Q: I don't understand Martin's "0" method of naming acoustic steel-string guitar models. What's the difference between them all?
A: The "0" naming method is used by Martin to indicate the size of the guitar's body.
12-fret models (6-string)
- 0 - body length: 19-1/8", body width: 13-1/2"
- 00 - body length: 19-5/8", body width: 14-1/8"
- 000/OM - body length: 20-9/16", body width: 15"
- D - body length: 21", body width: 15-5/8"
14-fret models (6- and 12-string)
- 00 - body length: 18-7/8", body width: 14-5/16"
- 000/OM - body length: 19-3/8", body width: 15"
- 0000/M/J - body length: 20-1/8", body width: 1"
- D - body length: 20", body width: 15-5/8"