I found a site when I was first starting out and found it helpfull.
May I suggest you try looking at www.scottishdance.net/highland/makingkilt.html
This assumes you are making a tartan or plaid kilt.
If you are making a kilt from a solid color you can contact me at service@freedomkilts.com and I will give you some hints I use when making a Freedom Kilt.
Good luck--and make it sew.

Steve Ashton