Why do we not using metal studs for residential?

Steel studs are U-shaped building materials made of high-strength steel that are predominantly used in conjunction with drywall. These roll-formed studs are ideally suited for renovations in basement, attic, and garage areas, as they are embossed for added rigidity and feature flange grooves that assist with alignment of drywall sheets.

Traditionally, steel studs were not commonly used in residential buildings, but were purchased from specialty building supply outlets by builders and home renovation professionals. Nowadays, steel studs can be found more frequently at home improvement centers, although wood studs continue to maintain their popularity.

Typically available at local lumberyards and home centers, steel studs come in standard sizes that match those of two-by-four wood studs, and are offered in lengths ranging from 8 feet to 14 feet. Standard steel studs available at these locations feature 25-gauge steel construction.

In terms of dimensions, steel studs are available in various widths for the stud web, including 1-5/8-inch, 2-1/2-inch, 3-1/2-inch, 3-5/8-inch, 4-inch, 5-1/2-inch, and 6-inch. Studs are also designed with knockouts in place to accommodate electrical cables, with knockout diameters ranging from 3/4-inch to 1-1/2-inch. Please note that all knockouts will require bushings.