The two prototype benches by Scott Burton are constructed of smooth honed red sandstone that are joined with pins between the seats and backs. The sandstone has distinct bedding planes that primarily run vertically through the stone.
The joints between the bench seats and backs have become loose and slightly separated and there was concern about the overall stability of the pieces. The outdoor climate and visitors sitting on the benches may have contributed to the weakening of the joints. Scuff marks from shoes and scratches in the stone from keys, jewelry or other metal objects marred the smoothly honed surfaces.
Pacific Masonry Restorations was contracted to repair the benches; specifically to separate the seats from the backs and install new pinning, to clean the surfaces and fill missing chips, cracks, scratches and spalls to the stone.