Spruce is a type of tonewood commonly used for guitar soundboards and other stringed instruments. It is well-regarded for its tonal properties and resonant qualities. Soundboards made from spruce are graded based on several quality attributes. Higher-grade spruce features a more uniform color and tighter grain lines. Size 21.85" x 17.89" x 0.16" 554.99mm x 227.21mm x 4mm Sound Spruce-top guitars produce a rich tone with pronounced highs and lows. Unlike cedar, which radiates sound, spruce projects it more linearly. Spruce guitars feature a crisp high end, substantial bottom end, and impressive volume. Appearance Spruce wood is a whitish yellow, which turns golden yellow when finished. Red spruce features wider grain lines, a warmer color, and more color variation. Higher grades of red spruce possess more even color and closer grain lines. Grading LA grade tops, commonly known as paint grade, exhibit the highest level of variance. Each grade is designed to group similar individual quality attributes. While some variation in characteristics is expected within each grade, this variance decreases as the quality level increases. May have more visible grain irregularities, noticeable knots, and color inconsistencies. Uses Spruce wood is commonly used in the construction of acoustic and classical guitars, violins, pianos, and other stringed instruments