Cold-formed steel · panelized

Built Panel by Panel.
Assembled on Your Lot.

Every Lumee home starts in a factory, not on a job site. Precision-built wall panels — complete with wiring, plumbing, insulation and interior finish — are manufactured to exact tolerances, then shipped and assembled on your lot. No guesswork. No waste. Every panel has a defined place and purpose.

Factory-built wall, floor & roof panels Wiring, plumbing & insulation pre-installed Shipped and assembled on your lot Site-specific engineering required
Understanding the method

What Is Panelized
Construction?

Panelized construction means the structural components of a home — walls, floor and roof systems — are manufactured in a controlled factory environment and then delivered to the building site for assembly.

Unlike stick-built construction — where every stud, wire and pipe is measured, cut and fitted on site — panelized homes arrive pre-built to precise dimensions. Each panel is a complete system: structural frame, electrical rough-in, plumbing chases, insulation and interior finish are integrated at the factory before the panel ever reaches your lot.

It is not a modular home (where complete room-sized boxes are stacked). It is not a manufactured home (built entirely in a factory and towed to the site). Panelized is the method between: factory precision with on-site assembly, conforming to local building codes where the home is placed.

Inside the panel

What Goes Into
Each Panel.

Lumee uses closed-wall panels — the most complete form of panelized construction. Each wall panel leaves the factory as a finished system, ready to connect. On site, the electrical sockets, plumbing fixtures and interior surfaces simply plug in and meet.

01

Cold-formed steel structural frame

The backbone of each panel, precision-cut to exact dimensions at the factory.

STRUCTURAL
02

Electrical rough-in

Wiring runs, junction boxes and outlet positions pre-installed. Ready to connect on site.

ELECTRICAL
03

Plumbing chases

Pipe runs and penetrations routed and positioned in the factory. No cutting through finished walls on site.

PLUMBING
04

Insulation

Installed to specification in a controlled environment, free from the humidity and weather conditions of a job site.

THERMAL
05

Exterior sheathing

Structural panel and weather-resistant barrier applied at the factory.

ENVELOPE
06

Interior finish layer

Wall surface prepared and ready for final decoration. Panels arrive on site finished, not raw.

FINISH
A factual comparison

Factory Precision vs.
Site-Built Reality.

A process-level comparison. Engineering performance for any given home depends on site-specific design, detailing and installation — this is not a performance claim.

Factor Panelized (factory-built) Traditional stick-built
Measurement & cutting CNC-controlled in the factory; tolerance measured in millimetresconsistent, repeatable across every panel Measured and cut by hand on site; quality depends on crew and conditionsvariability increases on complex or rushed projects
Material waste Minimised; offcuts recycled in the production lineno weather-damaged or over-ordered material on site Significant job-site waste from cuts, weather damage and over-orderinghard to control in Southern climate conditions
Weather during construction Panels manufactured indoors; only assembly is exposed to site conditionsstructure, insulation and finish sealed before leaving factory Entire build exposed to rain, heat and humidity in the Southern climatemoisture infiltration during framing is common
Insulation quality Installed in a dry, controlled environment to full specificationno on-site delays, compression, or moisture exposure during install Installed on site; subject to moisture and rushed sequencinghard to verify installation quality after wall closure
Site assembly time Shell can be erected in days; total on-site time significantly shorterMEP, finishes and commissioning still completed on site Weeks or months of framing, fitting and finishing on the lottrades scheduled sequentially, weather delays compound
Job-site complexity Each panel numbered, labelled and sequenced — assembly follows a defined planfewer trades on site simultaneously, shorter assembly window High coordination required across framing, MEP and insulation tradesmeaningful advantage in regions where skilled labour is limited

Panelized (factory-built)

Measurement & cuttingCNC-controlled; millimetre tolerance
Material wasteMinimised; offcuts recycled
Weather exposurePanels built indoors; only assembly on site
Insulation qualityInstalled dry, to full spec
Assembly timeShell up in days
Site complexityNumbered, sequenced, defined plan

Traditional stick-built

Measurement & cuttingCut by hand on site; crew-dependent
Material wasteSignificant on-site waste
Weather exposureFull build exposed to rain and humidity
Insulation qualityOn-site; subject to moisture and sequencing
Assembly timeWeeks or months on lot
Site complexityHigh trade coordination required
Site assembly

Assembly: Every Panel
Has a Place.

Each panel ships numbered and sequenced. Assembly follows engineering drawings, not improvisation. Think of it as a defined instruction set rather than a job site full of variables.

STEP 01

Foundation complete

The only on-site prep required before panels arrive.

STEP 02

Panels delivered by flatbed

Each labelled and sequenced for the assembly order.

STEP 03

Wall panels set and secured

Each panel connected to the foundation and adjacent panels per engineering drawings.

STEP 04

Roof system placed

Roof panels or trusses set to close the building shell.

STEP 05

MEP connections made

Electrical, plumbing and mechanical rough-ins join at pre-positioned connection points.

STEP 06

Final finishes and commissioning

Windows, doors, exterior cladding, interior fixtures and utility connections completed on site.

Built for the South

Why It Matters for
Southern Homes.

Why panelized, cold-formed steel construction is particularly relevant to the Southern U.S. climate and building environment.

01 · High humidity

Built and sealed before the weather arrives

Panels are built and sealed in a dry factory environment. Insulation and sheathing never sit exposed to rain or humidity during construction.

02 · Termite-prone soil

Not a food source

The structural frame is cold-formed steel — not a food source. No wood in the primary structure for termites to reach.

03 · Storm-prone regions

Engineered connections, not improvised fastening

Every panel connection is engineered to drawing. No improvised fastening. Final structural performance depends on site-specific engineering, foundation, exposure and approved documents.

04 · Contractor availability

Fewer trades, shorter window

Panelized construction requires fewer specialised trades on site and a shorter assembly window — a meaningful advantage in regions where skilled labour is limited.

Setting expectations

Honest About What Panelized Is Not.

  • NOT 01

    It is not a modular home.

    Panels are flat components, not three-dimensional room-sized boxes.

  • NOT 02

    It is not a manufactured home.

    Lumee homes are built to local site codes, not HUD standards for factory-built housing.

  • NOT 03

    It is not a fully finished product off the truck.

    Foundation, windows, doors, exterior cladding, utility connections and interior fixtures are completed on site.

  • NOTE

    Final structural performance depends on the specifics of your project.

    Site-specific engineering, local code compliance, foundation design, exposure category and quality of on-site installation all affect the final outcome.

Explore the homes

See the system
in three homes.

Walk through Model One, Two, or Three to see cold-formed steel panelized construction in a finished home design.

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