What is the best width of Easy Slider Deer Blind Track System to use?

First of all, thanks for your question. You know that 1/8", 3/16", 1/4" and 1/2" Plexiglass, PolyGal, Glass and Lexan are expensive - so your budget may be an important factor. However, depending on materials selected, always remember that longevity is also of the utmost consideration. I usually suggest a 1/8" Lexan material from Home Depot or Lowe's - but my first choice is the 3/16" thick plexiglass - good durability and strength over the long term.