When you need sturdy, lightweight backing for photos, posters, or DIY art, 11×14 foam core boards offer a reliable solution. This article reviews five top options in this size, highlighting durability, ease of cutting, and acid-free properties that protect artwork over time. Whether you’re mounting photos for a gallery, preparing school presentations, or planning a craft project, these boards balance rigidity with workability to deliver professional results.
Summary table of selected products:
| Product | Size | Thickness | Color | Pack | Brand |
|---|---|---|---|---|---|
| Mat Board Center, Pack of 10 | 11×14 in | 1/8 in | White | 10 boards | MBC MAT BOARD CENTER |
| 20Pack Foam Boards 11×14 | 11×14 in | 1/8 in | White | 20 boards | ASelected |
| Mat Board Center, Pack of 5 | 11×14 in | 1/8 in | White | 5 boards | MBC MAT BOARD CENTER |
| 20 Pcs Black Foam Board 14×11 | 14×11 in | 5/32 in (0.2 in) | Black | 20 boards | STRAWBLEAG |
| Frienda 50 Pack 11×14 Foam Boards | 11×14 in | 1/8 in | White | 50 boards | Frienda |
| 30Pack 11×15 White Foam Core Board | 11×15 in | 3/16 in | White | 30 boards | Evadow |
| Acrux7 20 Pack 11×14 | 11×14 in | 1/8 in | White | 20 boards | Acrux7 |
| Golden State Art 10 Pack 11×14 | 11×14 in | 3/16 in | White | 10 boards | Golden State Art |
Mat Board Center: 11×14 White Foam Boards, Pack of 10

The Mat Board Center set comprises 10 acid-free white foam boards, each measuring 11×14 inches with a 1/8 inch thickness. These boards are designed for long-term display, offering a sturdy backing that resists yellowing and warping. The white surface accepts paint, markers, and adhesives well, making them suitable for mounting photos, artwork, or educational displays. Being acid-free helps preserve the integrity of mounted pieces over time, an essential feature for archival projects.
ASelected 20Pack: 11×14 Foam Core Boards, White

This 20-pack provides a bulk option for classrooms or studios. Each board is 11×14 inches with a 1/8 inch thickness, featuring a smooth white mat surface over a polystyrene core. The boards are lightweight yet rigid, making them easy to handle and cut with standard craft blades. The acid-free design helps protect artwork, photos, and posters against discoloration, while the surface finish supports clean mounting and neat paint transfers. ASelected boards are suitable for mounting, presentations, and DIY art projects.
MBC MAT BOARD CENTER: Pack of 5 11×14 Foam Boards

This pack includes five white foam boards, each measuring 11×14 inches with a 1/8 inch thickness. Acid-free and easy to cut, these boards offer a reliable option for mounting crafts, lesson visuals, or small gallery pieces. They balance lightness with sturdiness, enabling clean edges after trimming. The acid-free core helps safeguard the mounted material for presentations and studio displays over time. Lightweight, yet sturdy enough for frequent use in classrooms and studios.
STRAWBLEAG 20 Black Foam Boards, 14×11

These 20 black foam boards measure 14×11 inches and have a thickness of about 5 mm (0.2 inch). The high-density polystyrene core is lightweight, durable, and warp-resistant, with a smooth black surface suitable for painting, marker work, and adhesives. The boards are easy to cut into custom shapes and edges are clean when trimmed. While not 11×14, they provide a versatile color option for contrast displays and mounting projects that require a dark backing.
Frienda 50 Pack: 11×14 White Foam Boards

The Frienda set includes 50 white foam boards, each 11×14 inches and 1/8 inch thick. This bulk option is well-suited for classrooms, art clubs, or large-scale DIY projects. The boards use polystyrene foam with a smooth surface, making them easy to paint, glue, or mount. The acid-free construction supports longer preservation of mounted pieces, while the lightweight build supports easy handling and transport for group activities.
Acrux7 20 Pack: 11×14 White Foam Boards

Acrux7’s 20-pack features 11×14 inch boards with 1/8 inch thickness. The surface is smooth and ready for screen printing, glue, paint, or markers. The boards use a high-quality white foam core with an acid-free UV-protected paper coating, offering rigidity without excess weight. They are easy to cut and shape, making them suitable for mounting photographs, dioramas, and architectural models. The coating helps prevent warping during handling and display.
Golden State Art 10 Pack: 11×14 White Foam Boards

Golden State Art offers a 10-pack of 11×14 white foam boards with a thickness of 3/16 inch (5 mm). The boards are acid-free and designed for mounting, crafts, and presentation. The thicker core adds extra rigidity, which helps prevent bending or creasing under displays or framing. Ideal for more substantial mounting projects and for situations where a slightly heavier board is advantageous, such as firm backing for larger prints or display panels.
Buying Guide: Key Considerations For 11×14 Foam Core Boards
- Material and core: Look for polystyrene or similar foam cores with acid-free, archival-grade facings to protect artwork over time. Acid-free is important for longevity, especially for photos and prints.
- Thickness and rigidity: Common thicknesses range from 1/8 inch to 3/16 inch. Thicker boards provide more stiffness, which helps with mounting heavier items and reduces warping.
- Surface finish: A smooth, paint-friendly surface is essential for easy mounting, painting, and marker work. Matt or satin finishes are typically preferred for clean mounting.
- Color options: White is standard for mounting and foreground accessibility, but black or colored backings can create high-contrast displays or themed presentations.
- Size availability and pack quantity: Bulk packs are cost-effective for classrooms or studios, while smaller packs suit individual projects. Ensure the exact dimensions align with your needs (11×14 is the focus here).
- Ease of cutting and edges: Boards should cut cleanly with standard craft knives. Consider edge finishing to avoid rough edges in displays or frames.
- Archival safety: For museum-grade displays or valuable art, verify that both core and facing materials are acid-free and UV-stable to resist yellowing and degradation.
- Applications: Consider whether you need boards for mounting photos, presentations, crafts, architectural models, or signage, as some boards offer better rigidity or texture for painting and gluing.
- Color coordination: White is versatile, while black or colored boards offer design contrasts for posters and art pieces.
Across these options, the best choice depends on your project needs: archival quality, bulk quantities, thickness, and the level of rigidity required. For classrooms and studios, bulk white 11×14 boards with 1/8 inch thickness are a reliable default. For more durable displays or heavier artwork, options with thicker cores or thicker facing may be preferable.