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Instrument Billet Size Chart:
All measurements are for each half of the billet size. For one piece tops, double the width.
| Instrument | Length | Width | Spine | Length | Width | Spine | |
|---|---|---|---|---|---|---|---|
| Violin | 406 mm | 114 mm | 25 mm | 16" | 4.5" | 1" | |
| Viola | 482 mm | 139 mm | 31 mm | 19" | 5.5" | 1.25" | |
| Cello | 812 mm | 228 mm | 38 mm | 32" | 9" | 1.5" | |
| Double Bass 4/4 | 1220 mm | 355 mm | 64 mm | 48" | 14" | 2.5" | |
| Double Bass 3/4 | 1220 mm | 342 mm | 64 mm | 48" | 13.5" | 2.5" | |
| Double Bass 5/8 | 1168 mm | 304 mm | 50 mm | 46" | 12" | 2" | |
| Archtop Guitar | 558 mm | 228 mm | 31 mm | 22" | 9" | 1.25" | |
| Dreadnought Guitar | 558 mm | 228 mm | 5 mm | 22" | 9" | 0.2" | |
| OM/000 Guitar | 482 mm | 203 mm | 5 mm | 19" | 8" | 0.2" | |
| Parlor/0 Guitar | 482 mm | 177 mm | 5 mm | 19" | 7" | 0.2" | |
| Baritone Ukulele | 355 mm | 127 mm | 5 mm | 14" | 5" | 0.2" | |
| Tenor Ukulele | 304 mm | 114 mm | 5 mm | 12" | 4.5" | 0.2" | |
| Concert Ukulele | 279 mm | 101 mm | 5 mm | 11" | 4" | 0.2" | |
| Flat Mandolin | 355 mm | 127 mm | 5 mm | 14" | 5" | 0.2" |
