Will NÄMMARÖ Privacy screen, light brown stained indoor/outdoor, 55 1/8x31 1/2x19 5/8 " fit in a Citroen C5 Aircross 2021?

The C5 Aircross gives you a wide, square loading mouth: 41″ across and 30¾″ tall, with a floor that is actually wider than the opening at 41¾″ between the arches. Seats up you get 38¼″ of length; folding them stretches that to 67¾″, a gain of 29½″. The catch is the sill, which sits 29⅛″ off the ground, though the floor drops only 1⅝″ behind it, so boxes slide in level rather than falling in. Wide flat packs do well here; very long ones run out of floor before they run out of mouth. Lift heavy boxes to sill height first, rest them, then push.

The NÄMMARÖ ships as one flat pack at 55¼″ by 11″ by 2¼″, 23 lb 2 oz. That is a light, narrow plank of a box: easy to carry on your own, awkward only in its length. Almost any hatchback takes it once the rear seats fold, and most wagons and SUVs swallow it without folding anything. The slats sit close to the surface of the pack, so the long edges take the knocks; carry it on edge rather than flat, and rest it on a blanket instead of the bare sill. Angle it through the door corner first and the rest follows.