Modern M370T Construction Multi-Level Pattern Loop Pile Fiber 100% Zeftron Solure Nylon Contains Recycled Content. Treated with a Stain Protector and Soil Repellent. Dye Method Solution Dyed Yarn Ply 2 Ply Tufted Yarn Weight 20 Ounces Per Sq. Yd. (678 g/m) Machine Gauge 1/12" (4.72 Rows/cm) Stitches Per Inch 10 (3.94 Stitches/cm) Density Factor 6792 Primary Backing 100% Synthetic Secondary Backing EnviroFlex® Performance Engineered Backing with Recycled Content. Tile Size 24" x 24" (60.96cm x 60.96cm) Finished Pile Thickness Approximately .106 Inch (2.69 mm) Dye Lot Size Up to 20,000 Square Yards Traffic Class Extra Heavy Commercial Class III Adhesives BR200 EnviroFlex® Carpet Tile Adhesive Installation Method Monolithic and 1/4 Turn Recycling Program Qualifies for 6ixAgain® Program CRI Indoor Air Quality Carpet Testing Program Passes - Certification No. 3467971