22"x28" 2-Sided Foam Board Foam Board White, Royal Brites, , item 26824. Royal Brites White Foam Board is a light weight foam board sheet can be used as a display board, as a support for large posters, pictures and collages, for table-top displays, as a signboard for signs and signage and as a presentation board. Our Foam board can be cut with a sharp cutter and folded into a tri-fold project or display board. Cut it into any size you need for outdoor signs, yard sale signs, indoor signs, shapes for school projects and foam board crafts. Ink and paint receptive, our white foam board is great for arts and crafts projects, laminating, screen printing, framing, mounting, exhibits, prototypes, displays and models.