Engineered Flooring 3/8" 10mm 1/2" 12.7mm 9/16" 14mm Staple Down Installation 5/16” For Glue Down Only STAPLE DOWN INSTRUCTIONS ATTENTION Adequate and proper stapling as well as soundness of the subfloor should be ascertained. Foreign material shall be removed from the subfloor surface and swept clean. The clean subfloor surface shall be covered, wall to wall, with 15 Inspect ALL materials carefully BEFORE installation.