Our kiln-dried fingerboards have flat undersides; the width is slightly tapered, except as noted. They are unfretted (no inlays) and ready for trimming to fit a variety of neck widths. Fret slots are .023" wide. Fingerboard dimensions are approximate.
Slotted Fingerboard for Martin Guitar
25.34" scale 16" radius 20 slots This scale from Martin is commonly described as 25.4" but is actually 25.34".