Rice Hull Building Material Mistaken for Wood
August 2025In Miami, Florida, the CM1 Home by Caplow Manzano showcases how sustainable innovation can redefine expectations. Designed with Robert Vick Architecture and built by Alligator Construction, the project features an expansive outdoor living area where the ceiling draws instant admiration. Visitors see what appears to be a rich, wood-paneled drop ceiling, warm, natural, and carefully crafted. Almost everyone assumes it’s wood.
The truth surprises them: it’s ACRE by Modern Mill, a revolutionary building material made from upcycled rice hulls.

A Ceiling That Captures Attention
The large carport and outdoor living room of the CM1 Home were transformed with ACRE trim boards, creating a striking drop ceiling. Each board carries subtle tonal variations that mirror the look of authentic wood. The effect is so convincing that guests frequently stop mid-tour to ask what kind of wood was used.
As Caplow Manzano shares:
“After complimenting the looks, people touring the home want to know what sort of wood we used. They are always intrigued and impressed when they learn that it’s not wood at all. This moment gives us an opportunity to share our approach to material selection—emphasizing durability, non-toxicity, and innovation.”
Why ACRE Was the Right Fit
For Caplow Manzano, the decision to use ACRE stemmed from a commitment to high-performing and responsible materials. Crafted from discarded rice hulls, ACRE aligned perfectly with the team’s sustainability goals.
In Miami’s humid, coastal environment, material durability was also essential. ACRE provided mold resistance and a surface that could be stained or left raw, making it an ideal solution for an outdoor ceiling that needs to withstand the elements while maintaining its clean lines and natural appearance.

Wood Look, Without Wood
What makes this project remarkable is not only the final result, but also the reaction it inspires. The CM1 ceiling looks indistinguishable from real wood, yet it avoids the vulnerabilities of traditional lumber. By choosing ACRE, the team delivered a space that balances beauty with performance, and aesthetics with environmental responsibility.
Building With Purpose
The CM1 Home demonstrates how the right material can elevate a project while also sparking meaningful conversations. Visitors may first be drawn to the warmth of the ceiling, but they leave with a story about innovation and sustainability. ACRE transforms expectations by proving that rice hulls can be used to achieve the beauty of wood while helping reduce reliance on forests.

Conclusion
The CM1 Home is proof that ACRE trim can achieve striking wood-like design in demanding climates while aligning with modern values of sustainability and performance. Beyond aesthetics, it demonstrates how agricultural byproducts like rice hulls can be transformed into high-value materials that reduce reliance on forests and open new possibilities in modern design. For architects, builders, and homeowners, it shows that choosing ACRE is not just about appearance, it’s about building smarter and more responsibly.
Ready to see the difference for yourself? Order an ACRE sample today or contact the Modern Mill team below to explore how ACRE can enhance your next project.