Green Squared® Certification Steps View Larger Image Green Squared®—the world’s first multi-attribute certification for tile and tile installation products. Certified by ANSI A138.1 and trusted in major green building programs including LEED, NAHB, and Green Globes. Download PDFCindy Smith2026-01-20T16:58:29-05:00May 7, 2025|Share This ResourceFacebookXLinkedInEmail About the Author: Cindy Smith