Best Product Fit

Best roof cargo boxes for your needs

Start with Thule Motion 3 XL when you need family luggage and seasonal gear on a common raised-crossbar setup. Choose Yakima SkyBox NX XL when long skis, a short roof or tight hatch clearance changes which shell can physically fit. The matcher below checks the hard requirements first.

Top picks by situation

roof cargo box matcher

What matters to you in a roof cargo box?

Choose any combination. Results update instantly.

Check the bars, hatch and longest gearUse my measurements

Use the measurements from the actual vehicle. The tool screens volume, ski length, bar spread and front clearance before showing a fit.

2 models match your answers2 boxes pass the measurement screen

The check combines 16 cu ft, a 28-inch bar spread, 52 inches before the hatch, and your longest gear.

For Thule, measure from the front crossbar center to the roof-hatch junction, not to the open hatch tip. This narrows the list but does not replace the maker vehicle fit guide. Only boxes with published bar-spread and hatch-clearance figures can pass the exact screen. Confirm crossbar type, load limits, mounting clearance, and antenna clearance before buying.

Position 2
Thule Force 3 XL

Thule, Force 3 XL

Thule Force 3 XL

The box holds 18 cubic feet. It accepts gear up to 200 centimeters long.

Best fit forcarry skis without folding the seats and pack for a family of four

See price & reviews on Amazon

Why it fits

  • The box holds 18 cubic feet.
  • It accepts gear up to 200 centimeters long.
  • The documented crossbar spread runs from 21.875 to 36.625 inches.

Know the trade-offs

  • The selected version is black matte, so choose Motion if a glossy shell is your preference.
  • The front-bar-to-hatch measurement must exceed 53 1/16 inches in the US fit chart.
Position 3
Thule Motion 3 XXL

Thule, Motion 3 XXL Black Glossy

Thule Motion 3 XXL

The box holds 21 cubic feet. It accepts gear up to 215 centimeters long.

Best fit forcarry skis without folding the seats and pack for a family of four

See price & reviews on Amazon

Why it fits

  • The box holds 21 cubic feet.
  • It accepts gear up to 215 centimeters long.
  • The box uses dualside access.

Know the trade-offs

  • It is one of the longest and widest boxes here, so hatch and roof length deserve an exact check.
  • Its empty weight consumes a meaningful share of a low vehicle roof rating.
Position 4
Thule Force 3 L

Thule, Force 3 L

Thule Force 3 L

The box holds 16 cubic feet. It accepts gear up to 175 centimeters long.

Best fit forcarry skis without folding the seats and work with a shorter roof

See price & reviews on Amazon

Why it fits

  • The box holds 16 cubic feet.
  • It accepts gear up to 175 centimeters long.
  • The box uses dualside access.

Know the trade-offs

  • It is too short for 180 to 200 cm skis.
  • Its 16.8-inch height above the crossbar is not a low-garage specialist.
Position 5
Thule Pulse 2 L

Thule, Pulse 2 L

Thule Pulse 2 L

The box holds 16 cubic feet. It accepts gear up to 175 centimeters long.

Best fit forcarry skis without folding the seats and keep the rear hatch clear

See price & reviews on Amazon

Why it fits

  • The box holds 16 cubic feet.
  • It accepts gear up to 175 centimeters long.
  • The box uses dualside access.

Know the trade-offs

  • The 175 cm ski limit is short for many adult skis.
  • Central locking is simpler than Motion's SlideLock feedback system.
Position 6
Yakima SkyBox NX LG

Yakima, SkyBox NX 16 LG

Yakima SkyBox NX LG

The box holds 16 cubic feet. It accepts gear up to 175 centimeters long.

Best fit forcarry skis without folding the seats and keep the rear hatch clear

See price & reviews on Amazon

Why it fits

  • The box holds 16 cubic feet.
  • It accepts gear up to 175 centimeters long.
  • The documented crossbar spread runs from 24 to 36 inches.

Know the trade-offs

  • It will not fit 180 to 200 cm skis.
  • The 47-pound shell can be awkward to lift and remove alone.
Position 7
Yakima SkyBox NX XL

Yakima, SkyBox NX 18 XL

Yakima SkyBox NX XL

The box holds 18 cubic feet. It accepts gear up to 195 centimeters long.

