I didn't but it's 44" long, 12" wide and 36" high. These are the longest measurements as it's not square.
Regarding size, the only issue really is carrying in car. The biggest we have is a Skoda Octavia estate which normally you'd think was a pretty reasonable size but to get into car you have to fold rear seats down. So if it's just wife and I in car no issue but if our kids are coming on holiday with us then either they or bike box can't fit. The kids are adults but we do go away together once or twice a year so on that occasion I'll have to hire bike if flying.
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