How to Calculate Resin Needed Per Room

The Basic Calculation

To work out how much resin you’ll need, start by measuring your room’s floor area (length x width in metres). Decide your desired resin layer thickness, then multiply this by your floor area to get the total volume required. For example, a 16 m² room coated to 2mm thickness would require 16 x 0.002 = 0.032 cubic metres (32 litres).

Always check the specific coverage information provided with each resin product, as some formulas may spread further or require thicker application for optimal results.

Product Coverage & Choosing the Right Resin

Each resin type has recommended coverage, depending on its formulation and use. For permeable floors, kits like the Flowstone system include both aggregate and resin, with guidance for area and thickness on the product page. For artistic or multipurpose resin projects, such as countertops or coloured stone features, coverage per kit is typically stated in square metres at a set thickness—always review these guidelines to avoid running short.

• Double-check the mixing ratio, especially for resin and aggregate blends, as this affects total material required.
• Account for surface irregularities or porous materials, which may increase consumption slightly.

Adding a Safety Margin

It’s sensible to add an extra 5–10% to your calculated amount as a buffer. Small errors in measurement, spillage, or surface texture can all lead to slightly higher usage than planned. Having additional resin on hand ensures you can complete your floor without last-minute delays.