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Coming to Middle Tennessee
Common Block

Build with us

Help us start Common Block in Nashville.

We have the plan and the know-how. We are looking for local support to set up the first production line: space, foam, funding, builders and partners.

Where we are

We're not making blocks yet. Here's how we get there.

Common Block is at the starting line. The hard parts we can do ourselves are done: we know how to make this block and how to run the line that makes it. What we can't do alone is put it all in place in Nashville. That's where local support comes in.

  1. Done

    The plan and the know-how

    • Block mix and production process designed and proven on a previous ICCF line
    • Block design and dimensions set: 5 ft, hexagonal cores
    • Business plan and equipment list for a Nashville plant
  2. Now

    Building local support

    • A production space in or near Nashville
    • Clean foam supply from retailers, distributors and city collection
    • Startup funding, grants and green-building incentives
    • Builders, architects and community partners for the first projects
  3. Next

    First blocks, first walls

    • Set up the line and cast the first Nashville blocks
    • Independent fire, thermal and code testing (ASTM E119, C1363, ICC-ES)
    • Pilot walls with local builders, documented start to finish

What we need

Ways to help get Common Block off the ground.

Space

A warehouse or yard in Middle Tennessee with power and water. Short-term or shared space is a great start.

Offer this

Foam

Retailers, distributors, job sites and the city: clean EPS you would otherwise pay to landfill.

Offer this

Funding

Investors, grants and green-building programs to buy equipment and run the first production.

Offer this

Builders

Contractors, architects and housing groups ready to pilot the first walls.

Offer this

Partners

Metro departments, nonprofits, schools and neighbors who want to keep foam out of the landfill.

Offer this

Introductions

Know someone who should hear about this? An email introduction goes a long way.

Offer this

Get involved

Help us build the first Common Block plant.

We're not manufacturing yet. We have the plan, the block design and the know-how to run the line; what we need now is local support to get it started: a space, foam supply, funding and partners.

We're also lining up 3–5 Nashville-area builders to pilot the first walls once production starts, at demonstration pricing with direct support from our team.

Support Common BlockJoin the builder pilot

Or email hello@castelle.studio