I ordered the foam to use to build a sprung floor in my basement for my daughters. I created a 20'x11' using overlapping sheets of wood as the subfloor with marley installed over top. These foam pads were the base of my floor.
The foam arrived in a compact box. It installed super easy. If you are on the fence about doing the adhesive yourself or buying the version with the adhesive already attached, save yourself a ton of time, and buy the product with the adhesive included. It made the job so much easier. I had a helper (my wife) peel the adhesive from the foam while I measured where to install them in order to provide a consistent sprung feeling on the floor. The end result was fantastic and it saved me a ton of time on the job.