Installation Guide
Table Of Contents
- Table of Contents
- Foreword
- Acknowledgements
- General Requirements
- Broadloom Carpet
- Residential Carpet Tile
- Definition of Terms
- Table I – Tools & Materials
- Table II – Trowel Size Minimum Guidelines
- Table III – Tack Strip
- Table IV – Adhesive Types / Definitions
- Table V – Dew Point
- CRI Members Contact Information
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CRI 105 - STANDARD For INSTALLATION of RESIDENTIAL CARPET Copyright © 2015 by The Carpet and Rug Institute, Inc.
Broadloom Carpet
A metal surface should not be used to weight the seam behind the seaming device, as
metal traps the heat and moisture. Wood or non-heat conducting material should be
used for this purpose.
Provide adequate ventilation to dissipate any fumes from the seaming process.
10.3.2
Hand Sewing
Hand sewing shall be overcast stitches placed not more than 1/2 inch (13 mm) apart and
no less than 1/2 inch from the edge of the carpet. It is recommended that a latex coating
and tape be applied over the stitching.
10.4
Proper Seam Characteristics
· With any seaming method, a properly constructed seam:
· has cleanly trimmed edges properly secured with edge/seam sealer
· has tightly abutted edges without gaps or overlaps
· maintains reasonable pattern match where applicable
· will not be invisible
11.0
Stretch-in Installation
This method involves installing carpet under tension over a separate cushion, using tack-
strips fastened at all walls and other vertical abutments around the perimeter of the area.
11.1
Tack-strip
It is required that tack-strips be a minimum of 1 inch (25 mm) wide and 1/4 inch (6 mm)
thick (Refer to Table III – Tack Strip at the end of this document). Architectural strips, 1 ¾
inches in width (50mm) with 3 rows of pins, or 2 conventional strips with 2 rows of pins
each, are required for stretching areas exceeding 30 feet to provide secure attachment of
the carpet and additional shear strength. To prevent possible injury to occupants, it is
required that the pins on tack-strips not protrude through the carpet being installed.
Additional tack-strip installation specifications include:
· Securely fasten tack-strips to maintain the tension provided by power stretching.
Nailed or stapled tack-strips are required to have a minimum of 2 fasteners per piece.
· Place tack-strips with the pins angled toward the vertical abutment.
· The gully, or distance between the tack-strips and vertical abutments, is required to be
slightly less than the thickness of the carpet but not exceed 3/8 inch (9 mm).