Workout Room Flooring Suggestions

Q: I would like to install a laminate (floating) floor in my basement, in a workout area (under a treadmill and a recumbent bike). My home is 17 years old, basement is dry and presently have carpeting; which I know I must remove with padding. Can laminate be installed under a treadmill? Could you recommend a particular brand? Also, should I use a particular vapor barrier/foam? Lastly, should I glue the laminate? If so, What type of glue should I use?
A: Floating floors can work with work out machines like treadmills. They can even work for something like a pool table assuming a few things are kept in mind. First of all, after you remove the existing carpet and pad, take your time to ensure the subfloor is as flat as possible. From here any 6mil poly vapor barrier will do, there is no need for a specific brand, but keep in mind this is a thin plastic (think like saran wrap for your floor) and not a foam, the foam is a type of underlayment.
The key here to making this floor suitable for your treadmill is a higher grade laminate with a dense underlayment, cork being your best bet. Underlayment is crucial because less dense underlayments, typically foam or rubber, leave a floor somewhat springy. Floating floors will naturally move ever so slightly under foot, but a dense underlayment, especially cork, removes nearly all of this movement and for heavier items, this is critical. Most underlayments act as a cushion where as cork does not give like the foams. Do not glue your laminate into place as modern laminates are not meant for this type of installation.
Product wise, avoid floors which have an attached underlayment and look into AC4 or AC5 rated floors. Thickness is not a major issue, though it can help here, but keep in mind a very good laminate like Quick Step Perspective (8.5mm) and Pergo Select (10mm) both perform very well, better than cheaper laminates of similar or greater thickness. Other good choices would include Westhollow’s South Pacific or Handscraped lines.