Best fit forcarry skis without folding the seats and pack for a family of four

See price & reviews on Amazon

Why it fits

  • The box holds 18 cubic feet.
  • It accepts gear up to 195 centimeters long.
  • The documented crossbar spread runs from 24 to 40 inches.

Know the trade-offs

  • Its 195 cm ski limit is just short of 200 cm Nordic skis.
  • At 53 pounds empty, low-rated roofs and solo removal need attention.
Position 8
SportRack Vista XL

SportRack, Vista XL SR7018

SportRack Vista XL

The box holds 18 cubic feet. The box uses rear opening access.

Best fit forpack for a family of four and work with a shorter roof

See price & reviews on Amazon

Why it fits

  • The box holds 18 cubic feet.
  • The box uses rear opening access.
  • Its published exterior size is 63 x 38 x 19 inches.

Know the trade-offs

  • Rear opening can be awkward on a tall SUV and is not dual-side access.
  • The short 63-inch shell is suited to luggage, not long skis.
Position 9
Thule Motion 3 XXL Low

Thule, Motion 3 XXL Low Black Glossy

Thule Motion 3 XXL Low

The box holds 18 cubic feet. It accepts gear up to 215 centimeters long.

Best fit forcarry skis without folding the seats and keep the rear hatch clear

See price & reviews on Amazon

Why it fits

  • The box holds 18 cubic feet.
  • It accepts gear up to 215 centimeters long.
  • The box uses dualside access.

Know the trade-offs

  • The long shell still needs substantial hatch clearance even though it is low.
  • Only 13 inches of internal height makes tall luggage a poor match.
Position 10
Thule Motion 3 L

Thule, Motion 3 L Titan Glossy

Thule Motion 3 L

The box holds 16 cubic feet. It accepts gear up to 180 centimeters long.

Best fit forcarry skis without folding the seats and keep the rear hatch clear

See price & reviews on Amazon

Why it fits

  • The box holds 16 cubic feet.
  • It accepts gear up to 180 centimeters long.
  • The box uses dualside access.

Know the trade-offs

  • It will not take 200 cm skis.
  • Its 16-cubic-foot volume is less forgiving for a four-person trip than the XL or XXL.
Position 11
Thule Force 3 M

Thule, Force 3 M

Thule Force 3 M

The box holds 14 cubic feet. It accepts gear up to 155 centimeters long.

Best fit forkeep the rear hatch clear and work with a shorter roof

See price & reviews on Amazon

Why it fits

  • The box holds 14 cubic feet.
  • It accepts gear up to 155 centimeters long.
  • The box uses dualside access.

Know the trade-offs

  • Its 155 cm ski limit excludes most adult skis.
  • The tall 17.4-inch profile adds more garage height than low-profile boxes.
Position 12
Thule Pulse 2 M

Thule, Pulse 2 M

Thule Pulse 2 M

The box holds 14 cubic feet. It accepts gear up to 155 centimeters long.

Best fit forkeep the rear hatch clear and work with a shorter roof

See price & reviews on Amazon

Why it fits

  • The box holds 14 cubic feet.
  • It accepts gear up to 155 centimeters long.
  • The box uses dualside access.

Know the trade-offs

  • It cannot take ordinary adult-length skis above 155 cm.
  • Fourteen cubic feet fills quickly with four travelers' luggage.
Position 13
JEGS 18 Cubic Foot Rooftop Cargo Carrier

JEGS, 555-90098

JEGS 18 Cubic Foot Rooftop Cargo Carrier

The box holds 18 cubic feet. The documented crossbar spread runs from 24 to 35 inches.

Best fit forpack for a family of four and work with a shorter roof

See price & reviews on Amazon

Why it fits

  • The box holds 18 cubic feet.
  • The documented crossbar spread runs from 24 to 35 inches.
  • The box uses dual side access.

Know the trade-offs

  • The broad, short shape is for luggage and camping gear, not skis.
  • Some vehicles need new mounting holes drilled exactly as the instructions allow.
Position 14
INNO Wedge 660 Black

INNO, BRM660BK

INNO Wedge 660 Black

The box holds 11 cubic feet. The box uses dual side access.

