Foam Board Signs

Foam board signs give you a perfectly flat, lightweight display panel with a smooth photographic surface. Printed full color on 4mm foam board in 18 sizes, single or double-sided, with optional grommets — and same-business-day production when you need it today.

• 4mm foam board — a rigid foam core between two smooth paper faces
• Perfectly flat surface that reproduces photography and fine type far better than corrugated plastic
• Very light — large panels mount with strips or standoffs, no heavy hardware
• 18 sizes from 12" x 12" up to 48" x 48"
• Same-day and next-business-day options

Choose your print sides

• Printed 1 sided (4/0) — color front, white back. The right choice for anything mounted against a wall, an easel back or a foam-board stand.
• Printed 2 sided (4/4) — different artwork on each face, for hanging displays seen from both sides.
• Printed 2 sided — same image — identical both faces, for suspended signage in a lobby or trade show aisle.

Choose your grommet pattern

• No grommets — the usual choice. Foam board is normally propped on an easel or fixed with mounting strips.
• Top 2 corners or all 4 corners — for hanging a panel from a rail, a ceiling grid or a trade show frame.
• Every 2–3 feet on top and bottom, on sides, or all around — for large hanging panels that need the load spread across more fixings.

Foam board or coroplast — which one?

Foam board is an indoor material. Its faces are paper, so it prints beautifully but will delaminate and warp if it gets wet. Use it for trade show graphics, presentation boards, retail displays, event signage, photo enlargements, science fair and awards displays — anywhere the surface quality is visible up close and the sign lives inside.

If the sign is going outdoors or anywhere it might get rained on, order coroplast yard signs instead; they are waterproof but have a visible fluted texture. For an indoor board that is stiffer and more durable than foam, see styrene signs or Sintra board.

Mounting foam board without damaging it

Foam board dents if you press on it, so avoid clamps and spring clips on the printed face. Removable mounting squares on the back are the cleanest wall solution. For a floating look, use standoff hardware through grommeted holes. For events, an easel back or a simple A-frame holds a 24" x 36" panel comfortably. Store panels flat, never leaning against a wall for weeks, or the board takes a permanent bow.

Specs at a glance

• Material: 4mm foam board (paper-faced foam core)
• Printing: full color, 1 sided (4/0) or 2 sided (4/4)
• Sizes: 18 options, 12" x 12" through 48" x 48"
• Grommets: 6 patterns, or none
• Use: indoor — not weather resistant
• Turnaround: same business day, next business day or 2 to 4 business days

Foam Board Signs FAQ

Mounting, durability and indoor-versus-outdoor answers are below.