KALLAX Shelf unit, white, 30 1/8x30 1/8 "
+8⅞″ margin
Will fit in a ?
Yes, it will fit!
Good news: BRIMNES Cabinet with doors, white, 30 3/4x37 3/8 " should fit diagonally in a Kia Niro 2023 with seats up.
Fit Details
With seats up, Good news - this package should fit. You have about +4½″ of clearance at opening width when loading diagonal. We're about 95% confident in this estimate.
BRIMNES Cabinet with doors, white, 30 3/4x37 3/8 "
Box: 39″ × 16¾″ × 6″ · 72 lb 7 oz
Based on IKEA US (United States).
Package dimensions last checked and updated on Aug 23, 2026
Package
Status
Limiting factor
Best orientation
Package #1
39″ × 16¾″ × 6″
Status:+4½″ margin
Limited by
Limiting factor:Opening width
Best orientation:Diagonal
Vehicle limits
Opening width / height
41⅜″ / 31⅞″
Cargo width / height
41⅜″ / 37¾″
Cargo length seats up / down
32⅝″ / 65⅜″
Loading sill height
29⅛″
Kia Niro 2023
Measurements last checked and updated on Aug 08, 2026
Helpful tips
Use these loading tips to improve your chances of fitting BRIMNES Cabinet with doors, white, 30 3/4x37 3/8 " in Kia Niro 2023.
Optimize opening width
Keep the narrow edge leading while entering the opening.
Load diagonally first
Load diagonally first, then straighten once inside.
Other items to check in Kia Niro 2023
Ranked by fit margin and package-dimension similarity. This improves as we index more items.
About the Kia Niro 2023 boot
The Kia Niro 2023 opens wide at 41⅜″ across and 31⅞″ tall, so squeezing a box through the mouth is rarely what stops you. The limit is floor depth. With the rear seats up you get 32⅝″, tight for long boxes, but drop the bench and it stretches to 65⅜″, a gain of 32⅝″. The floor holds 41⅜″ across at its narrowest, so flat packages sit side by side. The load lip is high at 29⅛″ with a 5⅞″ drop to the floor, so lift over the sill, then slide long flat loads in with the seats folded.
About the BRIMNES Cabinet with doors, white, 30 3/4x37 3/8 " package
The BRIMNES cabinet arrives as one flat box, 39″ × 16¾″ × 6″, weighing 72 lb 7 oz. The size is friendly; the weight is not. At 39″ long it clears the folded load floor of almost any car, and plenty of boots take it with the seats still up, so this is one of the easier IKEA packages to move by car. What catches you is lifting 72 lb of dense flat-pack over a sill on your own. Slide it on its long edge rather than carrying it flat, bring a second pair of hands for the kerb and the stairs, and protect the corners; chipboard shows every knock at the edges.
Frequently asked questions
Find quick answers about fit for BRIMNES Cabinet with doors, white, 30 3/4x37 3/8 " in Kia Niro 2023, including seats up vs seats down, limiting factor, best orientation, and package-by-package margins.
Will BRIMNES Cabinet with doors, white, 30 3/4x37 3/8 " fit in Kia Niro 2023?
Yes. With seats up, it fits with +4½″ at Opening width. Best orientation: diagonal.
What is the tightest part?
The limiting factor is Opening width, with +4½″ margin in seats up.
Is the trunk opening the issue?
Yes. The tightest constraint is at the opening (Opening width) with +4½″ margin.
How tight is this fit?
This result is in the good clearance band (+4½″ at Opening width).
Does it fit with seats up or seats down?
Seats up: Yes (+4½″). Seats down: Yes (+23⅜″). Default selection follows YES > MAYBE > NO.
Can I load it diagonally?
Yes, diagonal is the best orientation for this check, with +4½″ around the limiting point.
Which loading orientation works best?
Diagonal is the best orientation for this result in seats up.
How confident is this result?
Confidence is 95 out of 100 based on available dimensions and margin tightness.