"We worked closely with Northwestern Mutual, the engineer and the general construction manager to ensure the highest quality of work and to maintain the sophistication and integrity of this building," said Paul Grunau, Grunau Co. president.

The unique nature of the underfloor system prompted Grunau Co. to research the system extensively to learn as much about it as possible prior to installation. "The underfloor system was one of the things for which Grunau Co. felt particularly responsible," said Jeff Kuhnke, Grunau Co. project manager. "We spent a lot of time learning how to best do our job. We took it upon ourselves to help coordinate the other trades' work with the system."