Best fit forcarry skis without folding the seats and clear a low garage

See price & reviews on Amazon

Why it fits

  • The box holds 11 cubic feet.
  • The box uses dual side access.
  • Its published exterior size is 80 x 33 x 11 inches.

Know the trade-offs

  • Only 8.25 inches of internal height rules out ordinary suitcases.
  • Eleven cubic feet is a specialized ski and low-profile load, not maximum family volume.
Position 15
SportRack Horizon L

SportRack, Horizon L SR7016

SportRack Horizon L

The box holds 16 cubic feet. SportRack lists skis up to 178 centimeters long.

Best fit forcarry skis without folding the seats and work with a shorter roof

See price & reviews on Amazon

Why it fits

  • The box holds 16 cubic feet.
  • The US manufacturer specification lists skis up to 178 centimeters long.
  • The box uses passenger side access.

Know the trade-offs

  • Passenger-side-only opening is less convenient in a garage or tight parking space.
  • The published ski allowance is 178 cm. Longer skis need another box.
Position 16
SportRack Horizon Alpine

SportRack, Horizon Alpine SR7011

SportRack Horizon Alpine

The box holds 11 cubic feet. It accepts gear up to 210 centimeters long.

Best fit forcarry skis without folding the seats and stay within a light roof-load limit

See price & reviews on Amazon

Why it fits

  • The box holds 11 cubic feet.
  • It accepts gear up to 210 centimeters long.
  • The box uses passenger side access.

Know the trade-offs

  • The narrow 11-cubic-foot interior is not a family luggage box.
  • Passenger-side-only access is less flexible than dual-side opening.
Position 17
INNO Ridge Cargo Box

INNO, BRA240BK

INNO Ridge Cargo Box

The box holds 8 cubic feet. The box uses passenger side access.

Best fit forwork with a shorter roof and stay within a light roof-load limit

See price & reviews on Amazon

Why it fits

  • The box holds 8 cubic feet.
  • The box uses passenger side access.
  • Its published exterior size is 55.1 x 27.6 x 13.4 inches.

Know the trade-offs

  • Eight cubic feet is too small for a family packing list.
  • Passenger-side-only access and U-bolt hardware are less convenient than dual-side integrated clamps.
Position 18
Rhino-Rack MasterFit 440L

Rhino-Rack, RMFT440

Rhino-Rack MasterFit 440L

The box holds 15.5 cubic feet. It accepts gear up to 180 centimeters long.

Best fit forcarry skis without folding the seats and work with a shorter roof

See price & reviews on Amazon

Why it fits

  • The box holds 15.5 cubic feet.
  • It accepts gear up to 180 centimeters long.
  • The documented crossbar spread runs from 24.4 to 36.6 inches.

Know the trade-offs

  • It weighs 38.6 pounds, so lifting it onto the roof takes more effort than a lighter box.
  • Some heavy-duty bar systems require the separate RUBK-MF fitting kit.
Position 19
Rhino-Rack MasterFit 530L

Rhino-Rack, RMFT530A

Rhino-Rack MasterFit 530L

The box holds 18.7 cubic feet. It accepts gear up to 210.8 centimeters long.

Best fit forcarry skis without folding the seats and pack for a family of four

See price & reviews on Amazon

Why it fits

  • The box holds 18.7 cubic feet.
  • It accepts gear up to 210.8 centimeters long.
  • The documented crossbar spread runs from 21.7 to 39.4 inches.

Know the trade-offs

  • The 85-inch shell needs careful hatch and roof-length checks.
  • Its 47.4-pound empty weight reduces the cargo allowance on a lightly rated roof.
Position 20
Yakima DeepSpace 10 Cargo Box

Yakima, 8001171

DeepSpace 10 Cargo Box

The box holds 10 cubic feet. The documented crossbar spread runs from 32 to 46 inches.

Best fit forleave room for a bike rack and fit bars set far apart

See price & reviews on Amazon

Why it fits

  • The box holds 10 cubic feet.
  • The documented crossbar spread runs from 32 to 46 inches.
  • The box uses wide-angle opening access.

Know the trade-offs

  • Ten cubic feet is modest family capacity, and the 60-inch shell is too short for long skis.
  • It needs a 32 to 46 inch crossbar spread and cannot mount to Yakima's EXO hitch system.
Position 21
Thule Force 3 L Sport

Thule, 645650

Force 3 L Sport

A narrow box with the Force 3 mounting and locking hardware, built for smaller loads beside other roof gear.

