T2EARTH announces launch of OnWood Plywood

April 24, 2025

In recognition of Earth Day on April 22 2025, T2EARTH has announces the launch of OnWood Plywood, the newest advanced eco-friendly fire-retardant treated wood (FRTW) on the market.

Made without toxic chemicals, OnWood is designed to deliver strength, Class A fire retardancy and sustainability —offering builders and developers a healthier, higher-performing, affordable alternative for fire-prone environments.

Combined with OnWood Dimensional Lumber, T2EARTH meets the demands of a new era of eco-friendly fire-retardant “hardened homes.”

Features of OnWood Plywood

Developed for fire-resilient, code-compliant materials, OnWood Plywood is independently certified by the International Code Council (ICC-ESR 4627) and meets performance standards for both structural integrity and fire safety.

  • From 19% to 91% stronger than traditional toxic chemical treated FRTW plywood.
  • Class A Fire Retardant — ASTM E84 & E2768, Flame Spread 10 / Smoke Developed 10.
  • ICC Product Listing Certified for termite and mold resistance barrier protection (ICC-ESL 1640).
  • Non-toxic — no formaldehyde, halogens, or harsh chemicals.
  • Sustainably sourced wood from FSC, SFI, or comparably managed forests.
  • Manufactured in the USA with a 30-year limited warranty.

Available now in 4’x8′ panels (½”, ⅝”, ¾”), OnWood is intended to be used for framing, sheathing and underlayment—particularly in high-risk wildland-urban interface (WUI) zones and high humidity regions.

Coinciding with the OnWood Plywood launch, T2EARTH is introducing THINKOnWood, a nationwide communities-based initiative to unite professionals across architecture, real estate development, construction, community leadership and code design/enforcement in promoting eco-friendly Fire Hardened Homes as the new building standard.

T2EARTH’s THINKOnWood platform will offer education, policy guidance, building professionals focused collaboration tools and homeowners’ forums to help accelerate safer, affordable and climate-resilient construction.

Co-Founder and CEO, T2EARTH, Joel Kier’s statement

Joel Kier, Co-Founder and CEO of T2EARTH shared: “OnWood represents the future of building materials: fire retardant, strong, safe, affordable and sustainable.

“And with THINKOnWood™, we’re helping lead a national shift in how we build to meet today’s risks and fire-prone community needs.”

OnWood PlyWood launched by T2EARTH: Summary

T2EARTH has announced the launch of OnWood PlyWood, its eco-friendly fire-retardant treated wood made without toxic chemicals.

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