How to calculate the size of the opening for an interior door. Doorway dimensions: generally accepted standards and examples of calculating door dimensions

As a layman, we rarely come across a choice of interior doors. If such an opportunity occurs, most often we cannot choose the right interior door and correlate the dimensions of the door block, door leaf and doorway. In this article, I will show you how to choose an interior door, including without seeing the door visually, that is, in an online store.

Sale of doors in online stores

Selling doors through online stores has become commonplace of our time. On the one hand, it is convenient, you don’t need to go anywhere, a lot of shops are within the reach of a “click”. On the other hand, there is no visual contact with the goods and it is not easy to figure out the dimensions of the doors without a cheat sheet.

It’s good if there is an online consultation on the store’s website, and the price tag is formed without cheating, taking into account all the elements of the door. The last time I dealt with the online store Tudoor.ru. Unlike their counterparts, this store provides a complete door calculator, taking into account all the necessary elements, without which the door cannot be installed and function. Already at the first stage of selection, they explain to you that an interior door is not only a canvas and a box, but also hinges, a lock, platbands or platbands with an extension, the quality of which determines the quality installation and long operation of the door. Look more information on the site tudoor.ru, you will like it.

However, you can not come to the store's website without having any data at all, which door you need. And here I DO NOT mean the quality characteristics of the interior door:

• Cloth deaf or with glass;
• Door leaf made of solid wood or paneled;
• If the canvas is paneled, then with what kind of filler (cardboard or timber);
• How is the canvas finished with natural veneer or film or MDF or other modern material;
• Which door frame is offered to the canvas, from solid wood, glued laminated timber or MDF.

Here I am talking about the right choice of door sizes.

How to choose the right interior door size

To begin with, in order to speak the same language, let's remember that the interior door in the kit is called a door block. The door block consists of the following elements:

Door leaf. The movable part of the door, which performs the main function of the door, opening and closing;

Door frame. Consists of three or four strips. Two vertical posts, one upper crossbar and an optional element of the lower bar - the door sill.

Door fittings. Special decorative elements that should cover the ends of the doorway, if they are wide, the width of the box.

Door frames.Decorative strips designed to close the mounting gap between the box and the opening.

door latch or a castle.

Door hinges. There are universal, right or left. Also collapsible or not detachable.

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Do not forget about the doorway, the dimensions of which are the starting points when choosing a door by size. Namely, with the correct measurement of the opening, the correct choice of the door begins.

How to properly measure a doorway

Singing in the interior partition, designed to install a door, is called a door. In standard apartments, it has standard sizes. However, you can always expand or narrow the doorway for the planned door.

You need to measure the doorway in three parameters: width, height and thickness.

opening width must be measured along a horizontal line from edge to edge.

Opening height. There are two points here. The interior door can be installed both before finishing the floor and after finishing. Both options are eligible. If the door is planned to be placed on the subfloor, then the height of the opening is measured from the subfloor to the top of the opening without gaps. If the door is placed on a finished floor finish, then it can be taken into account that the frame should be 5 mm apart if the finish is floating (laminate, board) and 2-3 mm if the finish is monolithic (tile). Usually this gap is taken into account when installing the door and it does not affect the height of the purchased box.

opening thickness. This amount is needed to purchase add-ons. If the thickness of the opening is 75 mm, then this is the width of a standard box and extensions are not needed.

Choosing a door according to the size of the opening

So, we have the dimensions of the doorway, how to choose the right interior door. Here's a little cheat sheet to help you. Clearances must be of the following values

• The gap between the canvas and the box should be 3 mm on each side;
• Between the canvas and the finishing floor 10 -15 mm;
• Between the box and the subfloor 0 mm;
• Between the box and the finished floor 4-5 mm;
• Mounting gap between the box and the opening is 20 mm on all sides except for the threshold (if any);
• Mounting gap between the door threshold and subfloor 0 mm.

Reverse calculation of the width of the opening according to the width of the canvas

There are standard sizes of door panels, according to which you can calculate the desired width of the doorway. This is the width: 600/800/900 mm and swing 1200 mm. The height of the canvases is 2000/2200/rarely 2400 mm. Box width 25 mm.

If we add these values ​​​​and add to them all the gaps from the cheat sheet, we get that for a door leaf of 2000 × 800 mm, we need a doorway of 2100 × 900 mm (rounded up), a box without a threshold.