Best fit forKeeping crossbar room available for a bike carrier

See price & reviews on Amazon

Why it fits

  • 11 cubic feet of advertised volume
  • 175 cm published maximum ski length
  • 75.2 by 24.7 by 16.7 inches outside

Know the trade-offs

  • The 175 cm ski limit excludes longer touring and Nordic skis.
  • Its narrow 20.2-inch interior makes wide suitcases a poor fit.
Position 22
Thule Force 3 XXL

Thule, 645950

Force 3 XXL

The largest Force 3 trades a long, heavy shell for 21 cubic feet and a 215 cm ski allowance.

Best fit forLong skis and bulky family luggage on a vehicle that passes the fit guide

See price & reviews on Amazon

Why it fits

  • 21 cubic feet of advertised volume
  • 215 cm published maximum ski length
  • 91.4 by 35.2 by 17.9 inches outside

Know the trade-offs

  • A 91.4-inch shell requires a careful hatch and roof-length check.
  • The official installed-height field conflicts with overall dimensions, so garage clearance needs a direct measurement.
Position 23
Thule Motion 3 XL Low

Thule, 639450 Black Glossy

Thule Motion 3 XL Low

A 14 cu ft, dual-opening box for skis up to 200 cm. Its published height above the crossbar is 12 inches, with less internal height than the regular XL.

Best fit forKeep a long ski load lower above the crossbars

See price & reviews on Amazon

Why it fits

  • 14 cu ft capacity and a 200 cm maximum ski length.
  • PowerClick mounts and dual-side opening.
  • The product page lists 12 inches above the crossbar.

Know the trade-offs

  • The low shell gives up packing height and four cubic feet compared with Motion 3 XL.
  • Confirm the exact cargo clearance against the manual because the product page and manual list different internal heights.
Position 24
Yakima SkyBox NX Skinny

Yakima, 8007368

Yakima SkyBox NX Skinny

A 12 cu ft box for skis up to 195 cm. Its 26.5-inch width leaves more room beside it than the full-width SkyBox NX XL.

Best fit forCarry long skis while planning space for another roof carrier

See price & reviews on Amazon

Why it fits

  • 12 cu ft capacity and a 195 cm maximum ski length.
  • 84 x 26.5 x 16 inches and 43 lb empty.
  • Crossbar spread 24 to 40 inches.

Know the trade-offs

  • Its 12 cu ft volume is smaller than the 18 cu ft NX XL despite the same 84-inch overall length.
  • It weighs 43 lb and the manual calls for help when lifting it onto or off the rack.
Position 25
Yakima SkyBox NX XXL

Yakima, 8007371

Yakima SkyBox NX XXL

A 22 cu ft, dual-opening box for skis up to 215 cm. Its 60.5 lb shell and longer hatch-clearance requirement need checking before packing.

Best fit forCarry long skis and bulky family gear on a roof that passes the load and hatch checks

See price & reviews on Amazon

Why it fits

  • 22 cu ft capacity and a 215 cm maximum ski length.
  • 90.5 x 36 x 19 inches and 60.5 lb empty.
  • Crossbar spread 24 to 40 inches.

Know the trade-offs

  • The 60.5 lb empty shell consumes a substantial part of the roof-load allowance.
  • Its Yakima-method hatch-clearance requirement is 55 inches, five inches more than the NX XL.
Position 26
SportRack Sidekick

SportRack, SR7020

SportRack Sidekick

An 8 cu ft passenger-opening box weighing 19.85 lb. Its manual has a 50 lb minimum-load warning for higher-speed travel, so check that restriction before planning a light highway load.

Best fit forA compact load that meets the manual’s highway weight restriction

See price & reviews on Amazon

Why it fits

  • 8 cu ft capacity with passenger-side opening.
  • 54 x 25 x 15.5 inches and 19.85 lb empty.
  • The current product page rates cargo capacity at 75 lb.

Know the trade-offs

  • The manual warns against empty travel above 40 mph and calls for at least 50 lb in the carrier for higher-speed use.
  • Use the stricter 75 lb cargo rating from the current page and confirm vehicle and rack limits.

