Corrugated Sign Panels 4x8x4mm

Corrugated Sign Panels 4x8 — Full Sheet Corrugated Plastic Stock

Full 4x8 corrugated plastic panels in 4mm thickness for sign fabrication, custom cutting and large-format signage. The same durable, weatherproof fluted polypropylene material used in standard sign blanks — sold in full sheet format for sign shops that cut their own sizes in-house. Yields approximately 8 standard 18x24 sign blanks per sheet.

Available in white and red. 17 available to ship today. No wholesale account required — transparent pricing with quantity discounts. Local pickup available same day in Omaha, NE — freight shipping nationwide for larger orders.

Specifications

• Material: Corrugated fluted polypropylene (Coroplast)
• Thickness: 4mm
• Size: 4ft x 8ft (48" x 96")
• Colors: White, Red
• Surface: Smooth, Corona treated — print-receptive
• Flute direction: Runs 8ft — correct orientation for H-stake insertion on cut blanks
• Outdoor durability: 2–3 years UV resistant

Applications & Uses

Full sheet stock for sign shops and fabricators cutting custom sizes in-house. Yields approximately 8 standard 18x24 sign blanks per sheet. Ideal for producing yard signs, real estate signs, election signs and retail displays. Cuts cleanly with a utility knife or panel saw — no special tooling required.

Compatible with Oracal 651 vinyl lettering, direct screen printing and digital printing with appropriate inks. Pair with H-stakes and yard sign frames for complete ground-mounted sign solutions.

For smaller pre-cut blanks ready to use see our corrugated plastic blanks 18x24. For rigid permanent signage see our aluminum sign sheets and ACM sign sheets.

Why Full Sheet vs Pre-Cut Blanks

Pre-cut 18x24 blanks are ready to use straight out of the box — the right choice for standard yard sign production. Full 4x8 sheets are the right choice when you need a non-standard size, want to maximize material yield from a single sheet, or are running high-volume in-house fabrication where cutting your own blanks is more cost-effective. At $17.00 per sheet at 10+ versus $2.38 per blank at 50+, the math favors full sheets for shops cutting 8+ blanks per sheet consistently.

Ordering & Shipping

No wholesale account required. Transparent pricing — $19.00 per panel at 1+, $17.00 at 10+. 17 available to ship today. Local pickup available same day in Omaha, NE. This product ships via freight for larger quantities — contact us for freight quotes on bulk orders. Free shipping on qualifying orders over $149. Sign shops, fabricators and political campaign suppliers welcome.