How to

Get Certified

The Green Squared Certified mark—it’s how you let the world know your product has been independently verified to meet the array of rigorous sustainability requirements of the Green Squared standard, ANSI A138.1.

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Buildings and Skyscrapers

Learn About

Green Building Recognition

Green Squared Certified tiles & installation materials offer professionals many opportunities to gain credit and/or recognition under a panoply of green building programs.

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Choose Green Squared Certified

Where to find

Certified Products

Seeking environmentally friendly products for your home? Need to specify products that meet the requirements of a big project? Check manufacturer's listings or the online product libraries of Green Squared certifiers for Green Squared Certified products.

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About Green Squared

Green Squared® involves one industry, one standard, and one mark and covers the gamut of products used in a tile installation. As the first multi-attribute sustainability standard developed for tiles and tile installation materials, Green Squared uses the transparency and consensus of the ANSI process combined with third party certification to evaluate, validate, and communicate products which have a positive impact on the environment and society.

Green Squared covers product characteristics, manufacturing, end of product life management, progressive corporate governance, and innovation in an effort to establish sustainability criteria for products throughout their full lifecycle.

Why Green Squared?


Green Squared incorporates a full range of sustainability issues into one standard, one mark - allowing for easy marketplace recognition of sustainable tiles and tile installation materials.

Standard Sustainability

Green Squared establishes performance-based thresholds, setting the "bar" for technical specification of sustainable tiles and installation materials.


As the tile industry's own sustainable product certification program, Green Squared facilitates increased uniformity and decreased confusion in green marketing.


Green Squared certification provides a smooth, clear, and responsible pathway to inclusion in green building projects, in part by conferring the high level of credibility associated with passing rigorous third-party evaluation by international certification bodies.

In the Field