LOVE THIS! 2 X 4 end pieces!!! The Instalation took about two days. We used a heavy bed of Bostic Best adhesive, 25 feet per gallon to act as moisture barrier and glue. Installed on 3/4 plywood on top of a crawl space. Pieces were 3/4 inch thick. My sons and I sanded, trowel filled with Glitsa wood flour fill, then poly sealed and gave two coats of Bona natural finish.