Polished Concrete – Public Storage, San Francisco Area

Twenty-nine thousand five hundred square feet of office space, elevator lobbies and unit corridors across multiple Public Storage locations in the San Francisco area. Forty-five working days.

LocationSan Francisco Area, CA
Surface area29,500 sqft
BuildingCommercial Self-Storage
Working areaOffice spaces, elevator lobby and unit corridors
Duration45 Working Days
ScopeFull Polished Concrete

What we walked into

Corridors barely wider than the machine. Roll-up unit doors on both sides for the full length of every run, with the original slab underneath carrying years of trolley traffic, scuffing and staining.

What we did

Ground and polished the slab in place, corridor by corridor. On a run this narrow there is no room to work around anything, so the passes have to be straight and the edges cut in tight against the unit doors on both sides.

What made it difficult

The width is the whole problem. A walk-behind grinder fills the corridor, which means every pass is a single line with no room to overlap from the side, and the extraction hose has to be dragged the length of the run behind it. Multiply that across several locations and 29,500 sqft and it becomes a scheduling job as much as a floor job.

The result

Continuous polished corridors that carry the overhead light down their full length. Nothing was coated, so there is no edge to lift where trolleys and roll-up doors meet the floor.

Photos