How do I calculate resin needed for 50m²?

Step-by-Step Resin Calculation

The fundamental formula is: Area × Layer Thickness = Volume. For 50m², decide your target thickness (in metres). For example, a standard depth for pebble floors is 2cm (0.02m). Multiply 50 × 0.02 = 1m³. Since 1m³ equals 1,000 litres, you’re working with a total volume of 1,000 litres.

For floors made with pebbles or grits, you typically do not use pure resin. The resin is mixed with aggregates, so you’ll need only a portion of the calculated gross volume as actual resin. Most resin-to-aggregate mixes use 7–12% resin by weight, but always follow your product’s recommendations for best results.

Choosing the Right Resin and Kit

Use the resin that best suits your chosen aggregate and finish. For coloured pebbles or grits, a transparent, UV-stable epoxy binder such as “Trasparente” Epoxy Binder is popular. For a turnkey solution with correct quantities and clear instructions, select a dedicated kit like the Flowstone Complete Permeable Floor Kit—all components are sized for surface area and thickness, making estimation simple.

When Resin Calculation Matters

• Accurate calculation minimises costly waste or project delays from under-ordering.
• Layer thickness affects not just appearance but surface longevity and permeability.
• If working outdoors or for driveways, check if your chosen kit includes guidance for higher loads or water drainage performance.