UP-126E Performance Edition

Responsiveness. Precision. Intuitive grace.

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Whether woodshedding in the practice room or exploring the joy of music at home, the BOSTON Upright Pianos bring genuine world-class tone and responsiveness within reach. 
Designed by STEINWAY & SONS, employing the unique patents and expertise that have made the name STEINWAY synonymous with excellence, the Boston line of grand and upright pianos represents a singular achievement in instrument building: a superior playing experience at a price level never before thought possible.

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Available Model UP-126E PE

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The New Model UP-126E PE Customer

Who's it for?

  • Piano teachers and serious students seeking the best in production vertical piano performance in a more compact size than a full 52″ upright piano.

Who's it not for?

  • Buyers seeking a low-cost entry level vertical style piano.
  • Want even more vertical piano power (consider Boston UP132E).
Man with a piano cut out

Finishes/Cabinet Types

Model Description Finish

UP-126E EP

Ebony Polish Upright


UP-126E MP

Mahogany Polished Upright


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Model UP-126E PE Specifications

The Boston UP-126E Performance Edition makes a great addition to any teaching studio or home. A longer music rest accommodates more music. Height: 49½" (126 cm)


Height: 126 cm (49½”)
Width: 151 cm (59¼”)
Depth: 62 cm (24¼”)
Net Weight: 278 kg (612 lb)


Full-length laminated spruce posts assure that the backframe will remain straight and consistent and tuning will remain stable. Spruce fill-blocks between posts at the top and bottom of the backframe, capped with a maple backboard for positive vertical alignment. Solid filler blocks (no hollow spots). 5 posts. Total cross sectional area: 450 cm2 (69.8 in2). Thickness of post: 9 cm (3½”). Width of post: 10 cm (4″).


Overstrung: Lower tension scale for longer sustaining tone and longer life of the whole piano. 16,727 kg (36,877 lb) tension.


Made from durable spruce to assure strong and constant support of the strings bearing down on the soundboard. Ribs are fully let-in to the liner to support the important soundboard crown and prevent the piano from losing its tone. Number of ribs: 11

Tuning Pins

Nickel-plated steel, cut threaded.


Treble: Highest grade steel (in half size increments). Number of sizes: 12. Lowest tenor note: 28. Bass: Steel core wire wound with solid copper. Number 1 speaking length: 117.3 cm (46.2″)


Premium wool topfelt over premium wool underfelt. Weight of topfelt: 9.4 kg (20.8 lb). Compression-wired to retain permanent shape. Mahogany moldings. Hammer-shanks from select resilient maple or horn-beam. Computer-designed pear-shaped hammers with reinforced shoulders result in superior tone, increased durability and greater voicing ability.


Genuine spruce, individually balanced and weighted. Synthetic ivory and ebony key covers. Length of key: 36.8 cm (14.5″).


Made from laminated hardwood. Strong, rugged construction provides a solid mount for the keyframe and action allowing for precise and prolonged action regulation. Keybed thickness is 42 mm.


Soft (half-blow), muffler, and sustaining (damper) pedals.




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The 2023 Piano Buyer’s Guide

Pianists deserve a resource that’s easy to follow and gets them closer to the piano of their dreams without the confusion in between. Our Piano Buyer’s Guide offers tips, facts, and insights into the world of pianos so you can get the answers you need to make the wisest decision.

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