Ardex Levelling Compound Coverage Guide
Posted by Yasmin Ilarionos on 23rd Jul 2026
Ardex Levelling Compound Coverage Guide
Choosing the correct amount of levelling compound is an important part of any flooring installation. Ordering too little can delay your project, while ordering too much can lead to unnecessary waste. Understanding the approximate coverage of each Ardex product helps you estimate how much material you'll need before work begins.
Coverage will always depend on the thickness of the application, the condition of the subfloor and the product being used. As a general rule, the rougher or more uneven the surface, the more material will be required.
Below is a quick guide to the Ardex levelling compounds available at Floormart.
Ardex Levelling Compound Coverage
|
Product |
Approximate Coverage |
Best For |
|
Approx. 5m² at 3mm per unit |
Refurbishment and uneven subfloors |
|
|
Approx. 5m² at 2-3mm per unit |
General floor levelling |
|
|
Approx. 4.1m² at 3mm per unit |
Fast-track floor preparation |
|
|
Approx. 4m² at 3mm per bag |
High-build commercial levelling |
|
|
Approx. 5m² at 3mm per bag |
High-flow smoothing and levelling |
|
|
Approx. 7.8m² at 2mm per bag |
Exterior concrete resurfacing |
|
|
Approx. 50m² at feather edge per bag |
Feather edging and minor repairs |
|
|
Approx. 7m² at 1mm per bag |
Internal concrete repairs |
|
|
Approx. 4m² at 2mm per bag |
Repairing steps, ramps and damaged concrete |
What Affects Coverage?
While manufacturer coverage figures provide a useful guide, several factors can affect how much levelling compound you'll actually use.
Application thickness is the biggest factor. A floor requiring a 6mm application will use roughly twice as much material as one requiring 3mm.
The condition of the subfloor also plays an important role. Cracked, uneven or damaged surfaces often require additional product to achieve a smooth finish.
Finally, wastage should always be considered. Mixing losses, uneven pouring and difficult areas around doorways or corners can all increase material usage, so it's good practice to allow a little extra when ordering.
Choosing the Right Ardex Product
Coverage is only one part of selecting the correct levelling compound. You'll also need to consider the type of project you're working on.
- ARDITEX NA is ideal for refurbishment projects and many existing subfloors.
- ARDEX K 40 HB is designed for thicker applications and demanding commercial environments.
- ARDITEX CL and CL Plus are excellent all-round choices for general floor preparation.
- ARDEX A 45 and A 46 are repair mortars, making them ideal for repairing damaged concrete before levelling begins.
Final Thoughts
Using the correct amount of levelling compound helps keep your project on schedule and reduces unnecessary waste. The coverage figures above are intended as a guide and may vary depending on site conditions, application depth and substrate type.
For the most accurate coverage information, always refer to the latest Ardex technical data sheet or speak to the Floormart team. We'll be happy to help you choose the right Ardex product and estimate the quantity needed for your next flooring project.
