 # Square meters calculate wall

## We will show you how to quickly and easily calculate different wall shapes yourself

Difficulty: Easy | Costs: approx. 0 euros | Workload: approx. 10 minutes

In this article we will show you how to calculate the wall area of ​​a room precisely.

We will go into various aspects, such as taking windows and doors into account, as well as the right approach to sloping ceilings and angled rooms.

With our detailed steps and useful tips you can determine the optimal surface for the room design. ## Step 1: The Basics of Wall Area Calculation

### Rectangular rooms

For rectangular rooms, calculating the wall area is very simple.

Calculate:

You multiply the height of the wall by its length to get the area. Do this calculation for all four walls and add the results to get the total area of ​​all the walls in the room.

Note: length x width = area of ​​a wall

### Rooms with sloping ceilings

For rooms with sloping ceilings, the calculation is a bit more complex. Here you first have to calculate the area of ​​the triangle created by the slope.

Calculate:

To do this, multiply the base of the triangle (i.e. the width of the wall) by the height of the triangle and divide the result by 2. Do this calculation for both slopes and add the results to get the total area of ​​the roof slopes.

## Step 2: Consider windows and doors

To find the actual wall area, you need to subtract the areas of windows and doors.

To do this, you measure the height and width of the respective openings and multiply them together to get the area. Then add the areas of all openings and subtract them from the total area of ​​the walls.

## Step 3: winding rooms and niches

For angled rooms or rooms with alcoves, you need to calculate the area of ​​each wall separately.

Here it can be helpful to divide the space into different, simpler geometric shapes and to calculate the areas of these shapes individually. You then add up the areas of all sub-areas to determine the total area of ​​the room.

## Step 4: Calculate the materials and costs required

After you have calculated the actual wall area, you can now estimate the materials and costs required for your project.

Here you should the consumption of

• Color
• wallpaper or
• tiles

per square meter to determine the required amount.

Our tip: Also think about any waste and plan a certain buffer to cover unforeseen circumstances.

## Step 5: Plan and carry out work

With the exact knowledge of the wall surface, you can now plan and carry out your project better.

Organize the materials and tools you need, break the work down into meaningful steps, and make sure you plan enough time for the different work phases.

## Summary and conclusion

The precise calculation of the wall area is essential in order to achieve an optimal result when designing the room.

With precise knowledge of the area, you can better estimate the required materials and costs and plan and carry out your project efficiently.

Follow our step-by-step instructions and pay attention to the special features of your room in order to determine the wall area correctly.

## Step 1: The Basics of Wall Area Calculation

### Rectangular rooms

For rectangular rooms, calculating the wall area is very simple.

Calculate:

You multiply the height of the wall by its length to get the area. Do this calculation for all four walls and add the results to get the total area of ​​all the walls in the room.

Note: length x width = area of ​​a wall

### Rooms with sloping ceilings

For rooms with sloping ceilings, the calculation is a bit more complex. Here you first have to calculate the area of ​​the triangle created by the slope.

Calculate:

To do this, multiply the base of the triangle (i.e. the width of the wall) by the height of the triangle and divide the result by 2. Do this calculation for both slopes and add the results to get the total area of ​​the roof slopes.

## Step 2: Consider windows and doors

To find the actual wall area, you need to subtract the areas of windows and doors.

To do this, you measure the height and width of the respective openings and multiply them together to get the area. Then add the areas of all openings and subtract them from the total area of ​​the walls.

## Step 3: winding rooms and niches

For angled rooms or rooms with alcoves, you need to calculate the area of ​​each wall separately.

Here it can be helpful to divide the space into different, simpler geometric shapes and to calculate the areas of these shapes individually. You then add up the areas of all sub-areas to determine the total area of ​​the room.

## Step 4: Calculate the materials and costs required

After you have calculated the actual wall area, you can now estimate the materials and costs required for your project.

Here you should the consumption of

• Color
• wallpaper or
• tiles

per square meter to determine the required amount.

Our tip: Also think about any waste and plan a certain buffer to cover unforeseen circumstances.

## Step 5: Plan and carry out work

With the exact knowledge of the wall surface, you can now plan and carry out your project better.

Organize the materials and tools you need, break the work down into meaningful steps, and make sure you plan enough time for the different work phases.

## Summary and conclusion

The precise calculation of the wall area is essential in order to achieve an optimal result when designing the room.

With precise knowledge of the area, you can better estimate the required materials and costs and plan and carry out your project efficiently.

Follow our step-by-step instructions and pay attention to the special features of your room in order to determine the wall area correctly.

## Tips and tricks for a precise wall area calculation

### Tip 1: Use a laser range finder

A laser range finder can help you take precise measurements of wall lengths and heights.

These devices are easy to use and provide very accurate results.

### Tip 2: Document your measurements

Write down all measurements and calculations to keep track of the different areas and amounts of material.

### Tip 3: Note the texture of the wall

The nature of the walls can have an impact on the consumption of materials.

Note: Rough or uneven walls may require more paint or wallpaper paste than smooth walls, for example. Take this into account when calculating the required material quantities.

### Tip 4: Consider the room height

In rooms with an unusual ceiling height, such as very high ceilings or sloping walls, you should take the ceiling height into account when calculating the wall area. This can help you get a more accurate estimate of the materials and costs needed.