Best Foam Boards Under $100 (2026)
We selected boards under $100 based on value score that weights size variety, thickness, acid-free construction, pack count, and user-rated reliability
The Verdict
- Best Overall: Mat Board Center Foam Boards, 16x20, Pack of 10, 1/8 inch — Best for budget-minded mounting: ten 16x20 sheets with acid-free liners that balance cost and consistent size
- Best Value: Mat Board Center Acid-Free Foam Boards, 16x20, Black (Pack of 10) — Best for contrast presentations: ten 16x20 acid-free black boards that hide edges and add visual depth
This roundup highlights foam boards under $100 that balance material quality, size variety, and value for office, display, and craft uses. Selections were ranked by a value score combining price, size options, board thickness, acid-free liners, and user-rated durability
Top Picks
-
1
Best Overall Mat Board Center Foam Boards, 16x20, Pack of 10, 1/8 inch
Best for budget-minded mounting: ten 16x20 sheets with acid-free liners that balance cost and consistent size
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
-
2
Foam Board 24x24x3/16 (5mm) - 12 Pack, White, Acid Free
Best for large, rigid displays: 24x24 3/16" (5mm) sheets in a 12-pack with acid-free white liners for sturdy presentation
White foam core boards, 24x24
- acid-free core
- double-sided rigid surface
- 12-pack value
-
3
Mat Board Center Foam Boards, 20x24, 10-pack, white, 1/8"
Best for medium-format projects: ten 20x24 acid-free sheets offering a practical balance of size and pack quantity
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
-
4
Mat Board Center Foam Boards, 18x24, White, Pack of 10
Best for general office use: ten 18x24 acid-free white boards sized for posters, displays, and mounting tasks
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
-
5
Best Value Mat Board Center Acid-Free Foam Boards, 16x20, Black (Pack of 10)
Best for contrast presentations: ten 16x20 acid-free black boards that hide edges and add visual depth
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
-
6
Union Premium Foam Board 18 x 24 x 3/16" (White) 10-Pack
Best for professional-looking displays: ten 18x24 3/16" premium white boards with a matte finish for photography and presentations
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
-
7
UCreate White Foam Board 20x30, 10 Sheets
Best for oversized projects: ten 20x30 white sheets that simplify large backings and school or craft projects
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
-
8
Golden State Art Foam Boards, Pack of 10, 20x24, White
Best all-around medium pack: ten 20x24 white boards that suit framing, mounting, and display tasks consistently
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
-
9
UCreate White Foam Board, Matte 20 x 30, 10 Sheets
Best budget large sheets: ten matte 20x30 white boards offering large-format coverage for crafts and presentations
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
-
10
Union Premium Foam Board 24x36x3/16" (10-Pack) Matte Finish
Best for wide-format displays: ten 24x36 3/16" matte boards with black paper liners for photography and exhibit backings
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