How to Choose the Right Boards for Your Project

Correx Signs: What They Are, Why They’re Popular, and How to Choose the Right Boards for Your Project

If you need tough, lightweight, affordable signage for events, construction sites, estate agent boards, or short‑term promotions, Correx is one of the best materials you can choose. It’s durable, weatherproof, easy to print on, and cheap enough for bulk campaigns — which is exactly why it’s used everywhere from building sites to charity events.

This guide explains everything you need to know before ordering Correx signs, including what it’s made from, how long it lasts, what thickness you should choose, and how to get the best results when printing.

What Is Correx?

Correx is a lightweight, fluted polypropylene board commonly used for temporary and semi‑permanent signage. It has a corrugated internal structure (similar to cardboard, but made from plastic), which makes it strong, rigid, and weather‑resistant while staying extremely light.

It’s ideal for:

• Construction site safety signs
• Estate agent boards
• Event signage
• Directional signs
• Temporary outdoor advertising
• Promotional boards
• Election campaign signs
• Market stalls and pop‑up displays

What Is Correx Made From?

Correx is made from polypropylene, a tough, waterproof plastic that’s resistant to chemicals, moisture, and UV exposure. The fluted internal structure gives it rigidity without adding weight.

Is Correx Waterproof and Weatherproof?

Yes — Correx is fully waterproof and designed to withstand rain, wind, and general outdoor conditions. It won’t warp, swell, or fall apart like cardboard.

For long‑term outdoor use (6+ months), thicker boards (6mm–10mm) are recommended.

How Does Correx Compare to Other Sign Materials?

Here’s a quick comparison:

• Correx — lightweight, cheap, weatherproof, ideal for short‑term outdoor use
• Foamex — smooth, rigid PVC board, better for long‑term indoor/outdoor signage
• Dibond — aluminium composite, extremely durable, best for permanent signage

If you need something affordable and durable for a campaign, event, or site signage, Correx is usually the best choice.

How Long Does Correx Last Outdoors?

Typical lifespan:

• Short‑term campaigns (1–3 months): 4mm Correx
• Medium‑term outdoor use (3–12 months): 6mm Correx
• Longer‑term or exposed areas: 10mm Correx

UV printing helps maintain colour vibrancy over time.

What Thickness of Correx Should I Choose?

A quick guide:

• 4mm — Most common; estate agent boards, event signage, temporary notices
• 6mm — Construction sites, outdoor signage in windy areas
• 8mm — High‑impact environments where the sign needs to withstand physical force, wind, or long‑term outdoor exposure
• 10mm — Large boards, long‑term outdoor use, hoardings

If you’re unsure, 4mm is the standard for most general signage. Why not check out our entire correx range for yourself!

What Sizes Do Correx Boards Come In?

Correx can be cut to any size, but common options include:

• A4, A3, A2, A1, A0
• 600 × 400 mm
• 800 × 600 mm
• 1200 × 800 mm
• Full sheets (eg 2440 × 1220, 3000 x 1220, 3050 x 1524, 3050 x 2050) 

Custom sizes are available — and often the best value when planning multiple signs. Also check out our A formatted correx bundles are also available

Can Correx Be Printed in Full Colour?

Yes — Correx works perfectly with:

• UV printing
• Direct‑to‑board printing
• Vinyl application
• Screen printing

Full‑colour, high‑resolution graphics look sharp and vibrant.

Is Correx Recyclable?

Yes! — Correx is 100% recyclable polypropylene. Many customers choose it because it’s reusable, lightweight, and produces less waste than cardboard alternatives.

How Do You Install Correx Signs?

Correx is extremely easy to install. Common methods include:

• Cable ties (ideal for fences and scaffolding)
• Screws or nails
• Adhesive pads
• Frames or stakes
• Hanging with eyelets

If you’re ordering for outdoor use, adding eyelets makes installation much easier.

What Are the Benefits of Correx?

Correx is popular because it’s:

• Lightweight — easy to transport and install
• Durable — weatherproof and impact‑resistant
• Affordable — ideal for bulk campaigns
• Versatile — suitable for indoor and outdoor use
• Customisable — any size, shape, or design
• Recyclable — environmentally friendly option

It’s the perfect balance of cost, durability, and print quality.

What Are Correx Signs Used For?

Some of the most common uses include:

• Construction site safety boards
• Estate agent “For Sale” and “To Let” signs
• Event branding and directional signage
• Temporary shop signage
• Roadside advertising
• Festival and market signage
• Charity events and fundraisers
• Political campaign boards

If you need signage that’s tough, cheap, and fast to produce, Correx is the go‑to material.

How Much Do Correx Signs Cost?

Pricing depends on size, thickness, and quantity, but Correx is one of the most cost‑effective sign materials available.

Typical pricing starts from:

• A2 boards: from £2
• A1 boards: from £4
• Full‑sheet prints: from £28

Do You Offer Design Help or Artwork Checks?

Yes — artwork can be checked before printing, and templates are available for common sizes. If you don’t have a design yet, a simple layout can be created for you.

Accepted file types include:

• PDF
• PNG
• JPEG
• AI / EPS

For more details you can check out our design guide here

Correx Printing in Edinburgh

If you’re based in Edinburgh or the Lothians, you can order Correx signs with:

• Fast turnaround
• High‑quality UV printing
• Local delivery or collection
• Custom sizes and bulk pricing

Perfect for construction companies, estate agents, event organisers, and local businesses.

Ready to Order Correx Signs?

Whether you need a single board or a full batch for a campaign, Correx is a durable, affordable, and versatile choice for almost any project.

With over 20 years in the business delivering all over the UK there is never been a better time to Order Correx signs from First Display Edinburgh today!

Call out team on 0131 443 4164 or Email our team directly on team@firstdiplay.co.uk