How to calculate siding and components for cladding a house: Tips + Photos and Videos

How to calculate siding and components for cladding a house: Tips + Photos and Videos The exterior of the building is what we first of all pay attention to. Aesthetics and attractiveness, harmonious combination of style and finishing materials, one of the keys to successful construction.

For wall cladding at home, very often use an inexpensive but high-quality material - siding. This makes it possible to make your home beautiful without much labor and cost.

Calculation of siding is a necessary and quite feasible task for many of those who have been building a house on their own.

The amount of siding required is calculated in order not to spend extra money if it turns out to be too much, and there is nowhere to put it.

General information about siding


Let's try to figure out for a start, what is siding? The name of the material is a transliteration of a special type of facing material, which is wall panels for decorating the walls of buildings. These panels are narrow; they are attached to the surface at an angle using special fasteners. The functions of siding are to protect against the negative effects of the external environment, as well as aesthetic - decorating the house from the outside.

In the old days, siding was made mainly from wood.

For this, the boards were planed and painted in certain colors. Nowadays, the choice of materials for siding is very rich, and each has its own advantages.


Type of material Specifications
Wood By type of material processing:
  • impregnated with antiseptic agents;
  • processed under the influence of high temperatures + 170 ° C + 220 ° C with a high level of humidity;
  • dried siding (the final result is a humidity level of 16 - 18%).

By section type:

  • Overlapped;
  • With snug fit;
  • Groove-comb;
  • At a quarter.
Glued lining or wood paneling Made of wood fiber, using high temperature and resin additives, the material is pressed and coated varnish and paint products.

Outwardly it resembles natural wood. Can be used for external and internal wall cladding. The service life is at least 15 years.

Metal Used mainly for cladding industrial buildings. It is made of aluminum, which is then coated with anti-rust agents.

Cement + cellulose fibers The material is resistant to fire, but due to the high price, it is rarely used.
Vinyl The material is suitable for cladding any buildings, characterized by versatility and high quality. Outwardly it resembles a wooden board, but it is more reliable and durable. The service life reaches 20 years or more.It is not exposed to the external environment, mechanical damage, does not exfoliate, does not crack, does not form scratches on it, does not need special care.

In addition, vinyl siding has a high level of environmental friendliness, does not emit toxic substances, and does not conduct electric current. the panels are made with special holes that allow the house to "breathe". It is easy to install and lightweight. The service life is 50 years.

For wall cladding with siding, you will also need fasteners and a profile.

The calculation of profiles for siding must also be carried out without fail.

Profile types Specifications
Wall panel Ordinary siding used for facing the walls of the house. Mount type - horizontal.
Starting profile It is mounted on the lower sheathing level and acts as a guide for the initial row of siding installation. Fastening takes place using a special connecting lock.

Starting bar Its task is the same as that of the starting profile, but it is mounted in the rear below the profile level, and has low strength.
H-profile Used to join two siding strips together. It is mounted vertically, used as a spacer.
Finishing profile Installed in the last row of siding.
Drain bar Installed above the protruding elements on the walls, above the base.

Serves as a rainwater drain.

Interior Corner Profile Hides siding joints inside building corners.
Profile for outer corners Hides panel joints from the outside, performs a decorative function.
Wide J-profile Mined at the joints, performs a decorative function. Often used as window trims.

Wind board Used for facing the cornice from the ends, fixes the soffits.
Slope profile It is used for decoration of openings of windows and doors.
J-profile Universal profile, which is used for siding decoration, lighting installation, facing the corners of the house from the inside.

Method of calculations


In practice, 3 methods are used calculating siding for house cladding: mathematical, graphic, online calculator for calculating siding and accessories.

Mathematical method

Provides for the use of a special formula for calculating siding, which will help to accurately determine how much material will be sufficient for facing the entire building.

Also, it is important to take into account the fact that you need to make a small margin - about 7%, multiplying the result by 1.07.


This method of calculating the amount of siding per house is more time consuming, but due to this it is the most accurate of all. Before starting the calculation process, you need to make a drawing of the house, taking into account the area, all the necessary data and dimensions. Next, you need to take a sheet of paper and cut it into strips that will match the scale of the siding panels.

Then, your task will be to fill the walls of the drawn building with these strips. At the end of the work done, you should count the strips used. Thus, you will receive the exact quantity when calculating the siding and components required for the building cladding.

Important !

For those who do not want to mess with the drawings on their own and cut strips, there are special graphic editor programs that are available on the Internet ..


When calculating vinyl siding, remember to keep in mind that the material has a usable and working width. Each plank is made with perforations, which are hidden under each subsequent plank. Due to this, the full width of the siding cannot be used for calculations. It is necessary to take into account only the part of the bar that will be visible.

The correctness of calculating the decoration of the house with siding directly depends on the knowledge of the total area of ​​the walls of the house, the width and length of the material used. The initial carrying out of the battens before installing the siding will give you the opportunity to make accurate calculations, since you will know its basic dimensions.


Formula for calculating the area of ​​finishing

S finishing = L walls x H walls

How to calculate siding and components for cladding a house: Tips + Photos and Videos The calculation of parametric data is performed for each individual wall. The results are summed up and a single value is determined. To get accurate indicators, you need to subtract the area of ​​all openings of doors and windows from the area of ​​the total cladding.

Formula for calculating the area of ​​the planks

Next, it was time to calculate the area of ​​the siding strips.

S panels = B panels x L panels

Formula for calculating the number of siding strips

Number of planks = S finishes / S panels

The calculation process for gable siding is the same as for walls. The difference is that when calculating the area of ​​the walls of a building, you must use a formula to calculate the area of ​​a triangle.

In order to protect yourself from the situation when the material is suddenly not enough during the work process, when calculating, provide a margin for any fire case. Basically, you need to buy material with a margin of about 15% of the total siding calculations.