ABS Dual-Opening Roof Box 280 to 480 L

ABS roof box with dual opening: load from the side where you are parked

A rigid roof box that only opens on one side always forces you to walk around the car, often into traffic. This one opens on both the right and left: load from the sidewalk, from the garage, or from the side sheltered from the wind. Six capacities are available, from 280 to 480 liters, allowing you to match this ABS roof box to the actual length of your roof rather than forcing a single size on both a city car and a large SUV.

A thermoformed shape that blends with the roofline

The shell is thermoformed in a single piece: no visible seams, no added edges, just a continuous surface that catches the light along its entire length. Mounted on crossbars, this compact roof box remains low and discreet—it won't turn your sedan into a moving truck like bulky 190 cm shells do.

The finish can be color-customized by the manufacturer, allowing you to order a shade that matches your car's paintwork rather than the standard black. On a dark vehicle, a matching roof box for crossbars looks almost like an original part.

ABS, ASA and PMMA: three engineering plastics for a shell that won't fade

The manufacturer states that it is made of thermoformed ABS, with some versions featuring ABS+ASA+PMMA. This is no minor detail: ASA is one of the few plastics that withstands UV rays long-term without turning a creamy gray, while PMMA provides a glossy surface finish. The stated operating temperature range is from -20°C to 100°C, from snowy mountain passes in January to sun-baked parking lots in August. The stated net weight is 9.5 kg, with a packaged weight of 12 kg—a manageable mass that leaves even more margin under the roof's weight limit.

• Dual-side opening—access the cargo area from whichever side you are parked.
• Six capacities from 280 to 480 L—from small city volumes to large family roof boxes.
• Thermoformed ABS shell—a single, rigid piece with no seams to seal.
• Stated operating range of -20 to 100°C—from winter in the mountains to heatwaves in parking lots.
• Just 9.5 kg—easy to lift and place without special equipment.
• Customizable color—option to match the shell to the vehicle's paintwork.

Mounting this roof box on your car without drilling anything

This box attaches to crossbars, whether they are factory-fitted or universal closed-profile bars. Position the empty shell, pull it back slightly so the tailgate can open, then tighten the clamps onto the bars. Mounting a roof box requires checking the tightness after the first few kilometers and again at every stop on a long journey. Crossbars are not included: check their presence and spacing before ordering, as well as the maximum roof load specified by your car manufacturer.

280 L, 400 L or 480 L: which capacity for which use?

Under 300 liters, it is a supplement: a few soft bags, sports equipment, or whatever no longer fits in the trunk. Around 400 liters, it can accommodate the suitcases and stroller of a family of four. At 480 liters, a 400L roof box or larger can fit a complete set of camping gear. The best approach is to first measure the usable length of your roof: a roof box that is too long will prevent the tailgate from opening, and that is the only truly irreversible mistake.

Roof cargo as seen by a French auto accessories shop

We stock rigid boxes, soft bags, baskets, and bars, and we always see the same questions come up: available length, bar spacing, and weight limits. Send us the exact model of your car before choosing your car roof box, and we will help you decide between two capacities.

Open your trunk from whichever side is convenient and stop walking around the car with your arms full.

Type: Rigid thermoformed roof box, dual-side opening
Material: ABS, or ABS + ASA + PMMA depending on the version
Available capacities: 280 L, 300 L, 400 L, 420 L, 450 L, 480 L
Stated dimensions: 120 x 80 x 23 cm
Packaging dimensions: 121 x 81 x 24 cm
Net weight: 9.5 kg—Gross weight: 12 kg
Stated temperature range: -20°C to 100°C
Opening: Dual, left and right sides
Mounting: On roof crossbars—bars not included
Color: Customizable subject to availability
Compatibility: Universal, to be checked according to roof length and weight limit