Completed Rialto Apartments exterior, 16-unit multifamily building built on the 4C SAFE panel system Completed Rebuild · Rialto, CA
4C SAFE™ · Multifamily Fire Rebuild

Factory-built construction scales beyond the single-family home.

Rialto Apartments is a 16-unit multifamily fire rebuild demonstrating how the 4C SAFE™ system can be applied to larger residential projects where repetition, coordination, and construction efficiency become even more valuable.

16 UnitsMultifamily residential
4C SAFE™Steel-framed building system
Factory-BuiltPre-engineered components

Rather than framing each wall entirely in the field, 4C brings construction into a controlled manufacturing environment. Building components are engineered, manufactured, and organized as a coordinated system before arriving on site—helping simplify field installation and reduce dependence on conventional site-built framing.

1-HR & 2-HR Fire-Resistive · WUI Compliant
ICC-ES Listed: ESL-1695 & ESR-3373 · Patent Pending
28,000Sq ft delivered, Rialto Apartments
16Residential units
3Stories
4C SAFE™Building system
Built To Repeat

The same approach, unit after unit.

For multifamily developers and contractors, the same approach can be repeated across units and building types, creating opportunities for more predictable quality, faster assembly, and reduced onsite labor.

Repeatable by design

The same coordinated system scales across units and building types, without reinventing the process for every floor plan.

Predictable quality

Factory-controlled manufacturing keeps every unit built to the same documented, repeatable standard.

Reduced onsite labor

Shifting a significant share of framing off site means less field labor and faster assembly at scale.

Rialto Apartments, completed multifamily building exterior with landscaping
The System

Cold-formed steel, built for fire resistance.

4C SAFE™ combines cold-formed steel framing with tested fire-resistive assemblies and a factory-controlled manufacturing process. The system is designed to integrate into conventional construction while shifting a significant portion of framing work off site.

View 4C SAFE™ Specs

See the 4C SAFE™ system page for specifications and listings, or the complete project portfolio. Every 4C build is delivered through our network of partner architects, general contractors, and developers.

Planning a multifamily project or fire rebuild?

Talk to us about system fit, unit repeatability, and what a factory-built structural phase looks like at scale.