The popularity of using lining is increasing every day. And there are good reasons for this:
- lining is a universal material that is suitable for finishing both external and internal walls;
- the cost makes it accessible to the general public;
- The wide range of materials used in production allows it to be used in a wide variety of design projects.
But no matter what lining is chosen, errors in calculating the required amount of material can not only disrupt the current repair process, but also significantly change the expected finishing result.
Wood selection
Today, the construction market is filled with a variety of options for finishing materials, so for a beginner in repair and construction, choosing lining can be a serious challenge.
The main thing that a buyer must go to the market with is the concept of the exact value of the required amount of material. This approach will help prevent some uncomfortable situations. After all, buying extra materials leads not only to a loss of money, but also time for its possible return.
Important! When choosing wooden lining, special attention should be paid to the type of wood from which it is made. The most common options are deciduous and coniferous wood.
Let's look at the types of trees most commonly used in lining production:
- Pine. It is distinguished by high strength indicators, which attracts consumers. However, you need to know that pine lining quickly loses its original color if it is not treated with protective varnish or stain.
- Oak. The beautiful structure of the wood, which practically does not rot, makes this lining a leader in the ranking of the popularity of finishing materials. Its only drawback is the high price, which is not affordable for everyone.
- Ash. It is not used very often because processing such wood is quite labor-intensive and costly. But at the same time, ash wood is very durable and does not change its structure and shape when dried.
- Linden is an ideal option for arranging steam rooms in a bathhouse or sauna. It retains heat perfectly without emitting resin oils that are harmful to human health.
Calculator for calculating lining for walls by area
Lining is a universal material for covering walls outside and inside a building. The material is made from natural wood, has low cost and attractive appearance.
Below is a calculator for calculating lining for wall cladding and home decoration. With its help, you can carry out all computational operations online.
[CP_CALCULATED_FIELDS id=”27"]
To operate the calculator, a formula was used based on the sheathed area and the area of the lining itself. To get the result you need to enter data about the surface and board parameters.
If all four walls are sheathed, then you need to fill in the fields: length, width, height. If there are windows and doorways, their number is selected. Next, enter their parameters in the drop-down field.
We made several drop-down fields so that you can set parameters for openings of different sizes. For identical openings, it is enough to duplicate the values.
| Size, mm | Area, m2 | volume, m3 | In m3, pcs. |
| 12x120x2000 | 0,24 | 0,0028 | 357 |
| 15x120x2000 | 0,24 | 0,0036 | 277 |
| 20x120x2000 | 0,24 | 0,0048 | 208 |
| 12x120x3000 | 0,36 | 0,0043 | 232 |
| 15x120x3000 | 0,36 | 0,0054 | 185 |
| 20x120x3000 | 0,36 | 0,00723 | 138 |
| 12x120x6000 | 0,72 | 0,0086 | 116 |
| 15x120x6000 | 0,72 | 0,011 | 90 |
| 20x120x6000 | 0,72 | 0,014 | 71 |
Afterwards, you need to select the board parameters from the proposed options. The calculator already contains the length and width of the board for regular lining. For eurolining, you need to select “Custom sizes” and manually enter the dimensions you need.
As a result, the online calculator will quickly calculate and display the working area, which is the sum of the difference between the total area and the area of the openings. In the “Wood panel consumption” field, the minimum number of boards in pieces will be indicated.
To the obtained value we recommend adding 10-15% of the material that will be used for trimming or scrap. If the calculations did not take into account the area of various openings, niches, doors, gates, then their parameters can be taken into account as an extra charge.
Main dimensions and parameters
The lining is sold in cubic meters, square meters and packages. It all depends on the selling party and volumes. In some construction stores, due to small sales volumes, they may be sold in pieces.
The calculator for calculating the amount of lining gives the result in pieces. To convert these values into cubic meters, use the table located under the calculator. Additionally, the area of one board is indicated for manual calculations.
The standard formula for calculating the number of boards per cubic meter: 1 m3 / (L*H*B) = N pieces, where L is length, H is height, B is width.