Regardless of the purpose of the structure, doors and the necessary doorways for their installation are needed to enter it and communicate between rooms. Russian baths are no exception. And it is unlikely that in the near future humanity will come up with a different way to enter, take hygienic procedures and not lose beneficial warmth during repeated movements. The configuration and size of the doorway by the owners can be chosen arbitrarily. However, the high cost of custom-made doors with non-standard dimensions convinces you to buy ready-made designs. This means that the size of the opening in the bath under construction must correspond to the product chosen for the arrangement, so that they do not have to be subsequently adjusted to each other.

Video about installing a door block in a log house

Door and opening standards

In favor of the purchase of door blocks made at the factory, not only the outstanding price is expressively “verb”, the voice of which will go from a soft whisper to a heart-rending cry when purchasing extensions, seals and fittings.

• Factory door blocks are fully completed and prepared for installation. The owners of the baths can only install them in accordance with the attached instructions.
• Factory-made door frames and leafs, selected with a focus on operating conditions, will not be deformed under conditions of intense vaporization.
• Guarantees are provided, low-quality products can be exchanged without problems.

In case of replacement during the next repair, the standard size of the doorway will provide an opportunity to quickly find and buy a similar product. And the installation itself will not require any superhuman efforts, no special skill, no experience.

Differences between foreign and domestic doors

Bathhouse owners are now given the opportunity to equip buildings with products from Russian, Belarusian or Ukrainian manufacturers or buy a door structure made at a Spanish, Italian or French factory.

They regulate the dimensions of doors and the corresponding dimensions of doorways GOST number 6629-88, SNiPs and DINs with numbers from 18100 to 18102. The difference in the widths, heights of doors and openings is insignificant, since all standards are focused on the average physiological parameters of users, but about taking into account the specifics of the country of origin, one should not forget when calculating the opening:

• The height of the door leaf usually varies around two meters. It is 2000 mm ± 100 or 150 mm.
• The width of the leaf of the factory single-leaf door of domestic production is from 600 to 900 mm. Foreign manufacturers on this parameter are in solidarity with ours. Only the French produce canvases with a width less than 1 cm (89 cm, 79 cm, etc.).

The thickness of door structures produced in the CIS is designed for the traditional wall thickness of 75 cm. Special schemes have been developed to increase and decrease it. If they are not provided by the manufacturer, you will need to purchase and install an additional bar.

Please note that the maximum thickness of the factory door block is 128 mm. If there is no money and a desire to install an additional extension on excessively “thick” walls, you can cash out the opening only on the front side, and make a slope on the back or install a self-adhesive flashing.

Fundamentally, the thickness does not affect the choice of the door and the calculation of the opening for it. The basic indicators of height and width are important, the so-called door clearance, starting from which the required values ​​\u200b\u200bare calculated.

How to choose the width of the door clearance

If there are no too well-fed people in the owner's family or among his acquaintances, you should not get carried away with wide bath doors. After all, they will not retain heat in the same way as walls:

• The doorway width of the front door preferred by the owners of suburban baths is on average 80 cm. More can be done, taking into account the need to bring in and change bath furniture and equipment.
• For the arrangement of internal partitions, doors with a width of 70 and even 60 cm are sufficient.
• In the steam room, bathroom and shower room, if any, it is better to install doors with a width of 60 cm.

If possible, then for the steam room it is advisable to buy a special door made of linden, and already by its dimensions, with scrupulous accuracy, calculate the size of the opening.

The formula for calculating openings for bath doors

In order to calculate the dimensions of doorways, we use the simplest arithmetic. We will corny denote the height of the door clearance with the letter B, and the width with W. We also need the thickness, that is, the size of a quarter of the box beam. Usually its side is 25 or 30 mm.

• We add the thickness of the right and left beams to the width of the canvas, suppose 25 mm + 25 mm. In order for the door to function normally, you need to leave gaps along the porches. For free operation of the loops, add 2 mm, and for the lock 4 mm. You will also need technological clearances for assembly seams. Right and left 10 mm. Total: W + 2 × 25 + 2 × 10 + 2 + 4 = opening width. So, 76 mm must be added to the width of the canvas.
• Add 10 mm to the height of the door leaf without the threshold. At the top, in addition to the box thickness of 25 mm, add 3 mm and another 10 mm for the gap for the top mounting seam. Total: B + 3 + 25 + 10 + 10. It turns out that 48 mm should be added to the height. The height is calculated from the plane of the finished floor.
• To the height of the door with the threshold, add the thickness of the upper and lower box beams, 3 mm for the free operation of the door at the top and 5 mm at the bottom. Total: B + 2 × 25 + 5 + 3. It turns out that the difference between the height of the canvas and the height of the opening is 58 mm.

