How Tall is Jack Skellington?

The Correct Answer is:

I know a lot of people believe he’s around 8’5″, but he said he was dead. (“…and now that I’m dead, I may remove my hat and recite Shakespearean quotes”) So, he had to be alive at some point, and it’s implausible that he grew to superhuman height while living. Even though he appears to be extremely tall, I would estimate him to be around 6’5″, but that’s simply how tall he appeared in the film. However, shortly after the film’s release, a product dubbed a “life size cardboard cutout” of Jack Skellington with a height of 5’10” was released, thus it’s very plausible that’s his height.