I have been shopping remnants with an eye towards buying enough double wide to have a pro make a pleated tartan skirt for my fiance.

I finally have the top secret number for the widest part of her hips. It is a number between 28 and 38 inches.

My question is how much double wide do I reasonably need to supply to the pro seamstress?

I have the general idea that the more cloth I supply, the more pleats the seamstress can make. What I don't have is the foggiest notion how many pleats how deep a lady's tartan skirt ought to have.

1.3 meters of double wide to open, 1.5 meters to play hardball? 6 meters? I am asking because I don't know.

Thanks.