KALLAX Shelf unit, white, 16 3/8x57 5/8 "
+14½″ margin
Will fit in a ?
Maybe, it's a tight fit.
It might fit, but it's tight: VITTSJÖ Shelf unit, black-brown/glass, 39 3/8x68 7/8 " is borderline diagonally in a Tesla Model Y 2023 with seats down.
Fit Details
With seats down, It's close. This package is a borderline fit at cargo length (+1⅛″), best loaded diagonal. See the Helpful tips section below for practical loading suggestions. We're about 75% confident in this estimate.
VITTSJÖ Shelf unit, black-brown/glass, 39 3/8x68 7/8 "
Box: 79¼″ × 15¼″ × 3½″ · 60 lb 12 oz
Based on IKEA US (United States).
Package dimensions last checked and updated on Jul 29, 2026
Package
Status
Limiting factor
Best orientation
Package #1
79¼″ × 15¼″ × 3½″
Status:+1⅛″ tight
Limited by
Limiting factor:Cargo length
Best orientation:Diagonal
Vehicle limits
Opening width / height
39¾″ / 27⅛″
Cargo width / height
37⅜″ / 27⅛″
Cargo length seats up / down
43¾″ / 76⅜″
Loading sill height
27½″
Tesla Model Y 2023
Measurements last checked and updated on Mar 10, 2026
Helpful tips
Use these loading tips to improve your chances of fitting VITTSJÖ Shelf unit, black-brown/glass, 39 3/8x68 7/8 " in Tesla Model Y 2023.
Use available cargo length
Push the package fully toward the seat backs to use all cargo length.
Load diagonally first
Load diagonally first, then straighten once inside.
Clear real-world obstacles
Clear the trunk before loading. Existing cargo, trunk cover, and wheel-arch bumps can reduce usable space.
Alternatives that fit in Tesla Model Y 2023
Ranked by fit margin and package-dimension similarity. This improves as we index more items.
About the Tesla Model Y 2023 boot
The Model Y boot is long and flat, with a deep floor even before you fold. The opening is 39¾″ wide × 27⅛″ tall, and the floor already runs 43¾″ with the seats up, stretching to 76⅜″ folded, a gain of 32⅝″. The sill height is 27½″ with a 0″ drop, so the floor sits level with the lip and items slide straight in. The opening is on the low side, so tall boxes can catch on the way through. It is excellent for long flat-packs and big shops, less so for very tall items. Lead with the long edge and slide it in flat.
About the VITTSJÖ Shelf unit, black-brown/glass, 39 3/8x68 7/8 " package
VITTSJÖ ships as one long, flat carton, 79¼″ × 15¼″ × 3½″ and 60 lb 12 oz. The length is the awkward part: a rigid flat-pack just under 80 inches that will not bend around a tight boot mouth, and there is glass inside, so the box does not forgive a hard knock. A car that takes it easily is an estate, an SUV, or a hatchback with the rear seats folded flat. In anything smaller, load it diagonally from a folded seat back toward the boot, longest edge leading, and rest it on a blanket. Keep it printed side up so the glass shelves stay flat, and slide it in rather than drop it.
Frequently asked questions
Find quick answers about fit for VITTSJÖ Shelf unit, black-brown/glass, 39 3/8x68 7/8 " in Tesla Model Y 2023, including seats up vs seats down, limiting factor, best orientation, and package-by-package margins.
Will VITTSJÖ Shelf unit, black-brown/glass, 39 3/8x68 7/8 " fit in Tesla Model Y 2023?
Maybe. With seats down, this is a borderline fit at Cargo length (+1⅛″). Best orientation: diagonal.
What is the tightest part?
The limiting factor is Cargo length, with +1⅛″ margin in seats down.
Do I need to fold the seats?
Results differ by configuration. Seats up is No and seats down is Maybe.
What could change the result in real life?
Cargo liners, wheel-arch bumps, the trunk cover, and items already in the trunk can reduce usable space. Measure the tightest point if the fit is close.
How tight is this fit?
This result is in the borderline band (+1⅛″ at Cargo length).
Does it fit with seats up or seats down?
Seats up: No (-16⅝″). Seats down: Maybe (+1⅛″). Default selection follows YES > MAYBE > NO.
What can I try to make it work?
Use diagonal loading and focus on cargo length. Push the package fully toward the seat backs to use all cargo length. Load diagonally first, then straighten once inside.
Can I load it diagonally?
Yes, diagonal is the best orientation for this check, with +1⅛″ around the limiting point.
Which loading orientation works best?
Diagonal is the best orientation for this result in seats down.
How confident is this result?
Confidence is 75 out of 100 based on available dimensions and margin tightness.