Metal Studs
CSI Division 05, Metals
Light-gauge, C-shaped steel framing members used to build interior partition walls and, in some cases, exterior wall backup framing, the modern standard replacement for wood studs in most commercial construction due to steel's dimensional consistency and fire resistance.
Why it matters
Metal stud spacing, gauge (thickness), and bracing all have to match what the drawings specify for a given wall's height and loading; a wall that looks the same from the outside can be framed to very different structural standards depending on what it's actually required to support.
On a real project
A commercial interior buildout frames partition walls with metal studs spaced at the specification's required interval, with additional bracing and heavier-gauge studs used specifically at walls tall enough to need the extra support.
Who this matters most to
A Carpenter typically frames metal stud walls in commercial construction, a skill set that overlaps with but differs somewhat from wood framing. A Drywall Installer depends on properly spaced and plumb stud framing underneath, since drywall applied over an out-of-plumb wall telegraphs every framing flaw straight through to the finished surface.
Where this goes wrong
A framing crew uses a lighter stud gauge than specified on a tall partition wall to save material cost, and the substitution isn't caught before drywall covers it. The wall develops a visible bow over time under normal building movement, a defect that traces directly back to framing that didn't meet the wall's actual height and loading requirements.