It is desirable that the doors in the same room are at the same level, for which you need to perfectly level the floors. If you plan to close the doors, do not forget that their arrangement will also require the installation of platbands.

Features of the formation of openings in wooden baths

They can be formed in the process of erecting crowns from a log or timber. It will be necessary to pre-mark the elements of the log house and make additional grooves for attaching the boxes. After that, it will still be necessary to wait for the time required for the traditional shrinkage of a wooden structure.

A year and a half of the post-construction break must be sustained in any scenario. Installation of door blocks in a wooden bath is only permissible after intensive shrinkage.

It is much easier, having withstood the required technological break, to cut the openings with a chainsaw according to a precisely verified marking. When using this method, in order for the crowns to “not move apart” along the vertical axis of the wall, a groove is made for the installation of a reinforcing bar. The door frame is nailed to it.

Between the top line of the doorway and the frame, be sure to leave 3-5 cm, since the wooden structure will slightly settle later.

It is absolutely easy to calculate the dimensions of doors and doorways. Thoroughly knowing the algorithm for mounting door blocks, specialists will calculate all the necessary values ​​\u200b\u200bin the moment. It is somewhat more difficult for inexperienced performers, since they need to understand why this or that gap is needed.

In case of an error in the calculations, the opening in the wooden box is easy to fix. Need more - use a chainsaw. But to reduce too much clearance, carpenters recommend installing an additional box - a counter box.

Perhaps, there is little that can be changed in the repair of the interior of an apartment or a private house without causing global devastation and without spending significant effort or financial resources, so that it has such a practical and aesthetic effect as if you change interior doors.

After all, no matter how beautiful the wallpaper or flooring, leaving the room, the last thing that captures our consciousness is the decor and quality of the alignment (canvas) with its frame. Therefore, such a final touch largely affects our perception of the design and comfort of the room as a whole.

Marking of door products

With the marking, which is the passport of the product, not everything is so simple. On the one hand, there are certain GOST recommendations for designations, and on the other hand, the abundance of manufacturers sometimes confuses the general standards. It is not uncommon that doors made using the same technologies and having a visual identity can be named and marked in different ways.

To begin with, consider the state standard, which no one has canceled. So the manufacture of wooden interior doors for residential and public buildings is still valid GOST 6629-88, according to which it is indicated (in order of positions in the marking):

Product type: D- complete door P- door leaf.

Canvas type: G- deaf, O- glazed, To- glazed oscillating, At- reinforced with continuous filling.

Door height with frame, in dm.

Door width with frame, in dm. Additional letter indexes: L- left door H- with a float, P- with threshold.

Index of the state standard.

for example: DG20-10L GOST 6629-88 or PO19-7LN GOST 6629-88.

Despite the fact that any self-respecting manufacturer of door products still adheres to state standards, along with official model designations, entrances and individual factory codes. For example, one of the Russian brands uses this identification, releasing doors 40 mm thick and 2000 mm high:

Model name.

Canvas type. DG- deaf, DOP- with cut glass DOOF- with two milled glasses.

Opening width, cm.

Veneer color.

opening direction.

For a variant of such products on the packaging, you can read: "Stella" DG 60 Oak lion.

Ultimately, no matter how any factory marking differs from the Gostov one, the appearance, device and operational properties of the door are more important to us, which you will need to ask the seller in detail and carefully examine the company passport with its specifications and installation instructions.

What do you have to deal with or what are the doors?

Doors to an apartment or a country house are classified according to the following parameters:

Location in the building:

Input (external)

Interroom (internal)

Number of canvases:

single floor

Double field

One and a half

Opening method:

Door leaf filling:

glazed

Functional purpose:

For residential buildings

For public

Special

By material:

metal

Wooden

glass

Combined.

The market does not let you relax in search of a suitable model, offering a huge variety of door products. However, upon closer examination, several main types of products can be distinguished:

For painting

They allow you to achieve a complete color combination with the surrounding design. Supplied primed, ready to be coated with decorative interior compounds.

