Main trade-off
Thule Force 3 L
Cannot accommodate skis over 175 cm
Head-to-head
Choose Force 3 L for shorter skis and a lighter box on a tighter roof. Choose Force 3 XL when 18 cubic feet or skis up to 200 cm are necessary. Both use the same published bar-spacing range, but the XL adds length, weight and a stricter hatch-clearance requirement.
Before you choose
A 190 cm ski fits only the XL's published length limit.
What this is based on
190 exceeds the L's 175 cm limit and is below the XL's 200 cm limit. This assumes the complete load fits and the box is installed correctly.
Main trade-off
Cannot accommodate skis over 175 cm
Main trade-off
Adds 6.6 lb before any cargo is loaded


Compare Force 3 L and XL for 175 versus 200 cm skis, cargo volume, roof-load allowance and hatch clearance. Check the measurements before upsizing.
Choose Force 3 L for shorter skis and a lighter box on a tighter roof. Choose Force 3 XL when 18 cubic feet or skis up to 200 cm are necessary. Both use the same published bar-spacing range, but the XL adds length, weight and a stricter hatch-clearance requirement.
Winner by situation
Only XL is rated for ski lengths up to 200 cm.
L passes the published hatch threshold and XL does not.
Both exceed their 36 5/8-inch maximum spread.
L is 16 cu ft and XL is 18.
Subtract the box and rack, then obey whichever vehicle, rack or box limit is lowest. L leaves 92 lb and XL 85.4 lb under this hypothetical total limit.
What matters in practice
A 190 cm ski fits only the XL's published length limit.
190 exceeds the L's 175 cm limit and is below the XL's 200 cm limit. This assumes the complete load fits and the box is installed correctly.
XL adds 12.5% volume and 6.6 lb of box weight.
(18 − 16) ÷ 16 = 12.5%. Manual weights give 49.6 − 43 = 6.6 lb that cannot be used for cargo under the same roof-load ceiling.
A 52-inch Thule front-clearance measurement clears L's threshold but not XL's.
52 is greater than 50.625 and less than 53.0625 inches. Final fit still includes the specified bar and clamp checks.

Thule, Force 3 L
The box holds 16 cubic feet. It accepts gear up to 175 centimeters long.

Thule, Force 3 XL
The box holds 18 cubic feet. It accepts gear up to 200 centimeters long.
Meaningful differences
| What changes | Thule Force 3 L | Thule Force 3 XL | Why it matters |
|---|---|---|---|
| Cargo volume | 16 cu ft | 18 cu ft | The extra space does not increase your vehicle's permitted roof load. |
| Maximum ski length | 175 cm | 200 cm | Use the longest ski or snowboard dimension, including how it packs. |
| Body length and width | 76.8 × 33.3 in | 84.8 × 34.1 in | XL is longer and slightly wider. |
| Box weight in installation manual | 43 lb | 49.6 lb | Subtract rack and box weight before calculating the cargo allowance. |
| Crossbar center spacing | 21 7/8 to 36 5/8 in | 21 7/8 to 36 5/8 in | Bar profile and rack compatibility still require their own checks. |
| Hatch front-clearance threshold | Greater than 50 5/8 in | Greater than 53 1/16 in | Measure front-bar center to where the roof meets the hatch using Thule's method. |
What you give up
Recommendation switch
Choose Thule Force 3 XL. XL is the only model whose published ski limit covers them.
Choose Thule Force 3 L. The larger box cannot be assumed to clear the hatch.
Choose neither. Both fail the published spread range.
What matters in practice
A 190 cm ski makes the smaller box unsuitable regardless of how much empty volume remains. If every item fits within L's dimensions, the larger shell is optional rather than an automatic improvement.
Thule's method measures from the front bar center to the point where the roof meets the hatch. The product and chart have small rounding differences, so the more conservative values are used here. Trial-check opening clearance after installation.
The box's 165 lb cargo limit is only one ceiling. Vehicle and rack limits may be lower and include the rack and box themselves. More cubic feet can help bulky bedding while adding little useful capacity for dense equipment.
What the facts say
Useful conclusions from the current roof cargo boxes comparison, followed by the checked facts used to reach them.
| Product | Needs matched | Checked facts | Source records |
|---|---|---|---|
| Thule Force 3 L |
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| Thule Force 3 XL |
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Ready to choose?
Open either model on Amazon to check the current price, customer reviews and delivery options.

Carry skis up to 175 cm with less box weight
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Carry skis above 175 and up to 200 cm
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