There’s magic in a 6′ long grand piano (1m 80cm). Crossing the 6′ threshold makes grand pianos truly divine and if you don’t believe me, simply sit down at a 6′ long piano after playing both a baby grand (5′ length) and a medium sized grand (5’7″ length) and you’ll appreciate how grand pianos blossom at 6′ in length and larger. They come at a price, however in terms of size, sound and financial commitment. With greater length comes the need for greater structural integrity. While smaller grands have approximately 19 tons of tension pulling on the strings, concert grands (9′ in length) can have upwards of 30 tons! For more information about string tension, please refer to the article entitled How Often Should I Tune My Piano? And so with length, comes greater framework requirements to reinforce greater demands of string tension. Thus, the price of 6′ grand pianos accelerates significantly. When you think of it, one foot in length difference in a home doesn’t make a massive difference in home decor but one foot in piano string length is massive. The bottom “speaking length” of bass strings on a 6′ grand is unparalleled in upright pianos with modern manufacturing. These bottom strings provide wonderful depth of tone and with added square inches of soundboard material, the projection of 1m 80cm long pianos can be powerful. While this size is still perfect for home use, the 6′ long grand size also gets utilized by churches, schools, theaters, restaurants and other venues that desire a big sound without getting into concert grand budget and space requirements. For more information about piano sizes, please refer to our article, What Size Piano Should I Buy? If you notice that most of the model numbers range from 180-193, that’s usually the length of the piano in centimeters. Additionally, models such as G61, that’s the length in feet and inches ie 6′ 1″.
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There are 4 common sizes of upright pianos and 6 categories of grand sizes available. For a detailed description of each size, click on the desired size of piano. Upright pianos are qualified by height and grand pianos are measured by length. Assuming that most pianos have 88 standard-sized keys, piano width is similar. Depth of upright pianos range from 21″ to 27″ (52cm-67cm).