The choices that matter

How to choose your next roof cargo box

Focus on the factors that change which product works best for you.

01

Use the maker vehicle fit guide

Roof shape, factory bars and clamp clearance can rule out a box even when the basic measurements look close.

02

Hatch clearance starts at the front bar

Measure from the center of the front crossbar to the point where an open hatch would touch the box.

03

Volume does not describe shape

A tall short box and a long low box can hold the same cubic feet but serve different gear.

04

The lowest roof limit wins

Vehicle, crossbar and box load limits all apply. The smallest published limit controls.

05

Long gear needs internal length

Outside shell length can overstate the space available to skis and boards.

06

Dual-side opening helps on real trips

Loading from either curb side can make a wide vehicle much easier to use safely.

Direct decisions

Compare the choices people actually face

Compare popular choices or start with a need-specific shortlist.

Head-to-head

Thule Motion 3 XL vs Thule Force 3 XL: Motion needs less hatch clearance, both stop at 200 cm skisCompare Motion 3 XL and Force 3 XL for hatch access, garage height and roof payload before choosing a box for family luggage or skis.Yakima SkyBox NX 16 LG vs Thule Motion 3 L: Motion takes 180 cm skis, Yakima documents a 24–36-inch bar spreadYakima SkyBox NX 16 LG and Thule Motion 3 L compared by volume and gear length, vehicle measurements, loading and hardware.Yakima SkyBox NX 18 XL vs Thule Force 3 XL: Thule takes 200 cm skis, Yakima relaxes hatch and wide-bar constraintsYakima SkyBox NX 18 XL and Thule Force 3 XL compared by volume and gear length, vehicle measurements, loading and hardware.INNO BRM660BK vs Thule Motion 3 XXL Low: INNO lowers the profile, Thule adds packing volume and 215 cm ski fitINNO BRM660BK and Thule Motion 3 XXL Low compared by volume and gear length, vehicle measurements, loading and hardware.SportRack Vista XL SR7018 vs JEGS 555-90098: JEGS opens from either side, Vista loads from the rearSportRack Vista XL SR7018 and JEGS 555-90098 compared by volume and gear length, vehicle measurements, loading and hardware.Rhino-Rack RMFT440 vs Yakima SkyBox NX 16 LG: Rhino carries lighter, Yakima documents hatch clearance and a flat floorRhino-Rack RMFT440 and Yakima SkyBox NX 16 LG compared by volume and gear length, vehicle measurements, loading and hardware.Rhino-Rack RMFT530A vs Thule Motion 3 XXL: Thule fits 215 cm skis, Rhino keeps a shorter shell with wider bar optionsRhino-Rack RMFT530A and Thule Motion 3 XXL compared by volume and gear length, vehicle measurements, loading and hardware.INNO BRA240BK vs Thule Pulse 2 M: INNO lightens short-roof lifting, Thule adds six cubic feet and dual accessINNO BRA240BK and Thule Pulse 2 M compared by volume and gear length, vehicle measurements, loading and hardware.Thule Force 3 L vs L Sport: Sport narrows the shell for shared roof space without shortening ski fitCompare Force 3 L and L Sport by roof width, box weight, interior shape and how much luggage fits beside another roof-mounted carrier.Thule Force 3 XL vs XXL: XXL takes skis above 200 cm, XL keeps the shell shorter and lighterCompare Force 3 XL and XXL by long-ski fit, shell length, empty weight and usable luggage height before choosing the larger roof box.Thule Motion 3 XXL vs Force 3 XXL: Same volume and ski limit, taller cases and wider cargo fit differentlyCompare the two 21-cubic-foot Thule XXL boxes by internal dimensions, exterior width, weight and the luggage that must fit under each lid.Thule Motion 3 XXL vs XXL Low: Low cuts three inches above the bars without shortening the ski allowanceCompare Motion 3 XXL and XXL Low by internal luggage height, garage clearance, capacity and the nearly identical work of lifting either box.Force 3 L Sport vs Horizon Alpine: Horizon takes skis above 175 cm, Thule opens both sides in a shorter shellCompare Force 3 L Sport and SportRack Horizon Alpine by ski limits, roof width, empty weight and access when another carrier shares the rack.Thule Pulse 2 L vs Force 3 L: Pulse lifts lighter, Force adds SlideLock with the same volume and ski limitCompare Pulse 2 L and Force 3 L by lifting weight, installed height, internal fit and lock operation at the same stated cargo volume.Thule Pulse 2 M vs Force 3 M: Force adds six pounds for SlideLock, both stop at 155 cm skisCompare Pulse 2 M and Force 3 M by handling weight, overhead height, usable interior and locking at their shared 14-cubic-foot capacity.Thule Pulse 2 M vs L: L fits skis above 155 cm, M eases tight hatch-clearance planningCompare Pulse 2 M and L by luggage volume, ski length, shell weight and the roof length needed to gain two extra cubic feet.Thule Force 3 M vs L: L extends ski length, M keeps a shorter shell with a taller interiorCompare Force 3 M and L by ski limits, roof length, empty weight and internal height for a compact car or small family trip.Thule Motion 3 L vs Force 3 L: Motion fits 176–180 cm skis, Force uses less roof widthCompare Motion 3 L and Force 3 L by ski limits, usable height, roof width and weight while keeping the same 16-cubic-foot volume.Thule Pulse 2 L vs SkyBox