The length of the board for wall cladding varies from 2 to 6 meters
For example, let's take a 15x120x3000 lining. The size is indicated in millimeters, so we substitute the parameters in meters into the formula. You need to calculate the number of boards in one cubic meter. 1 m3 / (3*0.015*0.12) = 185 pieces.
The length and width of the lining is regulated by GOST 8242-88, but some sawmills make boards taking into account only two parameters. Basically this only applies to thickness and length.
The standard dimensions of the lining are as follows:
- length – no more than 6 m;
- width – no more than 15 cm;
- thickness – from 12 to 25 mm.
Eurolining has a length of no more than 4 m, width from 8 to 12 cm, thickness up to 15 mm. Other types of lining can have excellent dimensions in all three respects.
For the calculation, size does not play a special role. The calculation calculator allows you to enter any data for the edged board. The output will be an approximate result with a minimum error.
How to calculate without a calculator
In addition to special programs, the calculation can be done manually. This is especially important when you need to estimate the amount of material at the work site. Simple arithmetic formulas are used for this.
Rooms and surfaces of complex shapes can be divided into simpler sections
Manual calculation of lining for walls and houses is performed in the following order:
- Total area, S = (2AL + 2BL), where A is the length of the room or building, B is the width of the room or building, L is the height of the room or wall.
- Ceiling area, S2 = CD, where C is the length of the ceiling, D is the width of the ceiling.
- Area of window and door, S3 = ab + cd, where a is the height of the window opening, b is the width of the window opening, c is the length of the doorway, d is the width of the doorway.
- Covered area, S4 = (S – S3) + S2. If necessary, all calculations can be combined into one formula: S = (2AL + 2BL + CD) – (ab + cd).
If there are several windows in the room, then you need to put the corresponding number in the third formula. For example, for three windows – S3 = 3ab + cd. As a result, to calculate the amount of lining, you need to divide the result obtained by the area of one board.
Type of wood and type of board
Larch is the optimal wood for use in baths and saunas
Lining refers to lumber quality, which is determined by the concept of class or grade. This parameter is adjusted depending on the type of wood used. Coniferous lumber is regulated according to GOST 8486-86, and pine and larch lumber according to GOST 26002-83.
To determine quality, it is customary to use classes such as:
- Extra – lining of the highest quality without knots, cracks or other defects.
- A – a board that can contain up to 2 knots per 1 linear meter.
- B – on the surface of the lining there are dark veins and shallow scratches, up to 1 cm in diameter.
- C – low grade with all the above problems.
“Extra” and “A” class lining is used for cladding interior walls and houses. Other varieties act as boards for finishing technical rooms. For the production of lining, the wood used is pine, oak, larch, ash, aspen and linden.
Larch and linden boards are optimal for use in steam rooms, bathhouses, and rooms with high humidity. Such wood is not subject to loss of color, does not crack, and does not twist when drying.
Oak is used for finishing inside the house. It has an excellent structure, does not rot, does not lose color. The only negative is the high cost of lumber.
Boards made of spruce and coniferous species, as a rule, have many knots, therefore they are used for cladding walls in dressing rooms. After installation, the surface must be covered with a protective composition, since spruce wood quickly loses its original appearance.
When purchasing lumber, it is advisable to go to the warehouse or go straight to the hardware store. Once on site, you should carefully check the material and make sure that you are offered the appropriate type of board.
Try not to order facing materials without checking, as cases of substitution or sale of low-quality products are becoming more common. If, nevertheless, the material was delivered to the work site without an initial inspection, then ask to unpack the pallet or take out 2-3 sheets for visual inspection.
If the quality of the board differs from the parameters dictated by GOST, then you can safely refuse the purchase or demand an advance payment back. Usually, if there are 2-3 bad boards in a pack, then the selling party simply slips in a low-quality or defective board.
Types of wood
The quality of the lumber and, as a consequence, the final appearance of the product, significantly affects the price of the lining.
