Every wall starts with the same question: metal or lumber. In Los Angeles the answer swings on what the wall is doing — carrying load, dividing a tenant space, or standing up in a garage that has to resist fire. This guide covers where cold-formed steel framing wins, where Douglas fir still wins, and how to weigh the decision honestly across the whole assembly rather than stud by stud.
Which should you use?
Use steel for non-load-bearing interior partitions, especially in commercial tenant improvements, and anywhere fire rating, straightness, or termite resistance matters. Use wood for load-bearing walls in typical residential construction, for anything that needs to be nailed into later, and where the crew already frames in lumber every day. Most LA projects end up mixed: wood shear walls and bearing walls, steel partitions.
| Factor |
Steel Stud |
Wood Stud |
| Load bearing |
Heavy gauge only |
Standard |
| Combustible |
No |
Yes |
| Straightness |
Consistent |
Varies by piece |
| Termites, rot |
Immune |
Vulnerable |
| Cutting |
Snips or chop saw |
Circular saw |
What gauge actually means
Gauge is the steel thickness, and it decides what the stud can do. Supply Ontime stocks the two grades that cover nearly all interior work in the Drywall Steel Studs collection: 25-gauge EQ for standard non-load-bearing partitions and 20-gauge EQ where the wall needs more stiffness.
25-gauge is the drywall partition workhorse. A 3-5/8 in. x 10 ft. 25-gauge ProSTUD weighs a fraction of a comparable 2x4, ships flat, and goes up fast. It is not structural. Do not hang a header on it, do not use it to carry a roof, and do not use it where a cabinet run or a wall-mounted TV will load it without blocking.
20-gauge is the step up: stiffer walls, taller partitions, walls that will take heavy tile or millwork, and the gauge that structural engineers reach for when a metal partition needs to span higher than a standard ceiling. A 3-1/2 in. x 10 ft. 20-gauge ProSTUD also matches the depth of a nominal 2x4 wall, which keeps door jambs and trim details consistent when steel and wood meet in the same building.
Depth choices follow the job. 2-1/2 in. studs suit chase walls, furring, and closet partitions where a shallower footprint buys floor area. 3-5/8 in. is the default for a partition that needs to hold insulation and services. Stud lengths in 8, 9, and 10 ft. let you buy to the ceiling height instead of cutting every piece.
Track, trim, and the pieces people forget
Steel framing is a system, not a stud. Every steel wall needs track top and bottom — a 3-5/8 in. 20-gauge ProTRAK or the matching 25-gauge track, sized to the stud depth. Order track by the same depth as the stud or the wall will not assemble.
Then the trim pieces. L-trim in 1/2 in. and 5/8 in. finishes drywall edges where a wall meets a dissimilar surface. J-bead wraps a raw panel edge at an opening. Resilient channel — the single-leg RC-1 profile in 12 ft. lengths — decouples drywall from the framing to cut sound transmission, which is why it shows up constantly in LA multifamily demising walls and in home studios in Silver Lake and North Hollywood.
Fastening is different too. Steel studs take fine-thread drywall screws, not the coarse-thread screws that bite into wood; our guide to coarse vs. fine thread drywall screws covers why using the wrong one strips out and pops later.
Where wood still wins in Los Angeles
Residential load-bearing framing in LA is overwhelmingly kiln-dried Douglas fir, and for good reason. It carries load without an engineer's stamp on every wall, it accepts nails and screws anywhere along its length, and every framing crew in the county already owns the tools and the muscle memory. Our Douglas fir framing lumber guide covers grades and dimensions from 2x4 to 2x12.
Wood also wins wherever something has to be attached later. Backing for cabinets, grab bars, handrails, and TV mounts is a piece of blocking nailed between studs — trivial in wood, a small engineering exercise in steel. On a remodel where the finish scope is not fully drawn, that flexibility has real value.
And wood carries the shear. Seismic design in Southern California relies on sheathed wood shear walls tied together with hardware, and the connection ecosystem — hangers, straps, hold-downs — is built around lumber. See our joist hangers buying guide for how those connections are specified.
Fire, moisture, and pests: the LA-specific case for steel
Steel does not burn. In a garage separation wall, a corridor, a shaft, or a rated demising wall, non-combustible framing is often the shortest path to the assembly the plans call for. Steel studs paired with 5/8 in. Type X drywall are the standard rated partition in commercial construction, and the same logic applies in the wildland-urban interface, where our guide to WUI and Chapter 7A compliant materials covers the exterior side of the same problem.
Termites are the other quiet argument. Subterranean and drywood termites are endemic across the LA basin, and steel is simply not food. In a basement, a below-grade wall, or any partition where moisture is a live risk, steel will not rot, warp, or feed anything.
The counterweight is thermal bridging. Steel conducts heat far better than wood, so a steel-framed exterior wall loses the R-value you thought you paid for unless it carries continuous exterior insulation. Under Title 24 that usually means rigid foam over the sheathing — see our guide to foam board insulation for Title 24 compliance. For interior partitions the issue is moot, which is part of why steel dominates inside and wood dominates outside.
Labor, tools, and schedule
Steel goes up fast once a crew knows it. Studs are cut with snips or a chop saw with a metal blade, they friction-fit into track, and they are fastened with self-drilling screws rather than nailed. Bundles are light enough that one person can carry a wall's worth of studs up a stairwell, which matters in a tight tenant improvement with a freight elevator.
The trade-off is edges and precision. Cut steel is sharp, gloves are not optional, and a wall that is out of plumb cannot be persuaded with a sledge the way a wood wall can. Crews that frame steel every day are fast; crews that frame it twice a year are not.
Material handling favors steel on delivery too. A pallet of studs occupies less truck space and stores outdoors without degrading, which is useful on an LA site with no covered lay-down area.
Mixing the two in one building
The common LA answer is both. Wood carries load and shear; steel divides space. On a mixed-use ground-floor retail build, the podium and bearing walls are lumber or concrete, the tenant partitions are 25-gauge steel, and the rated corridor walls are 20-gauge steel with Type X board.
Where the two meet, plan the details. Door openings in steel partitions need the jamb anchors and header framing worked out before the wall goes up. Any wall that will receive heavy wall-hung fixtures needs backing designed in, whether that is a steel strap or a plywood backing panel screwed to the studs.
Frequently asked questions
Can steel studs be used for load-bearing walls?
Structural cold-formed steel framing exists and is used in mid-rise construction, but it is a heavier gauge product designed by an engineer. The 25- and 20-gauge EQ studs stocked for drywall partitions are non-structural and should not carry vertical load.
Are steel-framed walls noisier?
The framing itself is not the issue; the connection is. Steel studs are thinner and slightly more flexible than wood, which can actually reduce sound transmission. Adding resilient channel and insulation is what makes a genuinely quiet wall in either material.
How do I hang something heavy on a steel-stud wall?
Plan backing before the drywall goes on, or use toggle-style hollow wall anchors rated for the load. Screwing a heavy bracket into 25-gauge steel alone will eventually tear out.
Does steel framing cost more than wood?
Compare the assembly, not the stud. Steel is steadier than lumber, which swings hard, and the labor and waste picture differs by crew and by job. Check the current figures on both in the Drywall Steel Studs collection and the lumber collections before assuming either way.
Ordering for LA job sites
Order studs, track, and trim together so the wall is complete on the first delivery. Browse the Drywall Steel Studs collection for 25- and 20-gauge studs in 2-1/2 in., 3-1/2 in. and 3-5/8 in. depths, matching ProTRAK, L-trim, J-bead and resilient channel, with delivery across Los Angeles County.
