T-molding should be used primarily as an interior transition strip when joining two adjacent flooring surfaces that sit at the exact same height and require an expansion gap between rooms. It is commonly installed in doorways, narrow hallways, or large open-concept floor plans where wood, laminate, or luxury vinyl plank floors transition from one room to another. The T-shaped profile bridges the necessary expansion gap left between the two flooring fields, concealing the raw cut edges while allowing both floors to float and expand or contract independently with seasonal temperature and humidity shifts.
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