Thank you very much for your question. The distance from the top of roller to its bottom is around 6 inches.

Thanks so much. I read through the specs (as limited as they are) and it said to allow 12" for the hardware. Seemed like a lot based on the image and I am glad you were able the clarify things. We’re having our barn doors custom made and the space for one of the doors would be really tight if we had to allow a foot of headroom. What kind of shipping time should I expect?

b

It usually arrives within a week.