There are four main types of wood that can affect the cost:
- category "Extra". This is the highest class of wood, which has no knots, cracks or other defects on its surface;
- class “A” is assigned to wood that can have one or two knots per linear meter of board;
- class “B” assumes that there are dark-colored defects on the surface of the wood, up to 1 cm in diameter;
- class “C” is assigned to the lowest quality wood from which lining of the appropriate price and quality is produced.
It is not difficult to calculate the required amount of material. If any difficulties arise, the seller of the product will always come to the rescue. The main thing is to make all calculations on time, before the transaction is completed. This will help save money and prevent a situation where a very large amount of trim remains after repairs.
Of course, there should be a supply of lining, but within reasonable limits. As a rule, experts recommend adding 10-15% of the reserve to the calculated value of the required amount of material.
Important! When choosing a forcing, take into account the functional purpose of the room where the finishing work will take place.
Lining on walls - competent calculation
Lamellas are often used for interior decoration of various rooms, including those with high humidity (steam room). Determine the type of lining, and then proceed to calculations.
- Take a tape measure and take careful measurements of the perimeter of the room, and also measure the height of the walls one by one.
- Draw a diagram of the layout of the room and indicate there the indicators that you have obtained.
- Now calculate the area of the walls one by one, do not take into account door and window openings.
- Add all the areas together - this will be the cladding surface.
- When purchasing, add another 5-10 percent to this number to include breakdowns or unexpected waste of lumber.
Now you don’t have to buy additional products several times, because everything is taken into account in the calculations.
What units are the lining sold in?
Lining is mainly sold by cubic meters, which can create some inconvenience when calculating the required amount of material. For greater convenience, it is worth remembering approximately how much area a lining of a certain size can cover:
- a panel whose dimensions are 6000*200*8 mm will occupy an area of 1.2 m2;
- if the lining parameters are 6000*250*5, then the area size will be 1.5 m2;
- a panel with dimensions 2600*148*6 will cover an area of 7.07 m2.
As you can see, the dimensions of the material take into account the thickness indicator. If the lining is sold individually, then the thickness indicator has no meaning and is not used when performing the calculation.
However, in the case of selling material in units of volume, the thickness parameter has a significant impact on the final result when calculating the required amount of lining.
Determining the required amount of lining in m2 (area)
The obtained data must be entered into the lining calculator. It is worth paying attention to what data the program requests. To get an accurate result, indicate the parameters in the requested values - millimeters, centimeters, etc.
The resulting number is the area of the sheets required to carry out the repair. It can be used to order materials remotely.
The calculator does not calculate parameters based on the thickness, length of sheets, dimensions of the mounting frame, or some other parameters. In addition, the calculation of lining and the calculator works in such a way that fractional values are always rounded, and therefore the result obtained will exceed the actually required number of sheets by 10-15%. There is a simple justification for this - when working with lining in hard-to-reach places, waste or installation defects are possible.
Additional lamellas will be useful even for a skilled craftsman, because no one is immune from mistakes. The remainder can be used as a consumable material, for creating elements or finishing fittings, as a spare, “just in case”.
Calculation of the amount of lining
The amount of lining is calculated using the following algorithm:
Determine the total area for cladding:
S = (2AN + 2VN) – ( ahn + bh 1 n 1) , where A is the length of the room; H – room height; B is the width of the room; a – window width; b – door width; h, h1 – window and door height; n, n1 – number of windows and doors.
If the ceiling area is taken into account, the calculation formula is as follows:
S= (2AH + 2BH +AB) – (ahn + bh1n1).
We determine the area of the lining for the attic, the ceiling of which is represented by two surfaces and a vertical front without bulkheads:
S = 2 AB + 2 b (4 A 2- b 2)/4 , where A is the distance from the ridge to the base of the slope.
If you need to calculate the amount of lining for an attic with bulkheads, the formula is as follows:
Area = 2AB + 2b (4A2-b2)/4 + Ph, where P is the perimeter of the bulkheads, h is the height of the wall.
