Free Shipping. Buy Elmer's Tri-fold Project Display Board at Walmart.com Find product information, ratings and reviews for Elmer's 36x48 Trifold Corrugate Project Display Board online on Target.com. You can purchase and compare prices of this and many other products on our site at: http://www.mybinding.com/elmer-s-36-x-48-tri-fold-project-display-board-2. Elmer's foam board and display boards are for science fair projects, school projects, craft projects, around the office, and more. Tri-fold project display board makes displaying graphics and information easy and neat; Ideal for school or business presentations, project displays, science fairs and more