A five-story, carpeted circular staircase at Fortune Brands Innovations’ new global headquarters in Deerfield does more than help people get from floor to floor.

Producers of products like Moen Faucets and Master Lock, among many other well-known lines, Fortune Brands recently expanded its corporate headquarters from a smaller Deerfield location with 135 people to two midrise buildings where more than 1,000 people may eventually work.

Leigh Avsec, the company’s head of external affairs, said the staircase — there is one in each of the two buildings — is a place where unscheduled meetings of people from different departments within the organization take place. There is also an elevator.

“I have so many original conversations there,” Avsec said. “It creates good personal connections. It’s

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