Steel Stud Sizes Chart
Compare common metal stud widths, depths, gauges, and track sizes for steel framing projects.
Steel studs are manufactured in a range of depths, flange widths, and gauges to suit different wall types, loads, and building requirements. This reference page helps you quickly compare standard sizes, compatible track, and typical applications.
📌 What Are Common Steel Stud Sizes?
Nominal steel stud depths commonly used in construction include: 1⅝″, 2½″, 3⅝″, 4″, 6″, 8″, and 10″. Actual dimensions and available gauges vary by manufacturer and structural requirements. Always verify with your supplier and project drawings.
Steel Stud Sizes Chart
| Nominal Stud Size | Approx. Depth | Common Applications | Typical Gauge Range | Compatible Track Size |
|---|---|---|---|---|
| 1⅝″ | 1.625″ | Light non-loadbearing partitions | 25–20 ga | 1⅝″ |
| 2½″ | 2.5″ | Interior walls, residential | 20–18 ga | 2½″ |
| 3⅝″ | 3.625″ | Commercial partitions, utility walls | 20–16 ga | 3⅝″ |
| 4″ | 4.0″ | Exterior walls, multi-story | 18–16 ga | 4″ |
| 6″ | 6.0″ | High-load, tall walls, shaft walls | 16–14 ga | 6″ |
| 8″ | 8.0″ | Heavy commercial, structural | 14–12 ga | 8″ |
| 10″ | 10.0″ | Special engineering applications | 12 ga | 10″ |
Steel Stud Gauge Chart
Steel gauge indicates the thickness of the base metal. Lower gauge numbers correspond to thicker steel. Typical framing gauges are shown below.
| Gauge | Relative Thickness | Typical Use |
|---|---|---|
| 25 ga | Thin (0.018″–0.020″) | Light interior partitions, low load |
| 20 ga | Medium (0.033″–0.036″) | Standard interior walls, residential |
| 18 ga | Medium-heavy (0.043″–0.048″) | Commercial partitions, utility |
| 16 ga | Heavy (0.054″–0.060″) | Load-bearing, exterior walls |
| 14 ga | Extra heavy (0.068″–0.075″) | Structural, tall walls, shafts |
| 12 ga | Very heavy (0.096″–0.105″) | Heavy structural, engineering |
Steel Stud Dimensions Explained
Steel studs are cold-formed C‑shaped sections. Key dimensions include depth, flange width, lip, web, and steel thickness.
- Depth: The overall height of the stud (e.g., 3⅝″).
- Flange: The top/bottom horizontal edges (typically 1¼″–2″).
- Lip: The return bend at the flange edge (adds stiffness).
- Web: The vertical central section between flanges.
- Steel thickness: Determined by gauge (e.g., 18 ga).
Steel Stud vs Wood Stud Sizes
| Feature | Steel Stud | Wood Stud (2×4 / 2×6) |
|---|---|---|
| Common Size | 3⅝″ × 1¼″ flange | 3.5″ × 1.5″ (nominal) |
| Weight | Lighter per linear foot | Heavier, variable by species |
| Straightness | Consistent, no warping | Can bow or twist |
| Moisture Resistance | High (non-organic) | Susceptible to rot |
| Fire Resistance | Non-combustible | Combustible |
| Installation | Screws, self-tapping | Nails, screws |
Common Steel Stud Sizes by Application
3⅝″ or 2½″ studs, 20–18 ga.
3⅝″ or 4″, 18–16 ga.
6″ or 8″, 16–14 ga.
6″–10″, 14–12 ga (engineered).
6″–8″, 16–14 ga.
Structural and load-bearing applications require engineering and project-specific specifications.
Steel Track Sizes
Track (also called channel) typically matches the depth of the stud. The table below shows common pairings.
| Stud Depth | Matching Track Size | Notes |
|---|---|---|
| 1⅝″ | 1⅝″ track | Light partition |
| 2½″ | 2½″ track | Residential |
| 3⅝″ | 3⅝″ track | Standard commercial |
| 4″ | 4″ track | Exterior / multi-story |
| 6″ | 6″ track | High-load / shaft |
| 8″ | 8″ track | Heavy structural |
For more details, see our Steel Track Sizes Guide.
How to Choose the Right Steel Stud Size
- Determine wall type: Interior, exterior, load-bearing, or partition.
- Check wall height: Taller walls often require larger studs.
- Identify structural requirements: Loads, wind, seismic.
- Consider insulation and utilities: Deeper studs allow more space.
- Select required stud depth: Match application (see chart).
- Confirm gauge: Thicker steel for higher loads.
- Check local building codes & engineer specs.
Related Steel Stud Guides
Frequently Asked Questions
3⅝″ is widely used for commercial and residential partition walls. 2½″ and 6″ are also common for specific applications.
It refers to the nominal depth of the stud: 3⅝ inches (3.625″). The actual depth may vary slightly by manufacturer.
They are typically nominal; exact dimensions depend on the manufacturer's profile. Always check product data.
It depends on the application. 20–18 ga for standard walls, 16–14 ga for load-bearing, and 12 ga for heavy structural.
Flange widths typically range from 1¼″ to 2″; stud depth is the primary dimension.
Depth is the overall height of the C‑section; flange width is the top/bottom horizontal edge.
Yes, track depth should generally match the stud depth for proper fit and strength.
Yes, but they require engineering and correct gauge/depth selection. Always consult a structural engineer.
References & Disclaimer
Steel framing dimensions, thicknesses, and structural requirements vary by manufacturer, building codes, engineering specifications, wall height, loads, and local regulations. This page is intended for general educational and planning purposes. Always verify framing dimensions and structural requirements using the applicable manufacturer documentation, project specifications, and local building codes.
Recommended references: Manufacturer technical catalogs (e.g., ClarkDietrich, Marino\WARE), industry associations, and the applicable building code (IBC, ASCE 7).