What is the standard size of column in 2 storey house?

The standard size of columns in a two-story house typically ranges from 6x6 inches to 12x12 inches, depending on factors like the building's load requirements, design, and materials used. For residential construction, a common choice is 8x8 inches or 10x10 inches for wooden columns, while concrete columns may vary in dimensions based on structural engineering specifications. It's essential to consult with a structural engineer to determine the appropriate size to ensure safety and stability.