Executive Summary

For a typical 150m² UK house, you'll generally need 55–60 standard Correx sheets (2440mm × 1220mm), allowing for cutting around rooms, staircases and doorways. Most professional contractors also recommend ordering a few extra sheets to account for changes on site and to keep work progressing without delays. TI-Pro® Protective Boards provide the same reliable temporary floor protection, with free next working day delivery available across most of the UK.

How Many Correx Sheets Are Needed for a 150m² House?

A typical 150m² residential property requires approximately 55–60 sheets of Correx or TI-Pro® Protective Boards to provide full floor protection throughout the project. While the theoretical coverage is around 50 sheets, experienced contractors allow additional material for cutting, overlaps, awkward room layouts and staircases.

A standard protection board measures 2440mm × 1220mm, covering approximately 3m².

Property Size	Approximate Sheets Required
75m² Flat	25–30
100m² House	35–40
150m² House	55–60
200m² House	70–75
250m² House	85–90

The exact quantity depends on several factors, including:

Open-plan versus segmented layouts
Number of staircases
Internal walls and doorways
Whether every room is being protected
The amount of cutting required around fitted kitchens and bathrooms

Most professional builders prefer ordering slightly more than the calculated requirement. A few additional TI-Pro® Protective Boards can prevent costly interruptions if extra areas need protecting or damaged sheets need replacing.

Which Thickness of Correx or TI-Pro® Protective Board Should You Choose?

Choosing the correct protection board is just as important as ordering the right quantity.

For most residential refurbishment projects:

Thickness	Best For
2mm	Decorating, painting and light foot traffic
3mm	General building works and flooring installation
4mm	Heavy trade traffic, kitchen installations and longer-term site protection

If multiple trades will be working on site over several weeks, a thicker protection board generally provides better durability and can often be reused throughout the project.

TI-Pro® Protective Boards are designed to withstand the demands of busy building sites while remaining lightweight, waterproof and easy to cut on site.

Why Do Professional Contractors Order More Correx / TI-Pro Than the Floor Area Suggests?

Although the maths suggests around 50 sheets for a 150m² property, experienced contractors rarely order the exact calculated quantity.

That's because real building sites aren't perfect rectangles.

Additional sheets are commonly needed for:

Staircases
Hallways
Kitchen islands
Internal walls
Door reveals
Overlapping joints
Protecting materials while work continues

Ordering a small surplus also helps maintain productivity. Rather than stopping work because protection has run short, contractors can continue installing flooring, decorating or carrying out second-fix work without interruption.

Because TI-Pro® Protective Boards are reusable, any remaining sheets can normally be stored and used on future projects, making them a cost-effective investment for regular contractors.

How Do You Install Correx or TI-Pro® Protective Boards Correctly?

Correct installation helps maximise protection and reduces movement during the project.

A typical installation process is:

Sweep and clean the floor.
Lay boards tightly together.
Trim boards neatly around walls and obstacles.
Secure joints using low-tack protection tape.
Inspect regularly and replace damaged sections where necessary.

For a typical 150m² property, contractors generally allow 8–12 rolls of low-tack tape, depending on the number of joints and room layout.

Properly installed protection boards help reduce accidental damage, minimise snagging at handover and maintain a cleaner working environment throughout the build.

How Do You Get Started with TI-Pro® Protective Boards?

If you're planning a refurbishment, decorating project or new-build fit-out, calculating the correct quantity before work starts will save both time and money.

A simple checklist:

Measure the total floor area.
Allow extra boards for cutting and staircases.
Choose the appropriate board thickness.
Order matching low-tack tape.
Arrange delivery before work begins.

You can order TI-Pro® Protective Boards directly from Trades International with free next working day delivery across most of the UK.

👉 View TI-Pro® Protective Boards here:

Frequently Asked Questions About Correx and TI-Pro® Protective Boards

How many Correx sheets cover 150m²?

Most contractors order 55–60 sheets, allowing for cutting, overlaps and site conditions.

Can TI-Pro® Protective Boards be reused?

Yes. Provided the boards haven't been significantly damaged, they can often be reused across multiple projects.

Is Correx waterproof?

Yes. Correx and TI-Pro® Protective Boards are waterproof, making them suitable for protecting finished surfaces during construction and refurbishment work.

Which thickness is best for builders?

For most residential building projects, 3mm or 4mm protection boards provide the best balance of durability and value.

Ready to Protect Your Next Project?

Whether you're fitting kitchens, laying flooring, decorating a home or managing a full refurbishment, choosing the right temporary floor protection helps prevent costly damage and keeps projects moving efficiently.

Your next step:

Decorators: Choose lightweight 2mm boards for paint protection and easy handling.
Flooring installers: Select durable boards that protect finished floors during second-fix works.
Kitchen fitters: Use thicker boards to protect completed flooring while heavy appliances are installed.
General builders: Order enough boards to cover the full property and keep spare sheets available as work progresses.

Trades International supplies professional-grade TI-Pro® Protective Boards with free next working day delivery, helping you get the protection you need exactly when your project needs it. Ready for quality protective product at trades prices? Visit our catalogue.