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Engelmann Spruce Tonewood Grades
Grading of tone wood is very subjective to the eye and experience of the grader. The grade description below attempts to capture the major characteristics involved in assessing the soundboards and will be used as a guide.
Split: Premium grade, hand split, and straight grain.
Sawn #1:Medium to fine grain width with light colour and sawn vertical grain.
Sawn #2: May have small work around knots or minor run out. Often has more colour variation and wider grain.
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" |
