Calculation of the quantity of tiles

Calculating the amount of tiles needed for a floor or wall can be done simply by following the steps below. Let's consider a generic example and use metric units.

Step by Step Calculation

1. Determine the total area to be covered (A):
   Multiply the length by the width of the area to be coated.

_Total = Length (m) × Width (m)

 

2.     Calculate the area of ​​a tile (A ₜ ):
Multiply the length by the width of a tile.

The _tile = Length (m) × Width (m)

 

3.     Determine the required quantity without losses (Q):
Divide the total area by the area of ​​one tile.

4.     Include the loss margin:
Add a margin for waste (usually 5% to 10%, depending on the type of work and cuts required).

 

Practical Example:

1. Total area to be coated (A):
   Length = 5 m, Width = 4 m.

_Total = Length (m) × Width (m)

_Total = 5.0 × 4.0 = 20 m ²

 

2. Area of ​​a tile (A ₜ ):
   Length = 0.6 m, Width = 0.3 m.

The _tile = Length (m) × Width (m)

The _tile​ = 0.6 × 0.3 = 0.18 m ²

 

3. Lossless Quantity (Q):

 

4. Including 10% losses:

 

Final Answer: Buy 123 tiles to ensure you have enough, considering losses.

 

ADDITIONAL TIPS

• Always round up: Even with the margin of loss, round up to the nearest whole number.
• Consider cutouts: For areas with a lot of cutouts, you may need to increase the waste margin to 15%.

This way, you will have an accurate estimate and avoid running out of material.

Author: Eng. Francisco Quisele Jr.

Date of publication : 11/21/24