You can calculate the area of one panel using simple mathematical calculations. To determine the area of one panel, you need to multiply the length of this panel by the width. In the result obtained, it is necessary to subtract the area of the groove, which is not an element of the skin surface.
To calculate the required amount of material in pieces, you need to divide the total area of the cladding by the area of one panel.
Calculations can be carried out manually, but this process, as a rule, takes a fairly large amount of time and effort. Special computer programs for online calculators will help speed it up and make it easier. As practice shows, the final values when using this method will not differ significantly from those that would be obtained by manual calculation.
Manual calculation
One of the common uses of the material is the interior decoration of a balcony (loggia). Using a simple sketch as an example, we will calculate how much it costs to cover this room with clapboard, taking into account how much it costs per sq.m. linings of different profiles.
So, only the walls need to be finished. We calculate the perimeter given the known
- lengths – 1200 + 3000 + 1200 +3000 = 8400 mm;
- height 2800 mm;
- the size of the “subtracted” openings - for the balcony block (window and door to the loggia) and the balcony frame (glazing of the loggia itself). Standard size of the opening for a balcony block (dimensions may vary depending on the layout of the house). The size of the opening for the frame is equal to the length of the fence, taking into account its height.
Accordingly, calculating the amount of lining is simple: from the total area of the balcony walls (excluding openings), it is necessary to subtract the area of the openings. For convenience, calculations are carried out in meters.
8.40 x 2.80 = 23.52 sq. m; 1.30 x 1.40 + 0.68 x 2.05 + 3.00 x 1.10 = 1.82 + 1.394 + 3.30 = 6.514 sq. m;
23.52 – 6.514 = 17.006 sq. m.
Next, the selected profile and how much lining fits in 1 m2 are taken into account. If a profile with parameters 140x15x3000 is selected, then one such panel has an area
0.140 x 3.00 = 0.420 sq.m. per square meter
1:0.420 = 2.38 lamellas.
Accordingly, for cladding you will need
17.006:0.420 = 40.5 panels.
You can compare how much a square of lining costs depending on the thickness and number of slats using information from manufacturers’ price lists (the price of lining is indicated there per square meter, per package indicating the number of slats in it, or per piece).
Important: when calculating, it is necessary to include a reserve of 5...10% of the amount of material!
How many linings do you need for a bathhouse?
Slats for sauna cladding are made from certain types of wood that can withstand high temperatures and high humidity in steam rooms and showers. When choosing products, take into account the location of the panels on the wall: horizontal or vertical. For compact baths, horizontal installation is chosen - for small rooms this method looks attractive.
The number of panels is calculated according to the following principle:
- we measure the height of the room, each wall separately;
- calculate the perimeter of the ceiling;
- transfer the results to a piece of paper;
- divide the height by the width of the lamellas - calculate the number of products per wall;
- We do the same for the other parties;
- We calculate the area of the ceiling and determine the optimal location of the panels on it.
To get a quick result, carry out an online calculation of the lining using a special calculator. The total values are approximate, so it is recommended to consult a specialist who will provide more accurate information.
Calculation of lining begins with measurements
The lining can have different sizes, depending on the type. A typical panel imitates a wall made of timber, its width is up to 150 millimeters, most often a board of 95 millimeters is used.
The thickness can be different, from 1.2 to 2.5 centimeters. The dimensions of the eurolining differ to a large extent, the transverse dimensions vary from 60 to 160 millimeters, but the thickness is always the same and is 1.25 centimeters. There are other types of wood, such as “American”, which imitates the overlap of a cladding board, “block house” lining, which creates the illusion of a log house, each option has its own dimensions.
Now, knowing the dimensions of the material, we measure the rooms that need to be finished, more precisely, all the surfaces where the cladding will be. It can only be walls, but someone will want to cover the ceiling with clapboard, especially in the bathhouse and, of course, in the attic. So, we determine the area of each wall and, if necessary, the ceiling, then add it up.
To ensure that further calculations of wooden lining are error-free, we subtract window and door openings (as well as areas covered by fireplaces and tiles) and obtain the total area covered by the material.
