Will fit in a ?

Yes, it will fit!

Good news: FJÄLLBO Shelf unit, black, 20 1/8x53 1/2 " should fit diagonally in a Mazda CX-5 2023 with seats down.

Mazda CX-5 2023

Fit Details

With seats down, Good news - this package should fit. You have about +15⅛″ of clearance at opening height when loading diagonal. We're about 95% confident in this estimate.

FJÄLLBO Shelf unit, black, 20 1/8x53 1/2 "

FJÄLLBO Shelf unit, black, 20 1/8x53 1/2 "

Box: 53″ × 14¾″ × 3¾″ · 24 lb 4 oz

Based on IKEA US (United States).

Package dimensions last checked and updated on Aug 29, 2026

  • Package #1

    53″ × 14¾″ × 3¾″

    Status:+15⅛″ margin

    Limiting factor:Opening height

    Best orientation:Diagonal

Vehicle limits

Trunk limits for Mazda CX-5 2023

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

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 FJÄLLBO Shelf unit, black, 20 1/8x53 1/2 " package

FJÄLLBO ships as one flat box, 53″ long by 14¾″ wide and just 3¾″ thick, at 24 lb 4 oz. The length is the only real problem: 53″ rarely clears a trunk opening with the seats up, so plan on folding the rear bench in anything smaller than a wagon. The box itself is a one-person carry, but the slim profile flexes if you hold it by one end; support the middle or carry it on edge. Angle it through the tailgate diagonally, long edge first, and let it lie flat on the folded floor. Check the label against your order before you leave the racking aisle.

Frequently asked questions

Find quick answers about fit for FJÄLLBO Shelf unit, black, 20 1/8x53 1/2 " in Mazda CX-5 2023, including seats up vs seats down, limiting factor, best orientation, and package-by-package margins.

Will FJÄLLBO Shelf unit, black, 20 1/8x53 1/2 " fit in Mazda CX-5 2023?

Yes. With seats down, it fits with +15⅛″ at Opening height. Best orientation: diagonal.

What is the tightest part?

The limiting factor is Opening height, with +15⅛″ margin in seats down.

Can I load it diagonally?

Yes, diagonal is the best orientation for this check, with +15⅛″ 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 95 out of 100 based on available dimensions and margin tightness.

Does it fit with seats up or seats down?

Seats up: No (-1⅜″). Seats down: Yes (+15⅛″). Default selection follows YES > MAYBE > NO.

Do I need to fold the seats?

Results differ by configuration. Seats up is No and seats down is Yes.

Is the trunk opening the issue?

Yes. The tightest constraint is at the opening (Opening height) with +15⅛″ margin.

How tight is this fit?

This result is in the comfortable clearance band (+15⅛″ at Opening height).