The Way

Building smarter, faster, and more sustainable with Preflex

Innovative panelized building systems are revolutionizing the construction industry. These systems provide superior quality, faster build times, and greater cost savings compared to traditional construction methods. Preflex panels are becoming more prevalent in the building industry, allowing builders to construct Stronger structures quickly and cost-effectively.

Preflex Products:



Interior & Exterior Sheating


Structural Insulated Panels

Preflex SIPs are a revolutionary building system that consists of a solid core of expanded polystyrene (EPS) structurally laminated to 2 oriented strand board (OSB) skins. The panels include framing, insulation, wire conduits, and sheathing in a single component; it's considered one of the most energy-efficient building systems on the market. Preflex Panels are manufactured to the highest standards and are Code Compliant with Building Residential codes at the US Federal and California State levels for use as load bearing Walls, Roofs and Floors

Preflex Panels applications


Preflex Panels allow you to build faster, greener, and more efficiently, creating a higher-value build.


Faster Construction

Prefabricated panels can be deployed quickly, built in as little as one (1) day.

Material & Labor Savings

Off-site fabrication results in accurate material and labor costs with no overages.

Sustainable & Energy Efficient

Low carbon construction and superior insulation results in up to 50% energy savings.

Avoid Labor Shortages

Remove the need for skilled carpentry.

Zero Waste Production

All material and scrap from fabrication are either recycled or reused for another project eliminating fabrication and job site waste.

Increase Property Value

Increased Energy Efficiency reduces operating costs while increasing property valuation.

Healthy Home

No VOCs, Healthy Interior Air Quality


Our designs are minimalistic, modern, and flexible enough to customize to your own taste.


Site Built Construction Schedule

Preflex System Construction Schedule

How It Works

Our Process

Choose one of our pre-design models, or design your ADU using our 3D configurator.

Select from our catalog your interior and exterior finishes.

Preflex obtains Engineering stamp, Title 24 compliance and submits permitting.

Preflex manufactures SIP panels for your buildings.

Site preparations, this includes clearing the area of debris, foundation work and pulling MEP to site.

Finally, panels are received on-site and assembled in one-day.

Green Construction

Reduce Energy Consumption by up to 50%

Healthier Indoor Environment

90% Less Waste On-Site

Any waste from manufacturing is either reused or recycled.

Earn Leed Points

Toward an Environment Certification and Crucial Tax Credits.

65% Less Timber

Than traditional building methods.

No Harmful Chemicals

No off-gassing or VOCs. No Wall Cavities for Mold growth.

Low Carbon Footprint

Reduce the carbon footprint by over a million lbs over the lifetime of the building.

SIP Versus Stick Frame

Tight Envelope Continuous Insulation

Environmentally sustainable

1 days assembly with 4 installers: 700sqft

Engineering included

21 year product warranty

Fixed cost

Zero on site waste

Thermal bridging and air cavities

High carbon footprint

15 day framing with highly skilled carpinter: 700sqft

Engineering cost 6-8K

Floating Material cost estimates

Expensive change in order cost

Continues cleanup and trash hauling

Learn More

Our Homes

Model 8

R 140ft²‍ | L 176ft²‍ | XL 210ft²

Model 12

R 192ft²‍ | L 288ft²‍ | XL 384ft²

Model 16

R 542ft²‍ | L 640ft²‍ | XL 768ft²

Model 20

R 640ft²‍ | L 800ft²‍ | XL 960ft²

Model 24

R 768ft²‍ | L 960ft²‍ | XL 1152ft²

Sign Up to our Newsletter

Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.