Installation Standards
CRI 104/105 Carpet Installation Standards
The industry’s gold standard resource for commercial and residential carpet installation, the CRI 104 (commercial) and 105 (residential) standards, provide installers, retailers, specification writers, and building professionals with detailed principles and guidelines for carpet installation.
Representing more than 25 years of information gathering and installation expertise, CRI’s residential and commercial carpet installation standards are the only carpet installation standards created and supported by the industry.
In 2015, the CRI convened industry leaders to update the 104 and 105 standards to address innovations that require new approaches to carpet installation including planning and subfloor preparation. These changes reflect the industry’s ongoing dedication to quality and customer satisfaction.

Green Label Plus: The Carpet Industry’s Commitment to Indoor Air Quality
The carpet industry has a long history of creating products that provide numerous benefits, especially for indoor air quality. Today, indoor air quality (IAQ) is an important environmental consideration, especially since we spend approximately 90 percent of our time indoors. In 1992, CRI launched its Green Label program to test carpet, cushions, and adhesives to help specifiers identify products with very low emissions of Volatile Organic Compounds (VOCs). In the 2000s, CRI launched the Green Label Plus programs for carpet, adhesives, and cushion. These enhanced programs set higher standards for IAQ and let customers know they are purchasing the very lowest emitting products available on the market. Using scientifically established standards, the Green Label Plus program symbolizes the carpet industry’s commitment to creating a better indoor environment.

Green Label Plus Guides Federal Government Purchases
The Carpet and Rug Institute’s Green Label Plus (GLP) program is recognized by the U.S. Environmental Protection Agency’s (EPA’s) Recommendations of Specifications, Standards, and Ecolabels for Federal Purchasing. This recognition places the GLP program as a top-tier program for certification. The Recommendations of Specifications, Standards, and Ecolabels help federal purchasers identify and procure environmentally preferable products and services.

