Piano Soundboard

The soundboard is the heart of the piano as it provides the full and rich sound. So if the piano with a little age on it an has a cracked soundboard is that will affect its sound? let’s see.. The soundboard is a large, thin wooden plate which acts as an amplifier of the sound produced by the vibrating strings. It’s purpose is to radiate a large volume of sound over a wide frequency range.


The soundboard is not one solid piece of wood, but is made of many smaller planks that are glued together. The wood used for these planks is Sitka spruce – a wood that is lightweight and flexible, yet still very strong.

The top of the soundboard has a crown, or a slight dome, that curves up towards the strings. The crown allows the strings to set firmly upon the bridge. The strings are pulled over the bridge at an extremely high tension.

The pianos that have their soundboards replaced are often pianos that have been exposed to adverse conditions.



Soundboards vary in size depending on how large the piano is. A good quality soundboard can last more than 100 years.

A crack in a soundboard is not detrimental to tone and is more cosmetic than anything.. Many pianos have separations and “cracks” in the soundboards but still sound good.

A cracked soundboard in a piano can potentially affect the instrument’s sound and performance, but it doesn’t necessarily mean that the piano is completely destroyed. The soundboard is an essential component of a piano’s acoustic system. It helps amplify and resonate the vibrations produced by the strings, creating the instrument’s characteristic tone.

When a soundboard is cracked, it can disrupt the sound transmission and resonance, leading to changes in the piano’s overall tonal quality. The severity of the impact will depend on the size and location of the crack. Small cracks may have minimal effects, while larger or multiple cracks can cause more noticeable problems.

In some cases, a cracked soundboard can be repaired by a skilled piano technician. They may use techniques such as patching or reinforcing the crack to restore the soundboard’s functionality. However, if the crack is extensive or the soundboard is severely damaged, it may require a more substantial repair or even replacement. The cost and feasibility of the repair will depend on the specific circumstances.

It’s worth noting that assessing the condition of a piano and determining the extent of damage is best left to a professional piano technician. They have the expertise and knowledge to evaluate the instrument thoroughly and provide accurate advice on the necessary repairs.

If you suspect that your piano’s soundboard is cracked or damaged, I recommend reaching out to a qualified piano technician who can inspect the instrument and provide appropriate recommendations for repair or maintenance.

As long as the structure of the soundboard remains solid, with ribs and bridges adhering correctly to the surface of the soundboard, cracks will have very little to no impact on the overall sound.

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