In this group of products, two subspecies should be distinguished - elite and budgetary orientation. The expensive segment of doors for painting is produced for the so-called concealed installation. After installing and tinting such a product, only a protruding handle can indicate the presence of a passage in the wall.

Budget models can be found in many public institutions, they are also widely used in "economy" apartment renovations and as temporary options. Represent the textured MDF covering on a bar framework. Their main advantage is the lowest price among all door structures.

Laminated

They arrive at the distribution network ready for installation. In many ways, the device resembles the previous budget class. However, they have a stain-resistant coating laminated with a polymer film that can imitate any decorative material.

They can be filled with heat and sound insulating materials: corrugated cardboard, mineral wool, polyurethane foam or foam plastic. There are models with smooth or textured surfaces, as well as with profiled overlays made of pressed MDF.

Veneered

They are the next higher level in quality and appearance. The basis for them is the same frame MDF with fillers of different types. The thinnest sections (0.7 mm) of precious wood - veneer - are glued on top of the base, which are then varnished. The result is a complete imitation of a product made of massive material, but with less weight and an acceptable price.

From solid wood

Probably it is not necessary to praise products from completely natural material once again. In addition to all its advantages, such a door will add sophistication and comfort to any interior, if you are ready to pay its high cost. However, one should not forget that wood is very sensitive to moisture changes, therefore, for a long service life of such elite products, mandatory control of the indoor microclimate is required.

glass

They also belong to the high price segment in the market offers of door products. They help in the implementation of special design delights, and are also ideal for installation at the entrances to bathrooms, showers, saunas and other places with high humidity. They are transparent, translucent, frosted, made of colored glass and with surface milling.

metal-plastic

They serve as a good solution for exits to loggias, terraces, as well as for damp rooms, as a cheap alternative to glass doors. They have excellent sound insulation and heat retention properties. Surfaces of products can be laminated with films for any natural material

About dimensions and not only. Standard dimensions of interior doors

If we do not take into account non-standard approaches of some private customers, for whom the binding of door dimensions is based on subjective requests and desires, then most manufacturers are guided by standard openings of typical buildings of the Soviet period. And why reinvent the wheel - from the point of view of the ergonomics of door products, designed for the physiology of the human body, everything has long been invented and thought out.

At the same time, the share of individual requests (regarding the dimensions of products) on the market is small, therefore, it is successfully replenished by the efforts of small private manufacturers, although they cost much more than standard models.

The ratio of the dimensions of doorways and doors (door frame + leaf) according to domestic SNiP. From the tables below you can find out the size of the doorway for a door with a width of, for example, 80 cm.

Door dimensions, mm	Opening dimensions, mm
Width height	Width	Height
600*2000	680-710	2050-2070
700*2000	780-810	2050-2070
800*2000	880-910	2050-2070
900x2000	980-1010	2050-2070
600*1900	680-710	1950-1970
550*1900	630-660	1950-1970
600+600*2000	1280-1310	2050-2070

Ratio defined by DIN standard:

Door dimensions, mm	Opening dimensions, mm
Width height	Width	Height
600x2000	700-740	2060-2080
700*2000	800-840	2060-2080
800x2000	900-940	2060-2080
900x2000	1000-1040	2060-2080
600+600*2000	1340-1400	2060-2080

Width

The very first, speaking about the size of doors, both hinged and sliding, any of us means the width of the canvas, which we will use daily. Somewhere you need and want to be wider, but somewhere a narrow alignment is enough. Guest verified recommendations offer the following options:

For bathrooms - 600 mm,

For kitchens - 700 mm,

For living rooms 800 mm.

If we consider real market products, then its range (adjusted for the needs of modern consumers) is somewhat wider:

For bathrooms - 550 mm and 600 mm,

For kitchens - 700 mm,

For living rooms 800 mm and 900 mm.

Let's not undeservedly forget the double doors, because they often emphasize the special status of living rooms or passages to the terraces. Usually they are made up of the same standard canvases in equal and unequal combinations, for example: 600+600=1200 mm or 600+800=1400 mm. Also for the "kopeck piece" are used and narrowed segments along 400 mm - 400+400=800 mm or 400+800=1200 mm.

Height standards

If we start from the domestic "classics", then it has been preserved in the proposals 1900 mm and 2000 mm, although now the European standard is also often found - 2100 mm. Higher products can also be installed - 2300 mm and even to the ceiling. It is clear that such "giants" are more convenient to use in a sliding version.

