Compare guitar tonewoods by stiffness-to-weight ratio and resonant frequency. Supports sitka spruce, cedar, mahogany, maple, rosewood, ebony, walnut and alder.
A high stiffness-to-weight ratio means the wood can vibrate efficiently — producing a more responsive and dynamic tone without excessive mass.
Sitka spruce has one of the highest ratios among commonly used tonewoods, making it ideal for soundboards.