How to Measure Your Car Trunk Correctly

Measure the narrowest part of the trunk opening, not the widest-looking center. A box has to clear the hard gate before deeper cargo space matters. On many cars, the real limit sits lower near the trim, latch area, or where the body shape tapers inward.

Hold the tape measure level and take the number you would use if you were threading a rigid rectangle through the hatch. If you want to understand why that one number can control the whole result, How we calculate fit results explains how limiting factors work.

Measure opening height on the path the package will actually travel through. Do not use the highest visible point with the hatch open if the lower edge, trim, or angle of entry reduces the real clearance.

If the result is close, repeat both measurements once. Tight fits are decided by very small margins, and a second reading is often the fastest way to catch a generous first measurement.

Interior floor width answers a different question from opening width. Opening width tells you whether the box can enter. Interior floor width tells you whether it can sit flat once it is inside. Wheel arches, side trim, and storage pockets often remove usable width exactly where the box needs it most.

For a real borderline example, see KRAGSTA coffee table in Tesla Model Y 2023, where the fit stays tight because cargo width falls to 0 cm margin.

Measure the narrowest interior width at floor level or at the height where the box will actually sit. If the item is tall and must stay upright, also check the vertical clearance above that resting position.

Real obstacles matter on close fits. Parcel shelves, trunk covers, mats, hatch taper, and thick trim can remove the last few centimeters even after the box clears the opening.

If you want a practical next step after measuring, IKEA Pickup Day Checklist covers how to turn those measurements into a simple loading plan.

Measure cargo length twice: once with seats up and once with seats down. Some cars gain very little. Others gain enough to turn a failed trip into a clear YES. If the box only works with seats down, treat that as part of the plan, not a last-minute guess.

A good seat-setup example is NORDLI chest in Tesla Model Y 2023, where seats up is Maybe but seats down becomes Yes.

If you are still comparing which setup or which car is safer, use the vehicle list and the item catalog to narrow the decision before you start measuring.

Loading angle matters on long boxes, but it should not be used to justify unrealistic twisting. Use it as a warning that close fits deserve a stop rule and a second measurement at the tightest point.

Once you know the tight points on your car, you do not need to remeasure everything every time. On a close fit, a one-minute recheck is enough.

1. Confirm the narrowest opening width.
2. Check the usable opening height.
3. Measure the tightest interior floor width.
4. Measure the cargo length in the seat setup you will really use.
5. Remove anything that steals space if it would not stay in the car on pickup day.

Measure again when the result is close, when the seat setup changes, or when your first number came from a generous point. MAYBE results deserve a second look at the limiting factor before pickup.

If you want extra context before you commit, the FAQ and How it works pages explain how these measurements connect to the result you see on Car Fit Check.