CalRecycle's materials exchange portal helps connect businesses, organizations, manufacturers, schools, and individuals with the most effective online resources for exchanging materials. One business' trash is another business' treasure. By reusing materials, we conserve energy, resources, and landfill space, while reducing disposal, green house gas emissions, and purchasing costs. CalRecycle no longer lists individual materials available for exchange because the links below provide better online options. Please use one or more of the following resources to list or find materials. Thank you for your continuing commitment to reuse!

Community & Commercial

  • Freecycle: Free grassroots exchange focusing on local communities.
  • Craigslist: Centralized network of online communities, featuring free online classified advertisements and sections focusing on exchange of materials.
  • eBay: An online auction and shopping website in which people and businesses buy and sell a broad variety of goods and services both locally and worldwide.
  • is an online marketplace where buyers and sellers of used business and industrial equipment can find each other and trade safely.

By Material

  • American Builder Surplus: Online trading community of reusable and sustainable building materials.
  • Global Recycling Network: Specializes in trading recyclables reclaimed from the municipal solid waste stream.
  • Plastics Market: Connects suppliers and buyers of all types of scrap plastic (from bales to postconsumer resin). Specifically focused on the recycling industry.

Other Exchanges

  • RAFT--Resource Area for Teaching: Resource for businesses to donate surplus materials to schools.
  • iReuse: Consulting site offering reuse, sustainability, and exchange ideas for businesses, individuals, or nonprofits.
  • Recycler's World: Membership-based worldwide information exchange for companies and individuals who buy, sell, or trade commodities, materials, goods, and services relevant to the industry.
  • Surplus Exchange: Membership-based exchange site for surplus inventory & reusable items.

To locate additional resources or if you are looking for an exchange that's not listed on the CalMAX portal, popular search engines (Bing, Google, Yahoo!) may help you find it by using keywords: "materials exchanges" or "reuse."

Suggestions: CalRecycle welcomes your feedback on resources to list and find materials. If you know of other effective reuse tools that should be added to this list, please submit them.

The identification of individuals, companies, products and materials listed on this web page does not constitute endorsement by CalRecycle and is provided for informational purposes only. CalRecycle is distributing this information in an effort to increase public awareness and knowledge about this important topic.