Tri-fold cushions are often purchased for occasional use. If this is the case for you, we recommend our less-expensive Econoflex™ foam. If your tri-fold cushion will get everyday use, then we recommend our Everflex™ foam.
Dacron wrap is purely optional for tri-fold and bi-fold cushions. Dacron batting is primarily to give a cushion a fuller look, so if your tri-fold cushion doesn’t need that, you can forego dacron wrap. If you do want the fuller look and extra comfort that dacron provides, we’d suggest a bookwrap treatment for a tri-fold cushion as the spaces where the cushions join together don’t need a wrap.
There is no rule-of-thumb for the thickness of a tri-fold cushion. The appropriate thickness depends on how you’ll use the cushion, and how often it will be used. If your tri-fold cushion is being used as a sleeping surface, we’d generally recommend a minimum of two inches of a firmer foam like our Everflex V54 or Econoflex C55. For a bit more sleeping comfort in a tri-fold, we’d recommend 3–4 inches of our Everflex V44 or Econoflex C33. If you need further guidance, our friendly Customer Service team is a great source of exper advice.