Grout Volume Calculation Formula

\[ R = \frac{l \times w}{(l + g) \times (w + g)} \]

\[ \text{grout area} = A_{\text{surface}} - A_{\text{surface}} \times R \]

\[ \text{grout volume} = \text{grout area} \times \text{gap depth} \]

Where:

• \( l \) = Length of the tiles to be installed
• \( w \) = Width of the tiles to be installed
• \( g \) = Gap width or the tile spacing that needs grouting
• \( A_{\text{surface}} \) = Total area of the tiling project
• \( \text{grout area} \) = Total area that needs grouting
• \( \text{gap depth} \) = Depth of the gap