Precision-engineered, cold-formed, high-strength steel framing: studs and tracks, pre-assembled panels, and trusses, designed, roll-formed, and panelized in-house for single and multi-family construction.
A modern construction method built on cold-formed, high-strength steel.
Light gauge steel (LGS), also called cold-formed steel (CFS), uses precision-formed, high-strength steel profiles to create the structural shell of a building. It is durable, non-combustible, dimensionally stable, and engineered for seismic performance, a smarter alternative to wood or masonry.
Cal Steel Group transforms architectural plans into high-performance steel systems: engineered in 3D, roll-formed to millimetric accuracy, and panelized in a controlled factory environment, then delivered ready to assemble.
Featured project · Altadena
480 W Palm St. Designed, manufactured, and assembled in steel.
A 2,789 square foot, four-bed fire-rebuild home in Altadena. Light gauge steel design, manufacturing, and on-site assembly by the platform, from the BIM model to a panelized kit craned into place.
2,789 sq ft · 4 bed / 4 bath · LGS design, manufacturing & on-site assembly
Featured project · Los Angeles multifamily infill
823 North June Street. A four-unit building, framed in steel.
A ground-up, three-story residential infill project in Los Angeles: a structural steel garage level carrying two light gauge steel floors above. Delivered as a panelized package, trucked in, craned into place, and assembled on site in days.
Four residential units · 3 stories · structural steel + panelized light gauge steel · Los Angeles
Featured project · Pacific Palisades
777 Ocampo Drive. A rebuild framed entirely in steel.
Working behind an outside general contractor, Cal Steel is delivering the complete structural steel and light gauge steel package, from the basement and its custom curved steel stair up through the second-floor structure.
Aerial flyover · the full site
Structural steel & LGS package · Pacific Palisades fire rebuild
Panelized LGS in the field
Load-bearing light gauge steel, at building scale.
Panelized LGS framing on real hospitality and senior-living projects, fabricated off-site and assembled on site. Both were delivered in collaboration with Advanced Building Systems (ABS).
Hospitality · Glendale, CA
Holiday Inn
An 80,000-square-foot hotel framed with panelized light gauge steel and structural steel lateral reinforcement, fabricated off-site and assembled on site for speed.
A 53,000-square-foot senior housing community framed with a panelized hybrid light gauge steel system, produced off-site for a fast, clean site assembly.
Wood is alive: it feeds termites, rots when it gets wet, grows mold, and warps as it ages. Steel is none of those things. Light gauge steel is inorganic, dimensionally stable, and engineered for seismic loads, so the frame you build stays straight, sound, and standing for the life of the building.
01
Non-Combustible & Fire-Resistant
Steel does not burn or feed a fire. In California's wildfire and WUI zones it is the framing that helps a home survive, get permitted, and stay insurable.
02
Seismic-Resilient
Cold-formed steel is engineered for high seismic loads, so the structure performs when an earthquake hits.
03
Pest, Rot & Mold-Proof
Inorganic and galvanized: termites get nothing to eat, moisture will not rot it, and mold has no food source, with no chemical treatments, ever.
04
Dimensionally Stable
Will not warp, shrink, or twist. Straight walls for the life of the building, with no cupping, splitting, nail-pops, or settling cracks.
05
Precision-Engineered
Every panel is a BIM digital twin of the plans, fabricated to the millimeter, so it fits the first time and the walls stay true.
06
Built Faster, Less Labor
Panelized in our shop and erected on site, so the shell goes up in days, not weeks, with fewer skilled framers.
07
Stronger & Lighter
A high strength-to-weight ratio means longer spans, fewer bearing walls, and lighter foundation loads.
08
Budget Certainty
Steel pricing is stable, with none of lumber's wild swings, so the bid you hold is the bid you build.
09
Sustainable, Less Waste
The world's most-recycled material: high recycled content, 100% recyclable, zero deforestation, and a fraction of the jobsite waste.
How we deliver
From architectural plan to assembled structure, in four steps.
01
Structural Engineering & BIM
We turn architectural plans into detailed 3D structural models in Vertex BD, AutoCAD, and Revit, a complete digital twin before a single stud is made.
02
High-Precision Manufacturing
Pinnacle X10 CNC roll-forming produces every profile to millimetric accuracy, with automated MEP pre-punching.
03
Off-Site Panelization
Wall and floor panels are pre-assembled in a controlled facility, with detailed assembly shop drawings.
04
On-Site Erection & Framing
Unlike a panel-only supplier, Cal Steel is a full erection, installation, and framing contractor, completing the build on site.
LGS products & systems
A complete light gauge steel product line.
P01
Studs & Tracks
Vertical and horizontal C and U-shaped profiles that form the skeleton of the building.
P02
Pre-Assembled Panels
Ready-to-install wall and floor sections manufactured in a controlled factory environment.
P03
MEP-Ready Profiles
Pre-punched service holes for seamless electrical and plumbing integration.
P04
Galvanized Protection
High-grade zinc coating for permanent protection against corrosion.
P05
Fast Wall Systems
Fast Frame, Fast Wall, and Fast Wall+ panels, from bare frame to fully finished with insulation and cladding.
P06
Roof & Floor Trusses
Engineered roof and floor truss systems for strong, level, long-span structures.
Engineering & 3D
A complete digital twin, before a single stud is made.
Every project begins as a code-compliant 3D model in Vertex BD, integrated with AutoCAD and Revit. BIM is a standard part of our workflow, so detailing, manufacturing, and installation all run from one accurate source of truth, and your team receives detailed assembly shop drawings that streamline logistics and field work.
Vertex BD digital twin, synced to the Pinnacle X10 Infinity line
Structural-grade profiles to 11 ga (3.0 mm) and up to 14 in web, with in-line service holes and dimples
AutoCAD and Revit BIM integration
ICC-ES certified (ESR-4905) code compliance
Reduces installation labor by up to 50%
AISI S240 / S100
Cold-formed steel framing engineered to the governing structural standards.
ICC-ES ESR-4905
Code-recognized light gauge steel components per the California Building Code.
AWS D1.1
Certified welding on structural connections by qualified crews.
LA City Approved
Approved fabricator and erector of light gauge steel systems.
Where LGS goes
Single and multi-family, multi-story, and complex builds.
Our LGS systems frame the homes and structures across the TESH Group platform, including Lytemods residential products and Cal Steel project sites, and serve outside builders, GCs, and developers.
Single-family homes & ADUs
Multi-family & apartments
Multi-story buildings
Hotels & hospitality
Fire-rebuild housing
Complex architectural designs
Load-bearing & curtain walls
Roof & floor truss systems
Builder & GC framing packages
See it built
Real LGS homes, from 3D model to finished frame.
Explore the project portfolio, including Lytemods builds across California, with full construction galleries and interactive 3D models.
Aerial flyover · the full site
