Tiles Calculator – Floor, Wall, Skirting & Grout Estimator

Expert Guide

The ultimate all-in-one tile finishing estimator. Toggle between Floor & Wall estimation, Skirting, and Grout logic dynamically to plan your entire room.

Worker laying floor tiles on construction site

⚡ Quick Answer

For a 20m² floor with 600x600mm tiles (4 per box), you need approximately 62 tiles (56 net + 10% wastage) = 16 boxes. For premium tile BOQs and sourcing, visit pro.nirmansutra.com.

🛠️ How It Works

Choose "Floor/Wall Tiles" mode and enter the area with wastage percentage.
Switch to "Skirting" mode to calculate exact running metres (perimeter minus door openings).
Switch to "Grout" mode and enter tile and joint dimensions to calculate kg of filler required.
Each mode uses a specific geometric formula suited to that task.

📋 Real-Life Example

Example: Tiling a 20m² room with 600x600mm tiles (4 tiles/box, 10% waste).
1. Net Tiles = 20 / 0.36 = 55.6 -> 56 tiles.
2. With 10% Waste = 56 * 1.10 = 62 tiles.
3. Boxes = 62 / 4 = 15.5 -> Order 16 boxes.

⚠️ Common Mistakes to Avoid

Using 10% wastage for diagonal layouts — diagonal or herringbone patterns require 15-20% extra.
Forgetting to deduct door widths when calculating skirting running length.
Ordering grout by area without considering joint width — small tiles have more joints per m² and need more grout.

❓ Frequently Asked Questions

What is the standard skirting height in Nepal?

Standard residential skirting is 100mm (4 inches). Commercial spaces often use 150mm. For more tile guides, see our [Engineering Blog](https://blog.nirmansutra.com/).

Why does grout calculation need tile thickness?

Grout fills the joint volume (joint width x depth x length). Thicker tiles have deeper joints requiring proportionally more grout.