Top 9 18×18 Poster Board – Poster Boards

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1. School Smart

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1485742, 22 x 28 Inches, White, 6-Ply, School Smart Railroad Boards, Pack of 25

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School Smart #ad - Smooth, uniform finish for a professional look of outdoor signs or posters. Perfect for construction, mounting, block printing, painting, markers, mats, art projects, stenciling and posters. The 6-ply white railroad board is the ideal choice for any creative project. Sold as a pack of 25. Made with sturdy and stiff construction, yet easy to cut and trace. Contains No allergens. Create bold signage that stands out. Measures 22 x 28 inches. Great for stenciling and block printing. Brilliantly colored on both sides with a smooth uniform finish.
BrandSchool Smart #ad
ManufacturerROSELLE PAPER INC #ad
Height0.04 Inches
Length28 Inches
Weight0.3 Pounds
Width22 Inches
Part Number1485742
Model1485742

2. School Smart

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22" x 28", School Smart 1485739 Railroad Board, 4-ply Thickness, Assorted Color Pack of 25

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School Smart #ad - Work exceptionally well for stenciling and block printing. Sturdy 4-play constructed while still being easy to cut and trace. Serve as eye-catching display boards with a smooth, uniform finish and vivid colors on both sides. Great for fun photo backings, vision boards, science or book fair displays, and more fair.
BrandSchool Smart #ad
ManufacturerROSELLE PAPER INC #ad
Height0.03 Inches
Length28 Inches
Weight0.28 Pounds
Width22 Inches
Part Number1485739
Model1485739

3. PACON

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12" x 18", 100 Sheets, Heavyweight, White, Pacon PAC5214 Tagboard

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PACON #ad - Smooth surface for working with pencils, pens, markers, crayons, and other media. Measures 12" x 18"; 100 sheets. Acid-free and recyclable. Exceptionally strong, multi-purpose tagboard can be used for hundreds of arts and crafts projects. Heavyweight 11 pt.
BrandPACON #ad
ManufacturerPacon #ad
Height1.08 Inches
Length18 Inches
Weight6.09 Pounds
Width12 Inches
Part NumberPAC5214
ModelPAC5214
WarrantyNo Warranty

4. MBC MAT BOARD CENTER

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Black, Pack of 10 3/16" Black Foam Boards 18x24, Mat Board Center

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MBC MAT BOARD CENTER #ad - Thickness: 3/16". Color: bLACK. The outside size is 18x24 and fits 18x24 Frame. This item comes with 10 single foam boards. Pack of 10 18x24 Foam Boards.
BrandMBC MAT BOARD CENTER #ad
ManufacturerMBC MAT BOARD CENTER #ad
Height1.8 Inches
Length18 Inches
Weight2.3 Pounds
Width24 Inches
Part Number10-B-FB
Model142-FOAM-1824-10

5. Navy Penguin

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Premium 12 Pack, White Poster Board, Acid Free, Art, Double Sided, Lightweight Signboard Foamboard for Crafts, Display, Rigid, Framing, Presentation and Projects 16x20", Foam Board 16 x 20 x 3/16"

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Navy Penguin #ad - Smooth surface accepts screen printing, mounting displays and exhibits, indoor signs and notices. Easy to cut. Size 16 x 20" - 3/16-inch thick 5 mm, paint or markers. Multi-functional use - delivers effective performance when planning, education, kindergarten, school, college, dorm room or any other place.

Packed in protective packaging - no damaged edges or corners. Premium 12 pack - 12 foam boards in each package. Double sided, strong, rigid but amazingly lightweight. If for any reason you are not happy with the foam board, we'll refund your money immediately, please let us know, no questions asked.1

100% satisfaction guaranteed - backed by our lifetime Warranty. Top quality material acid free - polystyrene extruded foam laminated between two sheets of paper acid free. Great help for managers, teachers, office, presentation and organization is needed. Ideal for crafts, framing, school projects, glue, white color. Suitable for home, students and kids.
BrandNavy Penguin #ad
ManufacturerNavy Penguin #ad
Part NumberNP41604134

6. PACON

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25 Sheets, 22" x 28", White, Pacon 4-Ply Railroad Board

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PACON #ad - Easy to write on surface. Pacon 4 ply white rrbd, 25 Sheets per Carton. White on both sides. Ideal for construction/art projects, mounting, mats, stenciling, posters, and anchor charts. Construction. Uncoated finish. 4-ply 14 pt.
BrandPACON #ad
ManufacturerPeacock Railroad Board #ad
Height0.5 Inches
Length28 Inches
Weight0.28 Pounds
Width22 Inches
Part NumberPAC104159
Model104159
WarrantyNo Warranty

7. Elmer's

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18 X 24, Elmer's 950023 White Pre-Cut Foam Board Multi-Packs, 2/pk

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Elmer's #ad - Sold as 2/Pack. Pre-cut sheets are uniform and even in size! Lightweight but strong and rigid to resist denting and crushing. Perfect for crafts, school projects, framing and mounting.
BrandElmer's #ad
ManufacturerELMER'S PRODUCTS, INC. #ad
Weight0.14 Pounds
Part NumberEPI950023

8. Excelsis Design

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Foam Boards Acid-Free, White with White Core Foam Core Backing Board, Pack of 15, 12x18 Inches Many, Double-Sided Sheet, 3/16 Inch Thick Mat, Excelsis Design

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Excelsis Design #ad - Used for backing prints, pictures, and other things that need support. Excelsis design is the only seller who is able to provide customers with 15 boards of acid-free foam boards at such attractive prices. It is then meticulously packaged with very thorough corner protection.

Foam boards are perfect for arts, photos, projects, crafts, framing, and mounting displays. Best quality and smart packaging. Using highest-grade materials, our product is carefully cut to exact size. Thousands of people have bought from us and are in love with our products and friendly service. Acid causes the destruction of paper over time - our boards are free from this problem. 3/16 inch thickness is perfect and is more durable than thinner 1/8 inch variations you see offered by others.

Lifetime guarantee and best in class service. We will fully refund or replace your product for free if you happen to have any issues. If you have any issues or questions, just message us. Multiple uses and 3/16 inch thickness. As a family-run business, we are blessed to provide VIP-like service to our awesome customers. Acid-free.
BrandExcelsis Design #ad
ManufacturerExcelsis Design #ad
Part Number712038694211

9. Excelsis Design

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Excelsis Design, Foam Boards Acid-Free, 12x18 Inches Many Sizes Available, 1/8 Inch Thick Mat, Pack of 15, White with White Core Foam Core Backing Boards, Double-Sided Sheets

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Excelsis Design #ad - We will fully refund or replace your product for free if you happen to have any issues. Using highest-grade materials, our product is carefully cut to exact size. Our economies of scale due to our absolute laser focus on being the best foam board company in the marketplace allow us to pass the savings onto you.

Multiple uses and 1/8 inch thickness. If you have any issues or questions, just message us. Excelsis design is the only seller who is able to provide customers with 15 boards of acid-free foam boards at such attractive prices. Thousands of people have bought from us and are in love with our products and friendly service. Used for backing prints, and other things that need support. Acid causes the destruction of paper over time - our boards are free from this problem.

It is then meticulously packaged with very thorough corner protection. Lifetime guarantee and best in class service. Best quality and smart packaging. As a family-run business, we are blessed to provide VIP-like service to our awesome customers. Acid-free. Due to multiple customer requests, crafts, pictures, projects, photos, we are now happy to provide 1/8 inch thick boards.
BrandExcelsis Design #ad
ManufacturerExcelsis Design #ad
Part NumberExcelsis Design Foam Board 1/8 Thick