STEEL STUD FRAMING FOR CURVED WALLS AND RADIUS APPLICATIONS

Curved walls and radius applications are increasingly common in commercial interior design, particularly in corporate office fit-outs, retail environments, hotel lobbies, and healthcare facilities. Steel stud framing is exceptionally well-suited for curved wall construction — far more so than wood framing — due to the flexibility of the thin-gauge steel members and the availability of specialized curved track products. This guide covers the techniques and specifications for framing curved walls with steel studs in commercial construction projects in Edmonton and across Alberta.

METHODS FOR FRAMING CURVED WALLS

There are three primary methods for framing curved walls with steel studs, each suited to different radii and project requirements.

Method 1 — Kerfed Track: For gentle curves with a large radius (typically greater than 10 feet), standard steel track can be kerfed (notched) at regular intervals to allow it to bend to the required radius. The kerfs are cut into the web and one flange of the track at intervals that depend on the radius — tighter curves require more closely spaced kerfs. This method is economical and can be performed on-site with standard tools.

Method 2 — Flexible Track: Specialized flexible track products are available from several manufacturers for curved wall applications. These products have pre-cut slots or a corrugated web that allows the track to bend to a specified radius. Flexible track is available in standard widths and is installed in the same manner as standard track. It is the preferred method for medium-radius curves (5 to 20 feet) where a smooth, consistent curve is required.

Method 3 — Segmented Track: For very tight curves (radius less than 5 feet), the track is cut into short segments and installed at angles to approximate the curve. The segments are fastened to the floor and ceiling at close intervals, and the studs are installed at angles to follow the curve. This method requires careful layout and is more labour-intensive than the other methods, but can achieve very tight radii.

STUD INSTALLATION FOR CURVED WALLS

For curved walls, studs are typically installed at closer spacing than for straight walls — 12" o.c. or 16" o.c. is common — to provide adequate support for the curved drywall and to minimize flat spots in the finished surface. The studs are installed plumb and are not bent to follow the curve; instead, the curve is achieved by the track layout and the flexibility of the drywall.

DRYWALL FOR CURVED WALLS

Standard 5/8" gypsum board can be bent to a minimum radius of approximately 20 feet when applied dry. For tighter radii, 1/4" flexible gypsum board is available, which can be bent to a radius as tight as 5 feet when applied in multiple layers. For very tight curves, the drywall can be wetted to increase its flexibility — a technique known as "wet bending" — which allows standard 1/2" board to be bent to a radius of approximately 5 feet.

LAYOUT AND QUALITY CONTROL

Accurate layout is critical for curved wall construction. The curve must be laid out on the floor using a template, a trammel, or a laser layout tool. The floor layout is then transferred to the ceiling using a plumb bob or laser plumb. Any errors in the layout will be amplified as the wall is built, resulting in a wall that does not match the design intent.

Curved wall framing requires specialized skills and experience. GoldStar Builders Corporation has extensive experience with curved and radius wall applications in commercial interior construction throughout Edmonton. Contact GoldStar Builders to discuss your project requirements.