This second home along the Tennessee River fosters relaxed weekends for teenage children, extended family members and friends. Indoor and outdoor spaces merge into a simple, understandable form that embraces the natural setting. Flexible and functional interiors combine with wrap-around porches, allowing the 1,544-square-feet cabin to live larger than its actual size. Sturdy, low-maintenance materials and an economy of construction enhance the casual spirit of a retreat along the river.