Arxx Walls & Foundations > Builders > Common Walls

Build code-approved common walls in a single step

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“Arxx forms and walls have more certifications, more listings and approvals, and have completed more code related testing than any other ICF on the market. What’s more, Arxx has a track record of over ten years of success in real world construction”
Tom Patton , Manager, Sales and Technical Support - Eastern Division


Sound Control

Sound Control
Build real peace and quiet with a Sound Transmission Classifi-cation (STC) up to 50 or higher.


fire rated

Fire Rated
Get UL/ULC Fire Resistance Rating (FRR) of 2-4 hours when you build with Arxx.


Proven and tested common walls

“With Arxx, it’s easier to build code-rated common walls with the fire rating and sound proofing we need. It’s faster too. I don’t have to wait for subtrades or rent forms. And in the winter, I don’t need to heat the walls — I just pour and cover it with an insulated tarp.” Colin Biel, Homebuilder

Proven and tested so it’s easier
for you to build code-approved walls

Arxx is the proven and tested wall system

Build a fire resistant, sound rated, superbly insulated, common wall in just one step. We have done the engineering. We have done the testing. We have won the approvals – you just put it together.

When you build with Arxx, you are working with the number one Insulated Concrete Wall System in North America. Arxx has been approved by all major North American building codes. Arxx is the only Insulating Concrete Form (ICF) to receive a UL/ULC fire rating.

Proven and tested fire ratings

You get a 2-hour UL/ULC listed Fire Resistance Rating on every 6" Arxx wall you build. You can double it to a 4-hour rating by adding fiber to the concrete. Fire retardant is added to the EPS foam providing a self-ignition temperature of over 800° (430°C) in every Arxx form we build.

Fire Resistance

Proven and tested sound ratings

You can easily attain Sound Transmission Classification (STC) up to 50 or higher with an Arxx wall. That means peace and quiet for neighbors on both sides of every common wall you build – perfect for condos, townhouses, and even movie theatres. We have lots of test data and case studies. Call The Arxx Championship Support Team for more details and facts.

Sound Reduction

Proven and tested strength and security

Arxx walls are built like a sandwich with a reinforced concrete core. The structural integrity of this steel reinforced concrete core provides exceptional protection from hurricanes, tornadoes, and even rowdy neighbors. Our patented, exposed X-web gives you solid-to-solid contact for all your finishing materials. This dramatically reduces screw pops, siding sag, and customer call-backs.

concrete strength

Proven and tested to improve your profits

No one has more testing or code approvals than Arxx. No one has a better support team. We have over ten years experience installing over 80 million square feet of walls.

An Arxx common wall costs about the same as a conventional wall system, but it is a lot easier to build. (Actual costs vary by region. Call your Arxx Regional Manager at 1-800-293-3210 for more information.)

Build with Arxx. Build a better bottom line. Build code-approved walls in just one step.

Next: Build above-grade profits


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Arxx Walls and Foundations

The Arxx Bottom Line: Build code-approved walls in a single step   the Arxx Commitment