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
strength, stretch resistance, and ease of handling.
Selvage
(selvedge)
The lengthwise, factory-finished edge portion of a carpet.
Shoe molding
Wood or plastic strip with one corner edge rounded slightly. Used to
conceal the floor/wall line junction or between larger moldings and
floors.
Stair nose
Leading edge of a stair tread. For carpet installation, it is required that
this edge be rounded.
Stay nailing
A technique of temporarily fastening carpet to the floor using nails to
prevent movement until permanent fastening with tack strips, adhesives,
or other means is possible. This technique is commonly used to align
patterned carpet.
Stretch-in
Installation method whereby carpet is placed over separate carpet
cushion and is secured in place, under tension, using a power stretcher
(mechanical stretching device).
Substrate
A general term that means any surface below another surface, but which
in the floor covering industry, most often refers to the stabilizing layer of
material directly beneath the finish flooring.
Tack strip
Wood strip fastened to the floor near the walls of a room, containing
either two or three rows of pins angled toward the walls on which the
carpet is stretched and secured in a stretch-in installation. (Also referred
to as “tackless strip”)
Telegraphing
The gradual appearance of irregularities, imperfections, or patterns from
a substrate onto the surface of the carpet which can include seaming
tape.
Threshold
The raised material beneath a door. This is also known as a “door sill” or
“saddle.”
Transition
molding
A wooden, metal, vinyl, or plastic strips to cover raw edges of carpet at
doorways or where carpet abuts another type of floor covering. There
are two basic types: 1) Applied before
Tread
The horizontal part (walking surface) of a stair.
Trowel
Hand implement used for metering and spreading adhesive to the floor
or other substrate.