Staircase and Metal Tread The industrial stair leads to the upper level, where the bedrooms, bathrooms, and play space are located.  Photo 5 of 18 in 18 Smart and Surprising Under-Stair Storage Solutions from How to Play FlatPak

18 Smart and Surprising Under-Stair Storage Solutions

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Architect Charlie Lazor designed this 2,600-square-foot prefab home for his family in Minneapolis. The post-and-beam construction includes an open-riser metal staircase, which allows for extra storage and seating near the living room.