VIHALS Sideboard, white, 55 1/8x18 1/2x29 1/2 "
+10⅞″ margin
Will fit in a ?
Yes, it will fit!
Good news: all 2 packages of KALLAX Shelf unit, white, 43 7/8x57 5/8 " fit individually diagonally in a Mazda CX-5 2023 with seats down.
Fit Details
With seats down, Good news - all 2 packages fit individually. The tightest one is Package #1 (56½″ × 16″ × 5″), with +12⅛″ at cargo width (best loaded diagonal). We're about 95% confident in this estimate.
KALLAX Shelf unit, white, 43 7/8x57 5/8 "
Box: 56½″ × 16″ × 5″ · 52 lb
Based on IKEA US (United States).
Package dimensions last checked and updated on Aug 31, 2026
Package
Status
Limiting factor
Best orientation
Package #1
56½″ × 16″ × 5″
Status:+12⅛″ margin
Limited by
Limiting factor:Cargo width
Best orientation:Diagonal
Package #2
56½″ × 16¼″ × 4¾″
Status:+12⅜″ margin
Limited by
Limiting factor:Cargo length
Best orientation:Diagonal
Vehicle limits
Opening width / height
41¾″ / 31⅛″
Cargo width / height
41⅜″ / 33⅛″
Cargo length seats up / down
37¾″ / 66⅞″
Loading sill height
29⅞″
Mazda CX-5 2023
Measurements last checked and updated on Aug 14, 2026
Helpful tips
Use these loading tips to improve your chances of fitting KALLAX Shelf unit, white, 43 7/8x57 5/8 " in Mazda CX-5 2023.
Use available cargo width
Center the package between the side walls before final rotation.
Load diagonally first
Load diagonally first, then straighten once inside.
Plan package order
Load each package one at a time. Individual package fit does not guarantee all packages will fit stacked together.
Other items to check in Mazda CX-5 2023
Ranked by fit margin and package-dimension similarity. This improves as we index more items.
About the Mazda CX-5 2023 boot
The CX-5's cargo opening measures 41¾″ wide by 31⅛″ tall, with 37¾″ of floor behind it when the seats are up. Fold the bench and the floor stretches to 66⅞″, a gain of 29⅛″, which is what makes longer loads possible at all. The floor holds 41⅜″ at its narrowest, so wide flat boxes lie level instead of wedging. Short, boxy loads fit fine seats up; anything long depends entirely on folding. The liftover sits at 29⅞″ with a 2″ drop to the floor, so lift heavier boxes clear of the sill rather than dragging them across it.
About the KALLAX Shelf unit, white, 43 7/8x57 5/8 " package
The KALLAX shelf unit arrives as two packages, and the larger one measures 56½″ long, 16″ wide and 5″ thick. That length is what decides the car. The whole order weighs 95 lb 3 oz, so it is a two-person lift even though the boxes look thin. Flat-pack board has no give, so you cannot bend it around a wheel arch or a seat back. An estate or an SUV with the rear bench down handles it comfortably. Load the long box first, on its edge and angled towards the far corner, then slide the second one alongside.
Frequently asked questions
Find quick answers about fit for KALLAX Shelf unit, white, 43 7/8x57 5/8 " in Mazda CX-5 2023, including seats up vs seats down, limiting factor, best orientation, and package-by-package margins.
Will KALLAX Shelf unit, white, 43 7/8x57 5/8 " fit in Mazda CX-5 2023?
Yes. With seats down, it fits with +12⅛″ at Cargo width. Best orientation: diagonal.
What is the tightest part?
The limiting factor is Cargo width, with +12⅛″ margin in seats down.
Do I need to fold the seats?
Results differ by configuration. Seats up is No and seats down is Yes.
Do all packages fit in the car at the same time?
We test each package individually. All packages fitting individually does not guarantee they will fit stacked together. You may need multiple trips.
Which loading orientation works best?
Diagonal is the best orientation for this result in seats down.
Does it fit with seats up or seats down?
Seats up: No (-4¾″). Seats down: Yes (+12⅛″). Default selection follows YES > MAYBE > NO.
Which package is the hardest to load?
Package #1 (56½″ × 16″ × 5″) is the tightest, with +12⅛″ at Cargo width.
Can I load it diagonally?
Yes, diagonal is the best orientation for this check, with +12⅛″ around the limiting point.
Do all packages fit?
Yes. All 2 packages fit individually in seats down. The tightest one is Package #1 (56½″ × 16″ × 5″).
How tight is this fit?
This result is in the comfortable clearance band (+12⅛″ at Cargo width).