakima box the ski rating is the only length figure you get.
- Crossbar spread
- The distance between your two roof bars, front to back. Both Yakima boxes here fit 24 to 40 inches. Outside that range the mounting clamps will not reach.
Mistakes that cost people money
The expensive one is buying on cubic feet, then finding at the trailhead that your skis go in diagonally or not at all.
- Buying capacity instead of lengthAn 18 cubic foot box and a 14 cubic foot box differ by 25 cm of ski length here. Check ski length first, volume second.
- Measuring the average ski, not the longestOne 184 cm pair in a household of 165 cm skiers sets the requirement. Measure tip to tail on the longest pair and add 5 cm.
- Forgetting the garage until the box is on the roofBox plus crossbar plus car height is what has to clear the door. The Motion 3 XXL adds 45 cm; the XL Low adds 35 cm.
- Confusing two sizes with nearly the same nameThe Motion 3 XXL and XXL Low share a ski rating but differ by 15 cm of interior height, and Yakima’s SkyBox NX XL is listed by many retailers as the SkyBox NX 18. Check the SKU. Our thule vs yakima: which brand for your roof guide untangles the naming.
Frequently asked questions
What size ski box do I need for 180 cm skis?
You need a box rated to at least 185 cm, and 195 cm is the safer buy. A 180 cm ski in a box rated to exactly 180 cm leaves no margin for bindings or tip rocker. The Yakima SkyBox NX XL at 195 cm clears it comfortably; a 170 cm box will not close.
Can you fit a snowboard in a ski box?
Yes, and boards are usually easier because they are shorter. Most adult boards run 150 to 165 cm, which fits every box here including the 170 cm Yakima RocketBox Pro 14. Watch width instead: the Thule Motion 3 Sport is 50 cm inside, so a board goes in but little fits beside it.
Do I need crossbars for a roof box?
Yes. Every box here clamps to crossbars, the bars running side to side above your doors. Factory side rails running front to back are not enough alone. Both Yakima boxes fit a crossbar spread of 24 to 40 inches, so measure between your bars before ordering.
How do you stop a roof box lock freezing?
Lubricate it with graphite or another dry lubricant before the season starts. Thule’s cargo box manual gives this instruction and adds that the box should be cleaned and maintained carefully, particularly in winter. Dry lubricant is specified because oil holds moisture in the keyway, and trapped moisture freezes overnight.
So which one should you buy?
Get the Yakima SkyBox NX XL unless a number in your own situation rules it out: 195 cm of ski length and 18 cubic feet covers most skiers, and every other pick here answers a constraint the SkyBox does not have.
| If you need | Best pick | Key spec | Buy |
|---|---|---|---|
| Best overall | Yakima SkyBox NX XLBest overall | 195 cm max ski length | Amazon → |
| Best value | Yakima RocketBox Pro 14Best value | 170 cm max ski length | Amazon → |
| Premium pick | Thule Motion 3 XXLPremium pick | 215 cm max ski length | Amazon → |
| Best for low garages | Thule Motion 3 XL Low | 200 cm skis in a 35 cm tall shell | Amazon → |
| If you are still unsure | Yakima SkyBox NX XL | 195 cm covers most adult skis | Amazon → |
Article engagement
Comments (0)
No comments yet. Be the first to share what you think.
Sign in to join the conversation.