KALLAX Shelf unit, white, 30 1/8x30 1/8″
+7″ margin
All items that fit an Audi A1 2020
Will fit in an ?
No, it won't fit.
It will not fit in this setup: BILLY Bookcase, black oak effect, 31 1/2x11x79 1/2″ is too large for an Audi A1 2020 with seats up.
Fit Details
With seats up, This package will not fit in this setup. The blocker is opening width, and you're short by 27⅞″ even with diagonal loading. We're about 95% confident in this estimate.
BILLY Bookcase, black oak effect, 31 1/2x11x79 1/2″
Box: 81¼″ × 11¾″ × 5″ · 86 lb 15 oz
Based on IKEA US (United States).
Package dimensions last checked and updated on Oct 21, 2026
Package
Status
Limiting factor
Best orientation
Package #1
81¼″ × 11¾″ × 5″
Status:27⅞″ short
Limited by
Limiting factor:Opening width
Best orientation:Diagonal
Vehicle limits
Opening width / height above sill
39″ / 24⅜″
Cargo width / height
39″ / 30¾″
Cargo length seats up / down
26⅜″ / 53⅛″
Loading sill height
28¾″
Audi A1 2020
Measurements last checked and updated on Oct 21, 2026
Helpful tips
Use these loading tips to improve your chances of fitting BILLY Bookcase, black oak effect, 31 1/2x11x79 1/2″ in Audi A1 2020.
Optimize opening width
Keep the narrow edge leading while entering the opening.
Load diagonally first
Load diagonally first, then straighten once inside.
Try fitting alternatives
Check the Similar items that fit section for safer alternatives.
Alternatives that fit in Audi A1 2020
Ranked by fit margin and package-dimension similarity. This improves as we index more items.
About the Audi A1 2020 boot
Width is the easy part of the A1's boot. The opening is 39″ across, and the floor never gets narrower than that. Length is tighter. Seats up, the floor is just 26⅜″ long, and folding them gives you another 26¾″, for 53⅛″, which takes shorter flat packs but not the longest. Height is limited too, with 24⅜″ of clear height above a loading sill 28¾″ off the ground and the floor 6¼″ lower still. With the seats up the floor is wider than it is long, so a box too long to go in front to back may still fit across it, or at an angle on its side.
About the BILLY Bookcase, black oak effect, 31 1/2x11x79 1/2″ package
You get the black oak effect BILLY in a single box, 81¼″ long, 11¾″ wide and 5″ thick. It weighs 86 lb 15 oz, and over that length the weight is hard to control, so plan on two of you, one at each end. Lying straight, it needs 81¼″ of boot floor, though its width and thickness still matter. Lift together on a count, so neither of you takes the full weight, even for a second. Set it down the same way, both ends at once.
Frequently asked questions
Find quick answers about fit for BILLY Bookcase, black oak effect, 31 1/2x11x79 1/2″ in Audi A1 2020, including seats up vs seats down, limiting factor, best orientation, and package-by-package margins.
Will BILLY Bookcase, black oak effect, 31 1/2x11x79 1/2″ fit in Audi A1 2020?
No. With seats up, it is short by 27⅞″ at Opening width, even with diagonal loading.
What is the tightest part?
The limiting factor is Opening width, with -27⅞″ margin in seats up.
Why does it not fit?
The blocker is Opening width: with seats up, the box is 27⅞″ bigger than the space there.
Can I load it diagonally?
Yes, diagonal is the best orientation for this check, with -27⅞″ around the limiting point.
Which loading orientation works best?
Diagonal is the best orientation for this result in seats up.
Does it fit with seats up or seats down?
Seats up: No (-27⅞″). Seats down: No (-14⅜″). Default selection follows YES > MAYBE > NO.
What do YES, MAYBE and NO mean here?
YES means there is at least 2⅜″ to spare at the tightest point, in the best way the box can go in. MAYBE means it fits on paper, but with less than 2⅜″ to spare, so trim, the parcel shelf or the loading angle can decide it. NO means the box is bigger than the space at its tightest point, whichever way it goes in. Every margin on this page is that real gap: the car's measurement minus the box's.
What should I do instead?
Use the Helpful tips & alternatives section to choose a smaller item, different orientation, or split-load plan.
Is the trunk opening the issue?
Yes. The tightest constraint is at the opening (Opening width) with -27⅞″ margin.
How tight is this fit?
This result is in the clear no-fit band (-27⅞″ at Opening width).