Installation Instructions
19 
11.2  Separate Cushion Selection 
It is required that the cushion conform to carpet manufacturer recommendations 
for the specific product being installed. Failure to follow these recommendations 
for cushion may void manufacturer warranties. These recommendations may 
differ, depending on the style and construction of specific carpet. Cushion 
thickness for Residential carpet installations should not exceed 7/16 
inch (11 mm). 
Install separate carpet cushion in the longest continuous lengths possible, with 
cushion seams placed at right angles to carpet seams, or offset at least 6 inches (150 
mm) to one side. Trim cushion flush with the inside contour of the tack strip and 
securely fasten to the substrate using staples or nonflammable cushion adhesive at 
all seams and around the perimeter of each room. With the exception of fiber 
cushions, secure seams with appropriate vinyl-coated cloth cushion tape per the 
carpet cushion manufacturer’s recommendations. 
11.3  Seaming 
The seaming method depends upon carpet construction and backing type. Refer to 
Section 10.3. 
11.4  Power Stretching 
Power-stretch carpet following the 7 step procedure described in Figure 2. 










