Trunk comparison: Opel Astra Wagon vs Skoda Fabia

Key Differences
The Opel Astra wagon offers significantly more usable cargo space in length and width: With the seats folded down, the trunk of the Astra is 9.8 in (≈18%) longer than that of the Škoda Fabia, and with the first row of seats upright, it is even 13 in (≈45%) longer.
At its narrowest point, the Astra is also 6.3 in (≈17%) wider than the Fabia. In contrast, the Škoda Fabia scores higher in interior depth and ground clearance: The depth from the loading edge to the trunk floor is 6.7 in (≈850%) greater in the Fabia, and the loading edge itself is 3.5 in (≈15%) higher above the road.
Impact on Usability
For long items (skis, long boards, furniture parts), the Opel Astra wagon is better suited: the significantly greater loading length with both folded and upright seats allows for longer cargo without complicated angles or modifications.
The greater narrowest width in the Astra also makes it easier to store wide items, and the slightly larger opening width reduces difficulties when loading and unloading bulky parts.
The Škoda Fabia offers more vertical space behind the loading edge due to the significantly greater depth from the loading edge to the trunk floor — this is advantageous when items need to be placed deeper in the trunk or stacked higher.
However, the Fabia’s loading edge is noticeably higher, making it more strenuous to lift heavy loads in; despite the greater depth, the trunk floor sits overall lower relative to the loading edge, so the higher loading edge remains a disadvantage when lifting.
In summary: For longer and wider cargo as well as easier handling of bulky items, the Opel Astra wagon is the better choice. For deeper usable interior volume (for example, for stackable, bulky cargo), the Škoda Fabia offers advantages but pays for this with a higher loading edge that makes lifting more difficult.