Replacement of Symphony Hall Performance Floor2023-08-09T09:19:17-04:00

Replacement of Symphony Hall Performance Floor

Boston Symphony Orchestra

Built in 1900, Symphony Hall is a beloved national landmark that is believed to be one of only three perfect concert halls in the world. Its maple performance floor has held a mystical reputation among musicians over the last century because of its fundamental contribution to the acoustical signature of the hall. When this floor, which had not been replaced since its original construction 105 years prior, was judged to be in need of repair, highly specialized wood scientists and acousticians were enlisted. The project began with the meticulous disassembly of the existing structure to ensure that the replacement floor would be installed in the same exacting detail.

“Walsh Brothers' leadership in guiding the construction team through the project was instrumental in its successful results. Symphony Hall's great acoustics were preserved. The musicians of the BSO and music lovers throughout the world applaud your fine work.”

Orchestra Manager
Boston Symphony Orchestra

Exhaustive research was conducted on a host of issues including special protocols, materials, and historical construction techniques from 100 years ago. Details of the project approach required an in-depth understanding of wood characteristics such as humidification tendencies, vibration induction dimensions, and the dynamic stiffness of the floor system (also known as resonance). The project’s schedule, just 10 weeks when the hall would be “dark”, incorporated a four-week wood acclimation period during which the lumber would expand and contract.

Photo Credits: Michael Lutch


Boston, MA


Ann Beha Architects


2007 Associated General Contractors Build New England Honor Award