Yeah, that's interesting. They also seem to change lengths a lot. It's been so long since I've read the books I don't remember if this stuff was addressed.
My first Harry Wand was 11in but felt too small. I decided to make it 14in for adult sized hands
I also remember some debate among Potter fans on whether the movies are using the shaft length or the entire length as their measurements as a technicality to make them bigger. If I recall, if you measure the shaft, without the handle, on Harry's movie wand, it comes out to around 11 inches. However, I believe this only works on Harry's wand. If you try it with Voldemort's wand, the entire length comes out to be around 13.5 inches.I think the movie and Noble Collection wands are 14"... They needed to make the wands longer than in the books because if they used the book measurements, it wouldn't be that nice on-screen. My wands are mostly between 13" to 16", depending on whose wand it is. But I pretty much use 14" as my go to length.
Sounds just like the books to me. Nice thinking though.I also remember some debate among Potter fans on whether the movies are using the shaft length or the entire length as their measurements as a technicality to make them bigger. If I recall, if you measure the shaft, without the handle, on Harry's movie wand, it comes out to around 11 inches. However, I believe this only works on Harry's wand. If you try it with Voldemort's wand, the entire length comes out to be around 13.5 inches.