NX 16: Pulse lifts lighter, SkyBox uses less roof length for its flat-floor layoutCompare Pulse 2 L and SkyBox NX LG by empty weight, exterior dimensions, mounting approach and their shared 175 cm ski allowance.Yakima SkyBox NX 16 vs 18: NX 18 takes skis above 175 cm, NX 16 parks and stores more compactlyCompare SkyBox NX LG and XL by ski length, shell dimensions, weight and the two extra cubic feet available for a family road trip.Thule Motion 3 XL vs SkyBox NX 18: Motion takes 196–200 cm skis, Yakima keeps the body slightly shorterCompare Motion 3 XL and SkyBox NX XL by their 200 and 195 cm ski limits, exterior proportions, mounting workflow and empty weight.Thule Force 3 L vs Force 3 XL: XL adds ski length and volume but tightens the hatch-clearance requirementCompare Force 3 L and XL for 175 versus 200 cm skis, cargo volume, roof-load allowance and hatch clearance. Check the measurements before upsizing.Thule Motion 3 L Titan vs Motion 3 XL Black: XL extends ski and luggage room without adding installed heightCompare Motion 3 L Titan and XL Black for ski length, luggage volume, roof weight and hatch clearance. Both add the same stated height above the bars.Thule Force 3 L vs Yakima SkyBox NX 16: Same volume and ski limit, Thule fits narrower bar spacing and weighs lessCompare Force 3 L and SkyBox NX 16 for equal cargo volume and ski length. Check bar spread, body size, roof weight and each brand's hatch-fit method.Thule Force 3 L Sport vs Yakima SkyBox NX 16: Sport leaves more roof width, SkyBox adds volume with the same ski limitCompare the narrow Force 3 L Sport with SkyBox NX 16 for shared roof space, ski length, cargo volume and load allowance. Verify rack and hatch fit.Thule Motion 3 XXL Low vs Yakima SkyBox NX 18: Thule fits longer skis lower, Yakima shortens the shell for the same volumeCompare two 18 cu ft boxes for 215 versus 195 cm skis, roof length, crossbar spread and hatch clearance. Check the low-profile claim against your setup.Thule Motion 3 XL vs Motion 3 XXL Low: XXL Low fits longer skis two inches lower, both hold eighteen cubic feetThule Motion 3 XL vs XXL Low for long skis and garage clearance. Compare equal cargo volume, roof-load costs, internal height and exact hatch-fit checks.Thule Force 3 M vs Yakima SkyBox NX 16: SkyBox fits 170 cm skis that rule out the smaller Force MCompare Force 3 M and SkyBox NX 16 for short-roof hatch access, 170 cm skis, roof-load allowance and the bags you actually need to carry.Thule Force 3 XXL vs Yakima SkyBox NX 18: Thule fits skis above 195 cm, Yakima leaves more length and payload marginCompare Force 3 XXL and SkyBox NX 18 for 205 cm skis, hatch clearance, roof-load budgets and bulky luggage before mounting a large cargo box.Thule Force 3 L Sport vs Thule Force 3 M: Sport fits longer skis beside other gear, M adds bag room in less lengthCompare Force 3 L Sport and Force 3 M for a bike beside the box, adult skis, soft bags, hatch access and the roof weight your car allows.Thule Force 3 L Sport vs Yakima SkyBox NX 18: Sport preserves neighboring rack space, SkyBox takes longer skis and more bagsCompare Force 3 L Sport and SkyBox NX 18 when roof space must serve bikes, longer skis or family luggage without exceeding vehicle load limits.Yakima SkyBox NX Skinny vs Thule Force 3 L Sport: Skinny fits longer skis and wider bars, Sport preserves more roof allowanceCompare two narrow roof boxes for a bike-and-ski trip, using actual ski limits, bar spacing and the weight left for luggage.Yakima SkyBox NX Skinny vs Yakima SkyBox NX XL: XL adds luggage width without extending ski length or hatch compatibilityChoose the narrow or full-width SkyBox for shared roof space, family bags and remaining payload without assuming the wider box holds longer skis.Yakima SkyBox NX XXL vs Thule Force 3 XXL: Yakima fits wider bar spacing, Thule saves weight at the same ski limitChoose between two long-ski roof boxes by fixed-bar spacing and remaining payload, with separate hatch measurements and honest garage limits.Yakima SkyBox NX XXL vs Yakima SkyBox NX XL: Long skis and short hatch clearance can rule out both sizesCheck whether the larger SkyBox solves long skis or bulky gear without losing hatch access or exceeding the roof weight you have left.Thule Motion 3 XL Low vs Thule Motion 3 XL: Low helps overhead clearance without fixing a short roof or hatch conflictCompare garage headroom and suitcase clearance before choosing a low roof box, with the same ski length and hatch threshold.Thule Motion 3 XL Low vs Thule Force 3 L Sport: Low fits longer skis, Sport saves bar space, a tight hatch can rule out bothChoose between long skis and shared roof space, with separate checks for hatch clearance, crossbar width and garage height.SportRack Sidekick vs Thule Force 3 M: Sidekick requires a 50 lb minimum load above 40 mph, Force suits light bulkCompare compact roof storage with a larger dual-opening box, including the Sidekick’s unusual highway load restriction.SportRack Sidekick vs Yakima SkyBox NX Skinny: Sidekick’s shorter shell saves little bar width and has a highway load minimumCompare a compact passenger-opening carrier with a long narrow ski box, accounting for highway load limits and shared roof space.

