The Kohler & Campbell piano is traditionally built using materials from all over the world. The soundboard is made from premium grade spruce, seasoned, contoured and tapered. The rim is constructed of hard rock maple with beams of laminated spruce to resist warping and tenon jointed to the rim using old world craftsmanship of dowels instead of screws. Bridges are vertically laminated maple capped with solid hard rock maple. These pianos are the very best value in our world market today.