Ursula von Rydingsvard (1942- ) is best known for her large-scale, structurally complex sculptures made from cedar beams, often displayed outdoors. These works change in dimension due to shifting environmental conditions, and may require supportive armatures and ongoing maintenance treatments to prevent pest and environmental damage. This presentation will address the treatment and installation of Czara z Babelkami (2006) at SFMOMA as part of the inaugural exhibition in the museum’s renovated galleries. The treatment involved close collaboration with the artist’s studio to flatten and stabilize the sections of the work in response to previous dimensional changes. A surface treatment and long-term maintenance plan involving the use of a biocide and wood sealant was also devised with the studio. This collaboration provided valuable insight into the construction of the work, parameters for acceptable changes, and a broader perspective of how this artist’s work is treated in other settings. Given the high seismic activity in San Francisco, a structural armature was designed in partnership with an engineer to support the work in case of a seismic emergency. The armature was designed to stabilize the work while allowing flexibility for further dimensional changes in response to outdoor environmental conditions. Installation on a newly renovated 5th floor terrace space necessitated extensive planning to move the sections safely with a crane and forklift, serving as a case study of project planning in unknown spaces.