Many poster sessions for course assignments rely on the use of tri-fold presentation boards, sometimes referred to as Science Fair poster boards.
These boards have standard measurements of 3' x 4' (36" tall, 48" wide).
Boards can be corrugated cardboard, or "foam board", and come in a variety of colors. There are more color options for corrugated boards, while foam boards are usually limited to black and white. Corrugated boards are less expensive than foam.
Generally, a black board will present a more powerful and professional image than a color board, or even white.
Most office supply, craft, art supply/hobby shops, and even big box and some grocery stores sell presentation boards. Prices vary widely. One way to save on the expense in Phoenix area is to wait for a discount coupon from Michael's Craft stores which regularly offers coupons for 40% discount on one item.
Sample Illustrations of Presentation Boards
You can extend the display area and the visual impact of your poster by using a title board.
Title boards provide rigidity to the poster by spanning the center section and interlocking with the side panels. The additional space a title board provides is perfect for title, presenter/affiliation detail, and even illustrative graphics.
Title Board Illustration
Pre-cut title boards are less readily available in retail stores, and tend to be expensive. But you can manufacture your own at very low cost from a plain sheet of corrugation or foam board.
Basic dimensions for a title board are: 36" x 10" Cuts in the bottom are about 4" from each end, and about 2" deep. The cuts should be as wide as the thickness of your board, or perhaps a smidgen narrower so they are snug.