Metal Stud Thicknesses Guide

Emily Jul 26, 2026

Metal studs are a fundamental component in modern construction, serving as the backbone for walls and partitions. The thickness of these studs significantly influences the structural integrity, insulation, and aesthetic appeal of your building. Thus, understanding different metal stud thicknesses is crucial for architects, builders, and designers.

various types and sizes of metal profiles for different kinds of steel products, including beams, brackets
various types and sizes of metal profiles for different kinds of steel products, including beams, brackets

Metal studs are typically measured in gauges, an imperial measurement system that indicates the thickness of the steel. The lower the gauge number, the thicker the steel. Here, we explore various metal stud thicknesses, their applications, and their importance in construction.

Typical 3 5/8" Interior Wall Type
Typical 3 5/8" Interior Wall Type

Standard Metal Stud Thicknesses

Standard metal stud thicknesses range from 25 gauge to 16 gauge. The most commonly used gauges in construction are 25 gauge (0.018 inches), 20 gauge (0.032 inches), 18 gauge (0.046 inches), and 16 gauge (0.062 inches).

metal pyramids are stacked on top of each other in this close up shot photo
metal pyramids are stacked on top of each other in this close up shot photo

The choice of stud thickness depends on various factors, including the loads the wall will bear, the height of the walls, and the local building codes.

Light Gauge Steel Studs

Structural Studs
Structural Studs

Light gauge steel studs, typically 25 to 20 gauge, are optimal for non-load bearing walls. They are cheaper, thinner, and lighter, making them easier to handle and install. These studs are ideal for interior partitions, drywall, and plasterboard.

However, due to their thinner profile, they may dent easier and offer less insulation. Thus, they're usually not recommended for exterior walls or harsh environments.

Heavy Duty Steel Studs

the sound isolation wall is shown in three different positions
the sound isolation wall is shown in three different positions

Heavy duty or thick gauge steel studs, like 18 and 16 gauge, are suitable for bearing significant loads. They are robust, sturdy, and can withstand higher impacts, making them ideal for load bearing walls, storefronts, and parapet walls.

Although they cost more and are heavier, they provide better insulation and are more resistant to denting. Moreover, they can support more weight, enabling the wall to bear heavier loads.

Specialty Metal Stud Thicknesses

the diagram shows how to build a wall with different types of insulations and materials
the diagram shows how to build a wall with different types of insulations and materials

Beyond the standard measures, specialty studs with varying thicknesses are available for specific applications. These can include:

- Ultra-light gauge studs (<25 gauge) for non-load bearing partitions in high-ceiling spaces.

2×4 Studs Made of Metal vs. Wood – What’s Better for Framing?
2×4 Studs Made of Metal vs. Wood – What’s Better for Framing?
studs
studs
360TRAK™
360TRAK™
Gypsum Board Installation | Partition wall | GI Framing | #shorts #civilengineerworks
Gypsum Board Installation | Partition wall | GI Framing | #shorts #civilengineerworks
a table with numbers and times for different types of events in the day to night
a table with numbers and times for different types of events in the day to night
metal panels with rivets are shown in this close up photo, as well as the background
metal panels with rivets are shown in this close up photo, as well as the background
Cladding
Cladding
four square metal knobs on a white background
four square metal knobs on a white background
The Big Debate: Metal Studs vs Wood Studs
The Big Debate: Metal Studs vs Wood Studs
PRANCE | Aluminum Ceiling Manufacturer & Facade System Supplier
PRANCE | Aluminum Ceiling Manufacturer & Facade System Supplier

- Extra-heavy duty studs (>16 gauge) for high-load bearing structures like masonry walls or steel columns.

14 Gauge Metal Studs

14 gauge (0.074 inches) metal studs are a lesser-used option hovering between the heavy duty and specialty categories. They offer robust support but are used less frequently due to their cost and weight.

They're typically employed in industrial settings, such as workshops, factories, or storage facilities, where walls may bear substantial loads, and resistance to impacts is crucial.

28 Gauge Metal Studs

At the other end of the scale, 28 gauge (0.006 inches) metal studs are ultra-lightweight and are seldom used in conventional construction. They're mainly used in areas where minimal stud depth and weight are essential, such as:

  • Suspended ceiling systems for low-plenum applications.
  • As a secondary stud in double-stud wall construction for improved insulation.

In conclusion, the thickness of metal studs is a critical factor in construction. It influences the cost, structural integrity, insulation, and aesthetic appeal of your project. Understanding and selecting the right stud thickness can ensure not only the longevity and performance of your structure but also a seamless and cost-effective construction process.