What is a door frame – everyone knows. It is a component of any input or interior block, to which the sash is attached. The strength and durability of the door depends on the quality of this product, so when choosing, you should not only take into account the dimensions of the opening into which the door jamb will be installed, but also the material from which it is made and the thickness of the timber. Since there is no single state standard size on the door, the task of optimal selection gets a little complicated. Most door manufacturers offer their products in complete set, this greatly simplifies the situation. But let’s assume that this is not the case for you...
Door frames are purchased and installed when the isolation of one room in an apartment from another will be carried out using swing-type structures. For interior and interior products, types of molded door frames are frames made from types of wood that are characterized by minimal fluctuations in their overall dimensions depending on the relative humidity in the room. Most often this is wooden frame from larch or linden. Pine is considered less suitable material. It is not recommended to order or purchase door jambs made of alder, hornbeam, beech, oak (the latter option will be too expensive, and other types of wood may warp under the influence of excess or insufficient moisture in the air). Separately, it should be mentioned that these products are made of steel or impact-resistant and water-resistant plastic. They have limited use: they are either a box for front door, or (plastic) - for the bathroom or toilet.
The choice of size and design depends on:
- Designs – double, single, one and a half.
- Overall dimensions (length, depth, height).
- Proposed location for the opening.
- The presence or absence of a threshold.
Design features
The frame for a door without a threshold has a U-shaped design, which includes two vertical racks. The height of these elements is the same, and they are connected to each other using a crossbar. Such products are quite flexible in their installation, since they can be used in conjunction with the sash different heights(for example, for an individual order). Besides, they are cheaper. Constructions of the second type also have their advantages - with a rectangular frame, where a threshold is already provided. This option is more preferable in a practical sense, since it reduces the complexity of installation work. If the door jamb is intended for the opening of a bathroom or toilet, it must have a threshold, since it protects against possible leaks and unpleasant odors.
The door jamb is supplied with trim and extensions. The first ones allow you to refine the finished doorway, and the latter will be needed when the thickness of the wall in the room differs markedly from the depth of the box.
Door wooden box classified according to the following parameters:
- by type of platbands: simple or telescopic;
- by configuration: with or without additional elements;
- according to the design of the racks: with or without a sealing profile;
- according to the method of installing the fittings - overhead or embedded.
A door jamb with telescopic platbands, since it involves easy reinstallation when performing repair work. Dismantling a structure with platbands nailed or glued is more difficult to do.
How to choose the correct product sizes
Standard sizes door designs domestic production(the same is also adopted in Italy, Spain and Finland) is characterized by the following parameters:
- Door leaf width, mm – 550,600,700,800,900.
- Height, mm – 1900,2000, 2100.
- Thickness door frame, mm - 20...75.
Such a significant range of thickness is explained by the characteristics of the walls in the rooms. For example, for walls made of plasterboard or brick, products with a depth of 75 mm are considered ideal: they are easier to install, and if the difference is minor, you can always use additional elements.
- If the single door you like is made in France, then you should know: there the standard width dimensions are 690, 790, 890 mm.
- Doors less than 600 mm wide may be non-functional for bathrooms and kitchens if it is periodically necessary to bring in dimensional space. household appliances(fridge, washing machine etc.).
If it is necessary to determine the dimensions of door frames for existing doors, the following should be taken into account:
- door color scheme;
- finishing method (veneer and its texture);
- whether the door is equipped with an automatic, retractable threshold or not;
- is the door equipped hydraulic device for automatic closing.
Sequence for selecting size parameters
The initial data are the dimensions of the opening and the place where it is supposed to be installed. The box should usually be no more than 20–25 mm larger around the perimeter than the corresponding sash size. If the floors in the room have not yet been laid, then you should definitely take into account the height of the screed and the type of coating. Additional restrictions are possible: for example, if the room has water or infrared heated floors.
The width of the door frame should be linked to the height of the ceilings: sometimes features load-bearing covering in a house or apartment make it impossible to install a door frame with the required dimensions. A special case is when the product is mounted in a room with plasterboard partitions. If you are not the first owner of the property, then it would be good to find out from the previous owner the layout of the metal load-bearing profiles, on which plasterboard slabs were installed. Otherwise, an unpleasant surprise may await you in the form of unforeseen work to reinstall part of the wall of the room.
