There really isn't an answer to this question...
There's no such thing as a "size" for a professional kiltmaker. Each kilt is sewn to the particular owner's measurements. Now there are some very reputable companies that sell "off the rack" kilts in standard 32", 34", etc measurements...but they aren't made by professional kiltmakers, per se. they are typically machine sewn in a factory to standardized dimensions.
"If there must be trouble, let it be in my day, that my child may have peace." -- Thomas Paine
Scottish-American Military Society Post 1921