Nowadays, tiles is used in almost all residential buildings.

In a building, tiles are used almost everywhere – stair, lobby, apartment, roof, etc.

In this post, I’ll share how to calculate tiles needed for a floor of a room in an apartment.

In an apartment, there are many types of room. Such as **bedroom**, **kitchen room**, **bathroom**, **living room**, etc.

Floor tiles are normally used in everywhere. But wall tiles are mostly used bath and kitchen. In the bed and other rooms, wall tiles are rarely used.

So, calculating tiles for bedroom and bathroom aren’t same.

I’ll discuss how to calculate tiles needed for a floor of a room where wall tiles aren’t used.

## Considering Things During Calculating Tiles

While calculating floor tiles you actually need to consider **three things**.

**If there is any special design on the floor:** Sometimes, a special tiles design is used on a floor. You need to calculate the design tiles separately and deduct the tiles quantity from the floor tiles quantity.

**If there is any skirting:** Skirting is a strip of tiles which is laid in walls adjacent to the floor.

It is normally kept four inches in height. But sometimes more. You need to check the height of skirting.

If there are any wall tiles, there won’t be any skirting.

**Check the same tiles is used everywhere:** In an apartment, different tiles may use for different rooms. While calculating the floor tiles quantity, you need to calculate them separately. So, check the tiles code used in different rooms.

## How To Calculate Tiles Needed For A Floor

The basic of calculating floor tiles is to get the area of tiling floor.

You just need to get the dimension of **two opposite direction** and multiply them.

If we see the thing in the mathematical term,

Quantity of floor tiles is,

= **length × width**

But a floor can be different shaped. Such *circular*, *trapezoidal*, etc.

Whatever the shape is, no matter, our ultimate purpose is to get the area of the floor.

### 2 Methods To Calculate Tiles Needed For A Floor

You already get the basic idea of **calculating tiles** from the above discussion.

Depending on the situation, I normally use **two different methods** to calculate tiles in my building construction projects. Those are,

- Average method
- Counting method

#### 1. Average Method:

Don’t go over the name of this method. I just named this to make the thing understandable.

When we’re in a tight schedule and have a lot of other things to do in the project, we apply this method.

In this method, You need to do **three things** to calculate tiles needed for the floor – **Get the area of the floor**, **get the skirting area** and **add wastage**.

**Get The Area Of The Floor: **Either from drawing or by measuring practically, you can get the total floor area you’re going to tile on.

At the end of this post, I’ll show you how to get area of different shapes.

**Get The Skirting Area: **First, get the total length of the skirting and multiply the length with the height of the skirting.

And then add the area of skirting with the floor area.

**Add Wastage: **There is no thumb rule for how much tiles you will add for wastage. There are some considering things for calculating tiles wastage.

If you need too many cut piece tiles for the floor, you have to add more wastages.

Another thing to consider is, tiles are more often market out. The tiles you are using on the floor may not found in the future. So, it is better to keep some extra tiles for future repairing work.

And obviously, some tiles will be wasted during carrying, transporting and working.

Considering all these things, I found that **10% extra** is a good figure to add with the actual tiles quantity.

So, the total floor tiles you need to purchase is,

= **Floor tiles area + Skirting area + 10% extra**

#### 2. Counting Method

This method is little bit complicated. If you have time, this method is better.

In this method, you need to make a **shop drawing** in AutoCAD. If you have a soft copy of the floor plan, it will be easy to prepare the **shop drawing**.

To calculate tile in this method, you first need to know the size of the tile you’re going to use on the floor.

Just open the floor plan in AutoCAD and draw lines on the plan. Imagine that you’re placing tiles on the floor. You are tilling a floor on a computer.

After preparing the shop drawing in AutoCAD, take a print out of the drawing.

You can now count how many tiles you’ll need for the floor from the drawing. You can also count the required number of tiles for skirting.

After getting the total number of tiles, multiply the number of the tile with the size of a tile to get the quantity.

That’s simple.

In this method, you don’t need to add wastage. However, if you want to keep some tiles for future repairing purpose, you can add **3% wastage**.

Actually, I found that adding **3%** wastage is practical. Because some tiles are broken during working.

So, the floor tiles quantity will be,

= **(Number of tiles x Size of tiles) + 3% wastage.**

## How To Get Area Of Different Shapes For Calculating Tiles Needed For A Floor?

As I discussed above, calculating tiles is just getting the area of the tiling floor. For this, you need to know how to get the area of different shapes.

**Area –**

- For square floor = 2× length.
- For rectangular floor = Length × Width.
- For a circular floor = πr2 (π=3.14, r=radius).
- For a trapezium shaped floor= = {(a+b)÷2} × h (a=longer base, b=shorter base, h=height).

**Conclusion**

Calculating tiles for a floor is easy. You just need to make sure that you’ll use the same tiles for all the floor. If your floor contains some other types of tile, you need to calculate them separately.

First, get the area of the floor and then, the area of the skirting tiles for the floor. Before purchasing the tiles you also need to add the wastage quantity with the calculated tiles quantity.

*Share Your Expertise*

*What method do you use to calculate the tiles needed for a floor? Do you want to share any tips? Please share in the comments below…*

Sharon Rausch says

22/04/2019 at 1:55 pmThank you so much for sharing your helpful information. It’s very unique post

Liton Biswas says

23/04/2019 at 8:07 amYou’re welcome, Sharon. I’m glad it helped.