Question: is a 2x4 stronger than a 2x6?
Answer: For example, a 4-foot section of wall would have three 2x4s, but only two 2x6s. ... In bending, however, such as from a wind load, a 2x6 wall is considerably stronger. In tall walls, where column buckling might be a factor, a 2x6 wall would be stronger if a structural sheathing was used.