Calculating the plaster required for a wall can be a challenging task. Plaster comes in two varieties: too little means you’ll need to buy more, and too much means you’ll waste money and materials.

Luckily, this procedure can be made simpler with a plaster calculator. You can save time and hassle during your project by quickly determining how much plaster is required by inputting the dimensions of your wall.

This tool lowers waste, increases accuracy, and helps you stay within your project’s budget. Utilizing a wall plaster calculator to determine the area of a wall repair or major renovation is a wise move when organizing your project.

Wall Area (sq. meters) | Plaster Needed (kg) |

10 | 120 |

20 | 240 |

30 | 360 |

40 | 480 |

50 | 600 |

- Plaster calculator
- An example of calculating plaster per m2 on a calculator
- Types of leveling plasters
- Surface parameters
- What affects the consumption of plaster
- Video on the topic
- How to calculate the area of walls for further plastering
- Calculation of plaster consumption per wall. Online calculator
- calculator of the area of the walls of the house
- How to calculate the consumption of putty
- A simple way to calculate plaster per wall
- How to calculate plaster consumption.

## Plaster calculator

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One easy tool to help you estimate how much plaster you’ll need for your project is a wall plaster calculator by area. You can save time and cut down on waste by entering the dimensions of your walls into the calculator, which will quickly determine how much plaster is needed. For professionals as well as do-it-yourselfers, it’s a vital tool that guarantees you get the right amount of material without requiring any guesswork.

## An example of calculating plaster per m2 on a calculator

You can use the online calculator for plaster consumption per 1 m2 to calculate how much plaster mix is needed. You must fill in the required information in its windows in order to accomplish this.

For instance, we have a 5 x 3 m rectangular room with one window and one doorway that needs its walls plastered. The room is 2.6 meters high.

- The craftsmen advised the neighbor to use gypsum plaster, so we buy it for ourselves. Or we did not trust the neighbor"s team and studied the material ourselves.
- The perimeter of the walls of the room is 16 m.
- There is 1 standard door in the room.
- The window has dimensions of 1.5×1.4 m, not very different from that indicated in the example.

For reference, you can compute the area as two windows if the dimensions of your window opening are noticeably larger than those shown in the calculator. Alternately, leave one, and the difference will account for the slopes’ area.

For instance, the area of the opening 1.4×1.3 is 1.82 sq. m. The size of your opening is 1.8 x 1.5 m, and the slopes are 20 cm wide. 2.7 square meters is the total area of your opening; 0.96 square meters is the area of slopes (the window is 1.5 meters high). We must deduct 2.7-0.96=1.74 sq.m. from the wall’s area, which is less than the calculator’s opening.

- Average calculated layer thickness is 17 mm.

Press "Calculate." The application notifies that 581.4 kg of plaster mix must be purchased. It is necessary to order 610 kg of material and add a 5% reserve to this value.

You can determine how many bags are needed if you are aware of the plaster mix’s packaging. For instance, 30 kg bags of the plaster used in the computation are available for purchase. Nineteen bags are required for leveling, as we discover when we enter this value in the relevant field.

## Types of leveling plasters

Typically, plasters used to level walls based on composition are separated into:

- Gypsum;
- Cement (cement-sand);
- Cement-lime;
- Clay.

The operating environment and financial constraints will determine the composition to be used.

In dry rooms, gypsum plasters are utilized. Bathroom applications are unsuitable for facade work because gypsum absorbs moisture from the air. Gypsum plasters are more expensive than mixtures made of cement. Gypsum mixtures can be glossed, are flexible, and require little application skill, which eliminates the need for additional wallpaper preparation. They expedite work by drying quickly, but they also restrict the amount of mixture that can be mixed at once (the prepared volume must be used within 40 minutes). Hydrophobic additives are included in gypsum plasters for wet rooms, and it is these compositions that are used to level bathroom ceilings.

Cement based on plasters Although ready-made dry mixtures are also sold, they are frequently made independently on a construction site in order to save money. possesses stronger qualities and a higher density than gypsum. used in damp rooms, utility rooms without heat, and facade work. Lime is added to cement-sand mixtures to create cement-lime, which is used to level the walls in bathrooms and other damp areas. Because cement plasters dry more slowly and require putty to level the surface before painting or applying wallpaper, you can prepare larger areas at once, but the intervals between layers will get longer.

Clay plasters work well in both dry and wet environments, both indoors and out. These compositions are more frequently used on fireplaces and chimneys because of the elasticity of clay, which enables the compositions to maintain their properties under extreme heat or cold. The combination is perfect for leveling wooden walls because of its capacity to take in moisture and then release it.

## Surface parameters

The average thickness of the leveling layer multiplied by the area of application yields the plaster’s volume.

The average thickness is calculated with a level and/or beacons. We divide the wall into 1.5-meter-long segments along its length. We measure the distances between the wall surface and the plumb line at three points (top, middle, and bottom; for large rooms, points are selected in increments of 1.5 meters) after setting the level vertically tangent to the point that protrudes the most.

Similar to beacons, the algorithm works by attaching the beacons to the plaster mortar and submerging them vertically until they make contact with the wall. At that point, comparable measurements are taken. It is also possible to set the beacons themselves with a laser level, a conventional level, or a combination of the two. By adding up the values and dividing by the total number of control points, we can calculate the arithmetic mean value of the leveling layer thickness for every wall.

This method of calculating the average thickness value works well with walls that are generally smooth. In order to level an uneven surface, you will need to determine the plaster layer’s thickness. You will need:

- For brickwork, it depends on the depth of the seams and their number (area) per square meter;
- For timber walls, you need to determine the average distance from the surface of the logs to the outer edge of the shingles, on which the beacons will be installed;
- For very damaged surfaces with a large number of chips and fallen fragments of old plaster, you need to determine the volume required to fill these defects.

Since every one of the aforementioned scenarios is different, there is no precise algorithm for determining these values. It is possible to ascertain the average thickness and the approximate percentage of the area that needs more filling.

If you intend to use plaster to level the slopes in a room with a lot of openings, you can increase the final material requirement by roughly a percentage of the area of the walls.

## What affects the consumption of plaster

As previously mentioned, the curvature and material of the walls have the biggest effects on consumption. The mixture’s composition also has an impact; the higher the consumption, the higher the filler fraction. The plaster’s consistency is also influenced by the application technique; a higher water content makes the plaster more pliable and fills in surface irregularities, which can somewhat lower consumption.

Calculating wall plaster by area is made easier, faster, and less likely to go wrong when you use a calculator. You can quickly ascertain how much plaster is required by entering precise measurements, allowing you to buy the appropriate amount without wasting any.

Professionals and do-it-yourselfers will find this tool especially helpful as it makes project planning more efficient. Plastering goes more smoothly when the precise amount needed is known, as it facilitates better budgeting and scheduling.

Using a plaster calculator can be very beneficial when working on a large construction project, no matter how small the room is. It expedites the preparatory process, avoids material shortages, and ultimately enhances the success and economy of the plastering job.

## Video on the topic

### How to calculate the area of walls for further plastering

### Calculation of plaster consumption per wall. Online calculator

### calculator of the area of the walls of the house

### How to calculate the consumption of putty

### A simple way to calculate plaster per wall

### How to calculate plaster consumption.

**What type of plaster do you prefer to use in your projects?**