In accordance with the parameters of the opening, standard domestic dimensions of the door frame are taken into account as follows:
- The double thickness of the beam is added to the known width of the sash; it should be taken into account that the cross-sectional profile of the box is L-shaped.
- The protruding part of the seal, with a thickness of 300 mm and a height of 25–30 mm, is taken into account, as well as the supporting surface for the beam. The exact difference in height dimensions is determined by the thickness of the doors themselves.
- Next, add a 20–25 mm gap for mounting the box, and compare the result obtained with the existing dimensions of the opening.
It is better to subsequently slightly widen the opening than to artificially narrow it later with additions or additional wooden planks and other structures that will ultimately reduce the strength of the structure and will contribute to heat leakage through inevitable leaks.
In the same way, but taking into account the threshold, the dimensions of the product in height are taken into account.
Advice. When taking measurements, it is necessary, in order to avoid distortions, to use a laser or at least a regular level.
Difficulties in installation when there is a large difference between the door jamb and the opening
The biggest problems with installation door frame occur when the opening differs sharply from the depth of the product (more than 10%). In such cases, it is necessary to install slopes, or, which is less rational, to make longitudinal sawing of the timber with an artificial reduction in its thickness (no more than 10–15 mm!). Such an operation will require certain skill and the use of high-quality tools.
Installing extensions justifies itself in cases where the opening does not have exact dimensions in height and width (concrete and brick surfaces this does not apply). Then measurements are made no less than three points, and the average value is taken into account. It is better to purchase plastic extensions: they are more flexible and adhere more easily to the main surface. The color and texture of the surface of additional elements must fully correspond to the material of the structure.
Small (up to 20–25 mm) gaps between the opening and the frame can be easily closed by installing wide trims. The range of such products in specialized supermarkets is large, so choosing the appropriate size will not be particularly difficult.
Important! You should not purchase those types of door frames that are made by combining wood elements with MDF, multi-layer plywood, etc. Differences in the physical and mechanical properties of materials can most likely lead to warping of the product, and as a result, to difficulties with high-quality closure.
Before installing the door leaf, you need to correctly measure the opening and frame. Extreme precision in sizing guarantees long-term performance of the product.
Selecting the right door frame size
Determining the parameters of the frame structure for the door leaf begins with calculating the dimensions of the passage in the wall and studying GOST.
Measuring a doorway using the formula
It will help to make sure that the door frame fits perfectly into the opening width simple formula W p = W dv + 2*T k + M z *2 + Z p + Z z, where Sh p is the width of the opening, W dv is the width of the door leaf, T k is the thickness of the frame, M z is the installation gap, Z p is the gap for the hinges, and Z z is the gap for the lock.
According to the formula, a door 800 mm wide with a frame 30 mm thick, an installation gap of 10 mm, a clearance for hinges of 2 mm and a clearance for a lock of 4 mm should be placed in an opening almost 89 cm wide (80+2*3+1* 2 +0.2 +0.4=88.6 cm).
True to size doorway includes dimensions of the door leaf and door frame
And to get rid of doubts about whether the box is suitable for the passage into the room through the wall in height, the formula V p = V dv + R p + 1 cm + T k + M Sv + M Zn, where V p is the height of the passage into the room, V dv - the height of the purchased door, R p - the distance from the floor to the threshold, 1 cm - the standard size of the gap between the wall and the door frame (frame) in the upper area of the opening, Tk - the thickness of the door frame (3–10 cm), M Sv - the installation gap between the frame structure and the door leaf at the top, and M Zn - the installation gap between the frame structure and the threshold at the bottom.
It turns out that doors with a format of 200x90 cm with a block 5 cm thick and a threshold 3 cm high need to be inserted into an opening with a height of at least 210 cm (200 cm + 3 cm + 1 cm + 5 cm + 3 mm + 5 mm = 209.8 cm).
Dependence of the door frame on the opening
As indicated in GOST 6629–88, box interior doors should be 5–7 cm larger than the width of the standard door leaf. And it is recommended to make the block of doors at the entrance to the house up to 12 cm wide, because such entry group has an emergency exit function.
The height difference between the two elements of the door block can be from 43 mm. This means that a door measuring 600x1900 mm can be mounted in a frame with parameters 665x1943 mm, inserted into an opening 685 mm wide and 1955 mm high.
