Rob Lien

Rob Lien's Posts

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    Like many concrete floor contractors, we were just plain scared of the "F" word: F-number specifications for concrete floors. Even though we'd been a concrete contractor in California since 1906, there had not been any floor projects in our area requiring F-number flatness. The Nestle distribution center, the first project in our area to include floor flatness specifications using F-numbers, is a tilt-up concrete building with a floor area of 700,000 square feet.

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