Brentwood Public Library — Brentwood, CA

At the Cross Section of Community

Brentwood Public Library CLT Panel Installation
22,500 SF
FOG Studio
Lathrop Construction
Blake Marvin

The City of Brentwood is upgrading its public library to better serve as a central community hub. New construction (a two-story main building and adjacent one-story community room) will replace the former library, paving the way for innovative use of emerging materials. Holmes Structures is providing structural engineering design for the project.

The two-story main building will include a children’s area and story time nook on the ground floor as well as additional library space on the upper level. The main building is organized around a central double height space with a feature stair. There will also be a seismically separate one-story community room adjacent to the main building. The various areas will be connected with a central exterior courtyard featuring plants native to California in filtration planters.

Holmes Structures met the architect’s request to showcase CLT (Cross-Laminated Timber), a material gaining traction in the US for its warm, inviting aesthetic and sustainable qualities. FOG Studio was the first architectural firm to use CLT in California and sought to push the material’s potential. A CLT diaphragm on the roof and floor plates uses plywood splines and screws to drag an earthquake’s lateral load into steel moment-resisting frames. Additionally, a double-height space over the lobby draws visitors’ gazes to an exposed CLT ceiling and exposed steel framing.

Brentwood Public Library truck unloads CLT panels
BrentwoodPublic Library Construction Cross Section with CLT
Construction workers on CLT roof at Brentwood Public Library
Aerial view of CLT roof at Brentwood Public Library
CLT close-up texture shot
Holmes Structures engineer Megan Stringer onsite with Lathrop Construction
Aerial shot of Brentwood Public Library CLT Installation

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