Glue down flooring installation method

Below is the glue down installation method for hardwood and engineered wood floors: Glue down flooring installation method. Glue Down: Modern developments in adhesive composites now make it possible to glue down a 3/4" solid wood flooring slab to a concrete base. Engineered wood flooring, (which is a sandwich of 1/16" to 1/8" inch of finish wood on top and non-finish plywood underneath), can be glued directly to a concrete base as well. Other types of flooring, such as 5/16" thick parquet, must always be glued down even if the sub-floor is wood.