BRIMNES Cabinet with doors, white, 30 3/4x37 3/8 "
+4½″ margin
Will fit in a ?
Yes, it will fit!
Good news: KALLAX Shelf unit, white, 30 1/8x30 1/8 " 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 +8⅞″ of clearance at opening width when loading diagonal. We're about 95% confident in this estimate.
KALLAX Shelf unit, white, 30 1/8x30 1/8 "
Box: 31¾″ × 16¼″ × 7½″ · 37 lb 8 oz
Based on IKEA US (United States).
Package dimensions last checked and updated on Aug 15, 2026
Package
Status
Limiting factor
Best orientation
Package #1
31¾″ × 16¼″ × 7½″
Status:+8⅞″ 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 KALLAX Shelf unit, white, 30 1/8x30 1/8 " 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 KALLAX Shelf unit, white, 30 1/8x30 1/8 " package
The 2x2 KALLAX is one of the easiest IKEA packages you will carry: a single flat box of 31¾″ × 16¼″ × 7½″ at 37 lb 8 oz. At under 32″ long it fits in nearly any trunk without folding a seat, small hatchbacks included. The weight is the only catch: it is dense for its size and the cardboard gives you no handholds. Carry it upright against your body rather than flat by the ends, and lay it on its wide face in the trunk so it cannot flip over on the first speed bump.
Frequently asked questions
Find quick answers about fit for KALLAX Shelf unit, white, 30 1/8x30 1/8 " in Kia Niro 2023, including seats up vs seats down, limiting factor, best orientation, and package-by-package margins.
Will KALLAX Shelf unit, white, 30 1/8x30 1/8 " fit in Kia Niro 2023?
Yes. With seats up, it fits with +8⅞″ at Opening width. Best orientation: diagonal.
What is the tightest part?
The limiting factor is Opening width, with +8⅞″ margin in seats up.
Is the trunk opening the issue?
Yes. The tightest constraint is at the opening (Opening width) with +8⅞″ margin.
How tight is this fit?
This result is in the comfortable clearance band (+8⅞″ at Opening width).
Does it fit with seats up or seats down?
Seats up: Yes (+8⅞″). Seats down: Yes (+23¼″). Default selection follows YES > MAYBE > NO.
Can I load it diagonally?
Yes, diagonal is the best orientation for this check, with +8⅞″ 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.