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What’s the difference between a structural and non-structural metal stud?

A structural stud is meant for use to resist environmental loads (dead, live, wind, snow, or earthquake). They usually have wider flanges and thicker galvanizing. Non-structural studs or ‘interior’ studs are meant for non-load bearing demising walls with gypsum sheathing. These studs typically have flanges that are 1-1/4” wide and have a dimpled surface texture. They often have less galvanizing than structural studs and are usually very thin, 33-mil or less.