The deck of Gaylen Byker’s Lake Michigan home isn’t just big. Measuring about 6,000 square feet, it’s got its own traffic lane.

The Brazilian ipe wood decks are perched on a dune overlooking the lake and include an outdoor kitchen, a resistance-swimming pool, spa, fireplace and lounge areas. The traffic lane is actually an adjoining steel deck, which is used by an electric cart to shuttle visitors across a ¼-mile bridge at the base of the property.

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