Plywood Floor Underlayment: Multiply Floor Underlayment (Birch)

Floor Underlayment Product Guide

Plywood Floor Underlayment is used to improve wood-based subfloors and provide a suitable base for the final decorative flooring surface. Floor underlayment is used to provide a stiffer, more structurally sound vinyl, laminate carpet, ceramic tile or wood floor. It is also used to remove visual imperfections in the subfloor, providing a smooth, defect-free surface that will not show shape conformation or draping through thin flexible floors like sheet vinyl and vinyl composite tile.

Floor underlayment has become more important in recent years as building construction has shifted to lower grade plywood, particleboard, and OSB (Oriented Stand Board) in subfloors. As vinyl sheet flooring has become thinner and more flexible, it has become increasingly important to have a perfect, smooth surface upon which to install resilient flooring. Plywood Floor underlayment provides such a surface.

The following are important factors to consider when selecting a particular floor underlayment for your specific installation needs.

To learn more about each component please select from one of the following topics:

- Special Floor Underlayment Features

- Floor Underlayment Thickness

- Floor Underlayment Size

- Floor Underlayment Technical Data Sheet

- Floor Manufacturer Requirements for Floor Underlayment

- Underlayment for Ceramic Tile (pdf)