CRI 105
Carpet and Rug Institute residential standard
Power-Stretched, Not Just Kicked In
A knee kicker hooks carpet onto the tack strip near the wall, but it cannot pull a large room tight. Without power-stretching, carpet loosens as it relaxes under foot traffic and humidity, and ripples follow. We install to the CRI 105 standard, which calls for power-stretching wall-to-wall carpet. It takes more time and the right tool, and it is the main reason a carpet still lies flat years later.
