Will IVAR Shelving unit, pine, 35x11 3/4x70 1/2 " fit in a BMW X3 2022?

The X3 gives you a wide, level cargo bay. The hatch opens 44⅛ inches across and 31⅛ inches tall, and the floor holds 43¼ inches at its narrowest, so wide boxes that snag in smaller SUVs slide through here. Length is the catch: 37⅜ inches behind the seats, 70⅛ inches once they fold, a gain of +32⅝ inches. The floor sits level with the 27½ inch liftover, no drop on the far side, so a heavy carton pushes straight in. Save long flat-packs for seats-down trips; upright, the bay favors short, wide, stackable boxes. Slide heavy loads in across the sill and spare your back.

The IVAR shelving unit packs into one long, slim box: 70 1/2 inches long, 3 1/2 inches wide, and just 1 3/4 inches thick. At 6 lb 1 oz it is light, so the problem is never the weight, it is the length. That 70 1/2 inches of rigid pine will not bend around a wheel arch or a seat back, so a short boot forces it across the cabin at an angle. An estate or a hatchback with the rear seats down takes it easily. Load it flat and straight, thin edge up, and rest the far end against a seat back so it cannot slide when you brake.