People often have problems understanding what a "board foot" is. It's not a linear distance, despite the term "foot" in it. Yes, we all know its 144 cubic inches, that doesn't always help people understand it's a volume measure.
Today I went off on a tangent and came up with a new way of describing "board feet" to newbies.
It's just over half a gallon of tree (~5/8 gal)
Next time you're trying to describe "board feet" to someone and they're not getting it, try that and see if it helps.
DJ