A one-dimensional soundboard (top) is the same thickness across its width. This piano does not have a tapered soundboard or this manufacturer does not specify whether or not the soundboard is tapered on this model. However, if a piano has a tapered soundboard, it is generally something that a manufacturer would want a shopper to know. All else being equal, a tapered soundboard will provide deeper, richer tone and longer sustain. All Steinway, Boston, and Essex pianos have tapered soundboards.