Building a 243,000-square-foot reinforced concrete warehouse floor to meet specified pour widths of 56 feet and floor flatness and levelness requirements of FF35 and FL25 is a challenge for any concrete contractor. Meidling Concrete Inc. had to build such a floor for a Shopko Stores Inc. distribution center in Boise, Idaho. But complicating the job were cold temperatures, a completion deadline of 1 month, and specifications for shrinkage-compensating concrete and surface-applied traprock.

Meidling completed floor construction in 25 working days, 1 week ahead of schedule.