Double Board
Sturdy, thin, white double board is most popular for framing purposes.

Foam Core
3/16 inches thick. Ideal for shows, you can hang it or frame it. In humidity it will bend.

Gator Board
3/16 inches thick. Sturdy but light weight like foam with black back.
Ideal for displaying without framing sonce it does not warp.

Masonite
Very hard & heavy board. Ideal for painting or canvas mounting.

Exhibit Mount
2 inches thick hard surface but light weight. Ideal for trade shows or displays.