Ready to create vibrant, weatherproof signs for garage sales, open houses, parties, or promotions? Corrugated plastic sign blanks offer a lightweight, durable canvas that’s easy to customize. This guide highlights five top picks—covering common sizes like 18×12 and 18×24, plus larger 24×36 options—so you can choose blanks that fit your project and budget while standing up to outdoor conditions. Each listing includes key features to help you compare materials, durability, and versatility at a glance.
| Product | Size | Material | Pack Count |
|---|---|---|---|
| Newflager 18×12 (B0D2CW9XQ6) | 18″ x 12″ | Corrugated plastic | 1 |
| Newflager 18×12 (B0CQLZK3B1) | 18″ x 12″ | Corrugated plastic | 10-pack |
| Juvale 24×36 (8-pack) | 24″ x 36″ | Corrugated plastic | 8-pack |
| Newflager 18×24 (B0F1MPT8BD) | 18″ x 24″ | Corrugated plastic | 1 |
| WENWELL 18×24 | 18″ x 24″ | Corrugated plastic | 20-pack |
Newflager 18″ x 12″ White Corrugated Plastic Sign Blank Board
Size: 18 inches tall by 12 inches wide with a 4 mm thickness. Made from high-quality corrugated plastic yard board, this sign is durable, waterproof, and reusable. Suitable for a wide range of applications, including garage sales, rental notices, birthday celebrations, and DIY project signage. Its light weight makes handling easy, while its white surface offers a clean canvas for paint, markers, or vinyl cutouts.
Newflager 18″ x 12″ White Corrugated Plastic Sign Blank Board (10-Pack)
Size: 18″ x 12″ with 4 mm thickness. This pack provides 10 durable blank signs suitable for sharing multiple messages or multiple events. The corrugated plastic is designed to withstand outdoor conditions, is waterproof, and reusable. Ideal for advertising, open houses, garage sales, estate sales, yard signs, and DIY decor. The white surface serves as a versatile base for paint, markers, stencils, or vinyl lettering.
Juvale Corrugated Plastic Board Yard Signs – 24×36, White, 8-Pack
Versatile yard signage with a 24×36 inch footprint. This 8-pack offers a blank canvas for birthdays, open houses, and outdoor events. The 4 mm thick corrugated board is designed to withstand wind and rain, and the white surface is easy to customize with paint, markers, or stencils. The large size provides ample space for bold messages, bold graphics, and legible typography from a distance. Works well for DIY projects, promotional signs, and seasonal displays.
Newflager 18″ x 24″ White Corrugated Plastic Sign Blank Board
Size: 18″ x 24″ with 4 mm thickness. Built from durable corrugated plastic, this sign is waterproof and reusable, suitable for advertising, rentals, garage sales, open houses, and DIY projects. The larger 18×24 size offers more message space for clear, legible signage from a distance, whether used for single- or multi-day events. Its white surface is ideal for bold color contrasts and clear lettering.
WENWELL 20 Pack Large Blank Yard Signs – 18×24″
This 20-pack delivers a generous selection of large blank yard signs, each measuring 18×24 inches. They are designed for easy customization and outdoor durability. The 4 mm thick corrugated plastic provides weather resistance, making these signs suitable for lawn displays, business promotions, events, and campaigns. They’re lightweight for easy mounting and transport, and the white surface supports a range of printing and painting techniques.
Buying Guide: Key Considerations for Corrugated Plastic Sign Blanks
- Size options: Choose signs in 12×18, 18×12, 18×24, or 24×36 inches depending on message length, viewing distance, and mounting space. Larger signs provide more room for text and graphics but weigh more and can require sturdier supports.
- Thickness and durability: Most blanks use around 4 mm thick corrugated plastic. Thicker boards offer greater stiffness and wind resistance but may be heavier and more expensive.
- Waterproof and outdoor resilience: Look for weatherproof materials designed to withstand sun, rain, and temperature fluctuations. Reusability and UV resistance help signage last across multiple events.
- Financial practicality: Bulk packs reduce per-sign cost and are ideal for frequent events. Consider how many signs you truly need versus how many you’ll reuse.
- Customization method: Surfaces that accept paint, markers, vinyl, or printed overlays give you flexibility. Ensure the surface is receptive to your preferred medium and project timeline.
- Reusability and mounting: Consider whether signs will be hung, staked, or placed on stands. Flat boards with cutouts or handles can improve portability and display versatility.
- Color and surface finish: White signs provide high-contrast readability, but some projects benefit from colored backgrounds or printed designs for branding consistency.
Overall, corrugated plastic sign blanks combine light weight with outdoor durability, making them a versatile choice for DIY signage. When selecting, balance size, durability, pack quantity, and customization needs to align with your event timeline and display strategy.