Best Foam Boards Under $100 (2026)
We ranked boards under $100 by a composite value score using user ratings, size and color options, acid-free construction, and pack quantity
Top Picks
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1
Mat Board Center Foam Boards, 16x20, Pack of 10, 1/8 inch
Acid-free white foam boards in a 10-pack, 16x20 inch, 1/8 inch thick for durable displays. Customers cite quality, value, and easy cutting for matting photos
- acid-free for archival use
- 10-pack for bulk projects
- 1/8 inch thick for rigidity
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2
Foam Board 24x24x3/16 (5mm) - 12 Pack, White, Acid Free
White foam core boards, 24x24
- acid-free core
- double-sided rigid surface
- 12-pack value
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3
Mat Board Center Foam Boards, 20x24, 10-pack, white, 1/8"
Acid-free foam boards in a 10-pack for professional display. White, 20x24 inches, 1/8" thick, polystyrene core. Customers note good quality, easy cutting and use, with some warping reports
- acid-free for long-lasting display
- premium polystyrene core
- easy to cut and handle
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4
Mat Board Center Foam Boards, 18x24, White, Pack of 10
Acid-free 18x24 inch white foam boards with a 1/8 inch core, sold in a pack of 10 for professional display. Customers note good quality, value, and ease of cutting and use
- acid-free and archival-friendly
- pack of 10 boards
- 1/8 inch thick foam core
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5
Mat Board Center Acid-Free Foam Boards, 16x20, Black (Pack of 10)
Acid-free 16x20 inch foam boards in black, 3/16 inch thick, ideal for matting and displays. Customers note good quality, easy cutting and use, with some concerns about warping
- acid-free for archival use
- pack of 10 for bulk projects
- 16x20 size with 3/16" thickness
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6
Union Premium Foam Board 18 x 24 x 3/16" (White) 10-Pack
Lightweight, rigid white foam boards with a paper liner and polystyrene core. Suitable for crafts, framing, and mounting displays; noted for sturdiness and value by users
- ph-neutral paper liner
- double-layer packaging protection
- high-density foam core
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7
UCreate White Foam Board 20x30, 10 Sheets
White foam board with a lightweight, rigid surface. 3/16" sheets are easy to cut and accept a wide range of media. Customers cite good quality and value, with some concerns about sturdiness and warp
- acid-free surface
- easy to cut
- wide media compatibility
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8
Golden State Art Foam Boards, Pack of 10, 20x24, White
Pack of 10 20x24 white foam boards, 1/8 inch thick. Durable, lightweight, and easy to cut; ideal for mounting and backing projects. Customers note sturdy quality and good value, with some mixed feedback on thickness
- acid-free and durable foam
- easy to cut and lightweight
- value for money in a multi-pack
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9
UCreate White Foam Board, Matte 20 x 30, 10 Sheets
White foam board with a lightweight, rigid surface; 3/16" thickness. Useful for crafts and presentations. Some customers note waves on the surface and occasional denting
- matte white finish
- 20 x 30 in sheets
- 10-sheet pack
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10
Union Premium Foam Board 24x36x3/16" (10-Pack) Matte Finish
Lightweight, rigid foam board with a black paper liner and polystyrene core. Suitable for crafts, framing, mounting, and displays. Customers note sturdiness, accurate sizing, and versatile use
- ph-neutral black paper liner
- sturdy yet lightweight
- protective packaging for corners