Best for a specific need

Best roof box for a family of fourThule Motion 3 XXL offers the most verified volume in this set at 21 cubic feet, provided the roof and hatch clear its size and weight.Best roof box for long skisMotion 3 XXL Low is the strongest long-ski and low-profile combination because it accepts 215 cm skis and sits 13 inches above the crossbar.Best low-profile roof boxINNO Wedge 660 is the lowest verified option here at about 9.75 inches above the crossbar.Best roof box for a short hatchbackINNO Ridge is the shortest shell at 55.1 inches, but only a manufacturer fit guide and an open-hatch measurement can confirm the vehicle match.Best roof box with dual-side openingThule Force 3 XL is the balanced dual-side choice for 18 cubic feet and 200 cm skis.Best narrow roof box beside a bike rackSportRack Horizon Alpine is the narrowest at 21 inches and leaves the best mathematical chance of fitting another carrier beside it.Lightest roof cargo box in this setINNO Ridge is the lightest verified box here at 20 pounds.Largest roof cargo box in this setThule Motion 3 XXL leads by published volume at 21 cubic feet.Best roof box for occasional road tripsThule Pulse 2 M is the easiest occasional-use balance because it weighs 31 pounds and has tool-free PowerClick clamps.Best roof box to move between two carsPulse 2 L is the practical transfer pick because it combines a 35.3-pound shell with tool-free PowerClick mounting.Best roof box for tall luggageRhino-Rack MasterFit 530 has the tallest verified internal height here at 17 inches.Best roof box for a wide crossbar spreadYakima DeepSpace 10 accepts the farthest-apart bars here at 32 to 46 inches. Choose SkyBox NX 18 when the spread is between 24 and 40 inches and you need more cargo volume, or MasterFit 530 when 21.7 to 39.4 inches and long ski capacity fit better.