The dimensions of the door block increase as the frame structure and platbands are added to the door leaf
Table: correspondence of frame sizes to door leaf and opening
| Height and width of the door leaf (mm) | Height and width of the box or frame (mm) | Height and width of opening (mm) | Height and width of the opening, including door frames(mm) |
| 550x1880 | 615x1923 | 635x1935 | 750x2000 |
| 600x1900 | 665x1943 | 685x1955 | 800x2020 |
| 600x2000 | 665x2043 | 685x2055 | 800x2120 |
| 700x2000 | 765x2043 | 785x2055 | 900x2120 |
| 800x2000 | 865x2043 | 885x2055 | 1000x2120 |
| 900x2000 | 965x2043 | 985x2055 | 1100x2120 |
| 600x2100 | 665x2143 | 685x2155 | 800x2220 |
| 700x2100 | 765x2143 | 785x2155 | 900x2220 |
| 800x2100 | 865x2143 | 885x2155 | 1000x2220 |
| 900x2100 | 965 x2143 | 985x2155 | 1100x2220 |
Video: doorway calculation
Standard door frame sizes
Manufacturers of door frames focus on the dimensions of the door leaf and most often produce products in the following widths:
- 67 cm;
- 77 cm;
- 87 cm.
The door frame stick measures 30–35 mm. These millimeters are added to the width of the door on each side. Therefore, it turns out that the frame usually increases the size of the door leaf by 7 cm.
Due to the door frame, the door width increases by at least 6–7 cm
The height of the door frame is determined by the height of the door leaf. If the second indicator is 2000 mm, then the first may be 2070 mm.
The door frame adds 6–7 cm to the door height
Door purpose depending on size
The dimensions of the door are reflected not only in the dimensions of the frame, but also in the conditions of use of the product. For example, a particularly wide door leaf always leads to the living room.
The first thing you need to pay attention to when purchasing interior or metal doors is their size. Its choice depends on the purpose of the structure and the existing opening into which it will be installed. In this case, not only the dimensions of the door leaf are important, but also the door frame.
Standard sizes of interior doors
Domestic and foreign manufacturers offer many different variations in the sizes of interior doors. The most common width values you can find are:
- 600 mm;
- 700 mm;
- 800 mm.
However, there are doors on sale whose width differs from accepted standards. So, you can see canvases of 50 and 55 cm.
For sliding and double doors, the door width will be larger. It can range from 90 centimeters to 1 meter 80 centimeters. Doors large sizes are made to order.
The standard door leaf height is:
- 2 meters;
- 2 meters 30 centimeters.
But you can often find doors 1 meter 90 centimeters high, as well as 2 meters 10 centimeters and 2 meters 20 centimeters.
Standard sizes of metal doors
Entrance metal doors are considered an emergency exit, so they are subject to certain requirements regarding dimensions. They are set out in SNiP and GOST. But their implementation in the manufacture of doors is not necessary, so deviations up or down are possible.
Input width steel doors cannot be less than:
- 80 cm in private houses and apartments;
- 120 cm in rooms where the number of people exceeds 15 people.
The height of metal doors must be at least 1 meter 90 centimeters. Standard indicators, as for interior doors, are:
- 2 meters;
- 2 meters 30 centimeters.
By individual order You can make custom metal doors. Their height and width will correspond to the size of the opening. But this will affect the weight of the structure, and, consequently, the load on the walls. Therefore, increase the size metal door need to take these features into account.
Width and height of door with frame
Usually doors and frames for them are sold as a set. They are adjusted to size and will not cause problems during installation.
The width of the door together with the frame depends on the width of the door leaf:
- for a canvas of 800 mm it will be 87 cm;
- for a 700 mm canvas, the width with the box will be 77 cm;
- the value for a 600 mm door will be 67 cm.
When calculating, regardless of the size of the leaf 550, 600, 700 or 800 mm, the size of the gaps between the frame and the door is taken into account, which will be the same everywhere. It is equal to 6-8 millimeters, 3-4 millimeters on each side.
The standard height of the door along with the frame will also depend on the height of the door leaf:
- with a value of 2 meters it will be 2 meters and 7 centimeters;
- with a value of 2 meters 30 centimeters it will be 2 meters and 37 centimeters.
