having made a few of these, I have to agree with Steve, especially in terms of the material weight. I've had good luck with Marton Mills PV for womens short skirts.

One little trick.... in a Mans kilt we just measure the length all around, pick one number and start ripping fabric.

That kind of doesn't work with womens skirts, depending on the shape of the woman. I once made a skirt for a woman with...hmmmm....how to put it....rather substantial (strong) buttocks and I measured my usual thing for the fell and drop and cut the material straight. However, the slope of her upper butt, combined with the long curve of the middle butt was SIGNIFICANTLY longer than the straight drop from under her navel to where the kilt hit her on the upper thigh. Upshot was, what seemed just fine from in front was uh...rather "spectacular" from behind.

When I re-made it, I tried a trick...I cut out new material, and the original cut from the flat cloth was straight, like always. But I made that cut with the BACK of the kilt in mind. If I'd left it like that, the front of the kilt would have been too long. What I did was remove about an inch from the cloth where the aprons are, from the waistband area (not the bottom of the kilt) this needs to be "eased in" so that there's not a jagged transition from the tartan pattern in the back to the front.

I don't know if that's clear or not. It worked OK. This was not a billie kilt, obviously...

You've been warned.