150 pieces 2 Pack Black 22in X 28in Posterboard - Poster & Foam Boards

Peacock Railroad Poster Board - 22 x 28 - 50 / Carton - White

25 of 22 X 28 Metallic Silver Poster Board - at

ArtSkills 44 x 28 Trifold Foam Display Board for School and Science Fair Projects, 5-Pack Black : Office Products

24 pieces of 36 X 48 Black TrI-Fold Corrugated Presentation Board

24 Pack: 22”; x 28”; Black Poster Board by Creatology™ : Office Products

Wall-Sized Raster Posters : 9 Steps - Instructables

Pacon Poster Board, 22 X 28 Inches, Chalkboard Black, 25 Sheets : Target

Creative Arts & Education

It's made with modified expanded polystyrene; a rigid, foamed plastic with resilient closed cells. The benefits include permanent R-value, inherent water resistance, excellent physical strength and dimensional stability. The high R-value at a comparatively low cost makes it a perfect insulation choice for the roof, perimeter, cold storage, exterior and cavity wall insulation. Energy efficient expanded polystyrene (EPS) R-value approximately 4 per in.

Garage Door Insulation Kit (8-Pieces)