The calculations take into account the dimensions of the gaps and the threshold. The size of the gap is a constant value, it does not depend in any way on the height of the door.
The height of the threshold must be considered for entrance and interior doors installed at the entrance to bathrooms. For other doors, there must be a gap between the floor and the door leaf. It is 15-20 mm for kitchen doors, if used in the house liquefied gas and 5-10 mm in all other cases. The horizontal gap at the top of the door, like the vertical ones, is 3-4 mm.
The thickness of the door frame can vary from 15 to 45 mm depending on the material and manufacturer. This indicator should be sufficient to ensure reliable fastening and operation of the door.
Door purpose depending on size
The size of the door largely depends on its purpose. The width of 50, 60, 70 or 80 centimeters depends on the room at the entrance to which it will be installed.
The 50 cm wide door is very narrow. It is usually placed at the entrance to utility rooms, such as a pantry or dressing room. For interior doors, 50 centimeters is too narrow a passage. It will not be enough for free movement and movement of furniture. That's why they are made wider than 50 centimeters.
The door, whose width is 600 millimeters, is suitable for installation in the bathroom and toilet in small apartments. It can also be installed at the entrance to the kitchen.
The canvas, the size of which is 70 centimeters wide, is used to separate bedrooms, offices and other rooms. 70 cm is usually enough for comfortable movement around the apartment. This width allows you to carry furniture and other items that have big size. Sometimes you can find interior doors 80 centimeters wide.
The opening at the entrance to the living room is quite wide. Single-leaf and double doors or sliding systems, the width of which can be 90 centimeters or more. However, in small apartments the opening to the living room can be small, designed for a door of 700 or 800 mm.
When doing renovations or construction, think in advance about the size of the metal entrance and interior doors. Making an opening under standard values widths of 600, 700, 800 mm or more and heights of 2 and 2.3 m, you do not have to redo the opening or make custom doors.
When renovating, it is necessary to pay due attention to the installation of interior doors. Of course, there are certain standard dimensions, but in order not to have to destroy the wall or change the already chosen canvas, it is necessary to study all the nuances. In this matter, it is important to correctly calculate the dimensions of the opening, know the standard and features different types designs. On the modern market you can find domestic and foreign products; it is important to remember that GOST standards are different.
GOST sheet size indicators
The parameters of the door leaf must be taken into account when calculating the opening. Doors and frames have standard sizes approved by the state.
GOST table of interior paintings:
Type of room Width cmHeight cmDepth of opening cmkitchen702007Bathroom, bath55-60190-2005-7room802007-20Living room (double door 120 (two leaves)2007-20
If previously carried out renovation work, the walls were leveled or dismantled, the depth may not correspond to the above data.
The market offers big choice doors and components from domestic and foreign manufacturers. Most often, products have a height of 200 cm, a width of 60, 70, 80 cm (less often 190 by 60, 70.80 cm). The thickness of the door frame starts from 15 mm and up to 45 mm. Knowing the standards and dimensions of the doorway, you can choose best option. There are situations when ignoring the parameters ends with the expansion of the opening or the return of the newly purchased canvas.
When purchasing canvas from a foreign company, you need to carefully study the dimensions because their standard is somewhat different.
Doorway measurement formula
If you need to make an opening, but the issue with the door has not yet been resolved, you need to take into account the following points in advance:
- Dimensions of the canvas: height and width, thickness.
- Door frame dimensions: width and thickness.
- Width of platbands.
Calculation example:
- Tight
Height (H) – 200 cm
Width (W d) –70 cm
- Box
Thickness (T k) – 3 cm
- Installation gap (Mz) -1 cm
Door block (BD) – 2 cm
- Threshold height (in p) – 2 cm
Formula for calculating the width of a doorway:
W dv +2*T k+Mz+2*Bd = 70+2*3+1+2*2=81 cm
Formula for calculating the height of the opening:
V dv + V p +2*T k= 200+2+2*3=208
Conclusion: for a door leaf 200 by 70, a doorway of 208 by 81 is required.
Opening depth: standard 7.5 cm, so manufacturers make door frames to fit this size. If the canvas has already been purchased: you will have to make a box individually, or wider - use an extension. Therefore, it is better to carry out calculations in advance.
