Installation Instructions

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CRI 105 - STANDARD For INSTALLATION of RESIDENTIAL CARPET Copyright © 2019 by The Carpet and Rug Institute, Inc.
Definition of Terms
Term
Definition
Double glue
down
This is an installation method where carpet cushion is first adhered to
the substrate, and the carpet is then adhered to the cushion using the
proper adhesives.
Double-headed
mini-stretcher
(crab stretcher)
Hand device used for aligning patterns where a power stretcher cannot
be used; also used for removing fullness at seams and closing gaps at
seams.
Dry line
This is a length of line or cord, which is stretched slightly above the
carpet, but not touching the carpet, and used as a visual reference in
pattern alignment. Lasers also may be used in this capacity.
Edge Ravel
A condition of yarn loss in installed carpet when the edges begin to fray.
Gully
The distance between the tack strip and the wall. A gully should always
be slightly less than the thickness of the carpet and not exceeding 3/8
inch.
HVAC
Acronym for “heating, ventilating, and air conditioning” referring to
indoor climate control systems.
High Moisture
Carpet Adhesive
This is an adhesive that will work in a high moisture environment,
however it does not act as a moisture barrier. See adhesive
manufacturer for warranty information.
Knee-kicker
This is an installation tool designed to position carpet, hook and secure
carpet onto the tack strip and also perform stair installations. [NOTE: A
knee kicker is not for stretching carpet.]
Open time
The earliest time interval between the spreading of adhesive on a
substrate and the placement of a floor covering material into the
adhesive for bonding.
Patching
Floor preparation process of filling holes, cracks, and imperfections, etc.,
in a floor substrate prior to installation of carpet
Pattern bow
This is a distortion visible as wavy or crooked pattern lines when viewed
across carpet width.
Pattern
elongation
This is a variation of cumulative pattern measurements from one
breadth/width to the next. It is often referred to as “pattern run-off” or
“Length Pattern Repeat (LPR)”. [Sequencing of cuts minimizes effects.]
Pattern skew
This is a distortion visible when the pattern on one side is slightly ahead
of the pattern on the other side. Skew, or bias, describes pattern
squareness.