Lee,

Your charcoal kilt is actually 13 oz, but because it's a tweed, rather than a worsted wool, it's going to feel "thicker" than standard 13 oz worsted.

But to answer your question about regimental weight cloth, I've made a few box pelated kilts from 18 oz regimental weight (which is the weight it's made in these days) and it does absolutely beautifully! I think a few members of this board actually have regimental weight kilts I've made for them.

I can get regimental weight cloth in Gordon, Hunting Stewart, Royal Stewart, MacKenzie, and Cameron of Erracht, and it's priced the same as "rare select" heavy weight, which means $375 for a kilt for an average sized man.

Aye,
Matt