Algorithm for measuring the size of a doorway
To correctly measure the size of the opening, you must follow the following sequence of actions:
- Measure the height from the floor to the top (if the opening is not level, you need to measure in the narrowing area), to the middle of the casing.
- Width – from the middle of the left to the middle of the right casing (taking into account the narrowing).
- Depth is measured at the top, middle and bottom (to find the widest measurement).
A positive result depends on the accuracy of the measurements.
Standard doorway calculation table:
| Width cm | Height cm | Room view | Standard |
| 62 – 65 | 195 – 197 | Toilet, bath | 55*190 |
| 67 – 70 | 195 – 197 | Toilet, bath | 60*190 |
| 67 – 70 | 205 – 207 | Toilet, bath | 60*200 |
| 77 – 80 | 205 – 207 | Kitchen | 70*200 |
| 87 – 90 | 205 – 207 | Room | 80*200 |
| 97 – 100 | 205 – 207 | Room | 90*200 |
| 127 – 130 | 205 – 207 | Living room (double doors) | 2*60*200 |
Parameters of the frame and door leaf
The dimensions of the interior door frame must correspond to the dimensions of the door leaf, taking into account the gaps.
The frame should be proportional to the thickness of the wall. If there is free space left, add-ons are used to cover the gaps.
Extensions are racks around the perimeter of the frame to expand the door frame.
The main element remains the doors themselves. The standard is determined based on the following parameters:
- Interior door leaf height: 190-200 cm. Sometimes necessary individual approach. When making calculations, it is necessary to take into account the gap between the base and the floor so that the canvas opens and closes freely.
- The width depends on the room.
- Thickness varies (depending on the manufacturer’s requirements), standard is 4.5.
Features of double doors
For the living room a good decision The interior design will include the installation of double-leaf interior doors. Attention, when calculating the dimensions, double the values.
As for GOST: the standard is a width from 120 to 150 cm. This range allows you to get a comfortable full-length functional design. Thickness – 4.5 cm.
Details about measurement and installation:
If the opening does not correspond to the specified size and cannot be expanded, the following is necessary:
- One leaf is in a fixed position and is used as needed.
- The width of this leaf is 1/2 or 1/3 of the width of a standard interior door.
- The second is a full-fledged door.
Both options have a big advantage in functionality: they improve maneuverability: it’s easy to bring in and take out furniture.
As for the height: if the opening is larger than the specified standards (size: 200-210 cm), a special fixed bar is attached at the top.
Maximum canvas dimensions
The widest standard doors are 90 cm. Only a limited number of manufacturers produce products of such dimensions. In new buildings, such parameters for the interior door frame are not used, because the design looks ridiculous or cumbersome. Still, these sizes are found:
- In the "Stalin"
- In offices.
The most popular material for interior dimensional (and not only) canvases: MDF.
There are a huge number of door designs for interior rooms in an apartment or cottage in terms of design, material of manufacture and opening mechanisms. Moreover, most of them are made according to GOST standards for interior doors. This greatly simplifies their selection and installation. You can, of course, install a model with non-standard dimensions in your home. However, such a product will cost more than a standard version made according to GOST.
GOST requirements for standard doorways
The dimensions of the interior door (door block) must strictly correspond to the dimensions of the opening in the wall between the rooms. In fact, in building standards and GOSTs specify exactly the opening parameters. And in accordance with them, you already have to select the thickness and width with height for the door frame and the door leaf inside.
If a unique one is created designer interior in a private house, then the doors to the rooms can be made whatever you want. It is only necessary to provide openings in the partitions and load-bearing walls required sizes. But then door products will have to be ordered according to individual parameters for more money than standard options.
Creating exclusive interior, do not forget that the door can complement the style if you approach the issue correctly
With city apartments the situation is fundamentally different. All of them are built according to standard design solutions, in which openings for interior doors are initially laid to standard sizes. And in the vast majority of cases, expanding this hole is prohibited. Here it remains to select door structure only under existing realities. And knowing the requirements of GOST, choosing a door in a store will be simpler and more error-free.
What is the door structure made of?
Marking of interior doors
When choosing an electric generator or a submersible pump for dirty water, you have to carefully study many parameters in the data sheet for this equipment. The power of the unit, productivity, and other quantities are important there. WITH internal door everything is much simpler. The accompanying documentation indicates a set of numbers and letters that fully describe the width and height, as well as design features products.
