How should seams in carpet cushion (pad, underlay) be placed according to best practices?

The placement of seams in carpet cushion should be at least a 6-inch offset from the seams of the carpet or positioned perpendicular to them. This best practice is essential for several reasons.

First, an offset or perpendicular alignment minimizes the risk of seam peeking or wave formation in the visible surface of the carpet. When seams in the cushion align directly with seams in the carpet, any movement or settling can lead to misalignment, which may be visually unattractive and affect the durability of the installation.

Second, staggering the seams helps to provide a more stable base for the carpet, thereby enhancing its longevity and performance. This approach distributes stress more evenly throughout the flooring system, reducing the chances of wear and tear at the seams.

Finally, ensuring that the cushion seams do not directly align with those of the carpet can also contribute to better overall aesthetics, ensuring a cleaner, more professional-looking installation. Consequently, the recommendation for a significant offset is aimed at achieving a high-quality and sustainable carpet installation.