Based on their design and method of opening, door blocks are divided into several main types:
- “G” is a blank wooden panel.
- “O” – canvas with glass insert.
- “Rp” or “Rl” – right or left swing door.
- “K” or “P” – swinging or sliding structure.
Design options for interior doors
In addition to these letters, the marking also indicates:
- type of product - door block for the entrance to the apartment (“DV”), interior (“DM”) and for the bathroom (“DS”);
- width and height of the opening - two figures in decimeters;
- number of canvases in the block;
- class of air permeability (“B1”, “B2” or “B3”) and strength (“Md1”, “Md2”, “Md3” or “Md4”);
- designation of the standard “GOST 475–2016” (introduced to replace the old GOST 6629-88).
The above standard contains a table that lists the standard sizes of interior doors. More precisely, the reference dimensions of openings in walls and partitions are indicated there. It is these standard sizes that door block manufacturers start from. According to them, the height of the opening can be 1870, 2070 or 2370 mm, and the width from 710 to 1950 mm.
| Brand | Dimensions, mm | |||
|---|---|---|---|---|
| Box | Canvas | |||
| Height | Width | Height | Width | |
| 21-7 | 2071 | 670 | 2000 | 600 |
| 21-8 | 2071 | 770 | 2000 | 700 |
| 21-9 | 2071 | 870 | 2000 | 800 |
| 21-10 | 2071 | 1170 | 2000 | 900 |
| 21-12 | 2071 | 1170 | 2000 | 1100 |
| 21-13 | 2071 | 1272(1298) | 2000 | 1202(1204) |
| 21-15 | 2371 | 1472(1498) | 2300 | 1402(1404) |
| 21-19 | 2371 | 1872(1898) | 2300 | 1802(1804) |
Dimensions and thickness of the canvas
The width and height of the door leaf are usually 70 mm smaller sizes doors along the outer perimeter. 30–35 mm on each side goes to the box (frame). But there may be other options that are far from these standard values. Manufacturers are free to choose the dimensions of the product parts themselves in accordance with the design and materials from which it is made.
- for the kitchen – 70 cm;
- for the bedroom and other rooms – 80 cm;
- for the living room - double-leaf model 120 cm;
- for the bathroom – 60 cm.
Typical sizes of interior doors for different rooms
The standard height in all cases is assumed to be within the range of 1800–2000 mm, and the thickness of the canvas is 30–40 mm. At the same time, it is recommended to install doors in a bathroom or bathroom that are a little thicker and with a more moisture-resistant coating than in ordinary rooms.
How to correctly measure the height of doors with a threshold
Standard box sizes
The width of the box should ideally completely match the thickness of the wall. If the door is thicker than the interior partition, it will be difficult to secure it in the opening. Plus, there will be unsightly gaps on the sides under the casing. In the opposite situation, when the wall is too thick, you will need to install additional additional elements (extensions).
Design of interior doors with extensions
Opening sizes
Typical dimensions of doors with frames and openings for them are described in GOST standards. House designers and door block manufacturers try to follow these standards to make it easier for builders to select materials. However, often constructed buildings have deviations in height or a slight slope.
How to measure a doorway correctly
An opening for an interior door that differs from the standard dimensions in domestic high-rise buildings is far from uncommon. When measuring it before going to the store for door block The width and height of the existing hole in the wall should be measured in several places at once. It will still need to be leveled strictly vertically. If you make an error in the measurements, then it is unlikely that the product will be installed in accordance with building regulations.
Necessary measurements for interior doors
Double doors
If the opening is wider than 80 cm, then it is recommended to install a double door in it. The size of the door leaf is selected in such a situation as for two halves of a single structure. In rare cases, it is also possible to install a one-and-a-half model - one canvas is large, the second is half as large. But even here it is better to try to choose an option with two sliding doors. It will look more aesthetically pleasing than its one and a half counterpart.
Doors with hidden frame
Owners who want something unique in the interior often refuse standard models and prefer to install doors with a hidden frame. In these blocks, the door leaf is flush with the surface of the wall, and there are no platbands as such. The dimensions of interior doors of this design are selected according to the same scheme as ordinary ones. Only in thickness they should ideally match the parameters interior partition so as not to protrude even a centimeter from it.