The thicker the canvas, the better?

Is it always like this? What does this setting affect? Of course, massive thick sashes perfectly emphasize the interiors of living rooms, especially those made in the Empire, Baroque, Renaissance styles, but thin screens and sliding partitions will be a great addition to passages to pantries or dressing rooms.

The thicker the door, the heavier it is (in its group of design solutions and type of materials), therefore, the requirements for its hinged fittings will be higher, it may be necessary to install additional hinges, which together will lead to an increase in the cost of the entire product. Therefore, the choice of canvas according to the criterion of massiveness, as well as according to other parameters, should be based on rationality and optimality.

The typical products prevailing on the market have a thickness in the range of sizes 30-40 mm. Already in this fork of parameters, most often you can find doors 35 mm and 40 mm, as well as with intermediate values 36 mm and 38 mm.

In addition to the indicated running dimensions, sliding MDF partition doors can be very thin - from 20 mm, but the products of enterprises from solid wood are unlikely to be produced with a base cross section of less than 40 mm(can reach up to 50 or more on special orders). It should be noted that came to private interiors relatively recently, but gaining popularity, tempered glass doors, the thickness of which starts from 8 mm.

What else is good to know when choosing an interior door?

When making measurements of the opening, for the purchase of a new door, please note that it must be at least 30 mm more dimensions of the box along the top edge and in width. The installation gap will be required to adjust the product with wedges, followed by fixation with mounting foam. Of course, this value is relevant for the correct opening in relation to the vertical and horizontal.

Most boxes are made thick 35 mm. Those. overall width of the product assembled with the canvas 800 mm will 870 mm (+35 mm*2). Similarly, the height size increases, though you still need to consider whether there is or is not a threshold.

Thick sashes retain heat better and counteract noise from adjacent rooms.

When installing the box, before installing floor coverings, carefully calculate the level of the finished surface. If the door starts to rest against the floor, then it is very difficult to cut it perfectly on your own, and it will not work with every model.

In conclusion, we can say that the interior door structure, with the apparent simplicity of the device, is quite sensitive to installation errors. Therefore, either its installation and configuration will take you a lot of time, or you will have to involve highly specialized specialists.

Sections of the article:

Carrying out a major overhaul in a house or apartment in most cases ends with the installation of new interior doors. However, it is at this stage that the greatest difficulties often arise. The reason for this is the dimensions of the doorway, which often have a lot of errors in the form of wall curvature and non-compliance with GOST dimensions of interior doors. Therefore, in order to successfully complete the replacement of door structures, it is worth familiarizing yourself with the recommendations of GOST and the permissible changes in the dimensions of the openings.

Standard dimensions

It is quite important to distinguish between them according to their functional affiliation in order to determine the appropriate dimensions of the doorway. The size of the opening leading to technological rooms by the type of bathrooms may have slightly smaller dimensions than for ordinary interior doors.

Typical dimensions of interior doors.

• Height;
• Width.

The thickness or depth of the passage largely depends on the material of the walls and the conditions of construction, therefore they are not significant indicators.

Height

The height of the doorway for bathrooms can be from 1.9 to 2 m. The same applies to the bathroom. Kitchen aisles in most cases have a height of 2 m. For other rooms, the norm is 2 - 2.1 m. According to calculations, this is enough for comfortable movement of people with an average height of 1.7 m.

However, passages with a height of 2.2 - 2.3 m are often found. Such dimensions are explained by the ratio with the height of the ceilings. In most apartments, which have a floor-to-ceiling distance of no more than 2.6 - 2.8 m, the best option is the standard size of 2.1 m.

The main condition justifying the increase in the standard height of doorways is the need to move large pieces of furniture.

Width

According to GOST, the standard width of a doorway intended for installing an interior door, when using single-leaf structures, has an average size of 0.7 to 0.8 m. Such parameters are justified by average statistical data on the dimensions of an adult.

At the same time, the permissible width of passages for bathrooms and toilets can be from 0.55 to 0.6 m. The use of double doors for living rooms and bedrooms allows an increase in the width of the doorway to 1.2 m.

Non-standard dimensions

Currently, non-standard sizes of doorways are much more common than those prescribed in GOST. This trend is due to the desire to bring more functionality and convenience to the house, as well as highlight the individuality of the created interior style.

Most often, redevelopment lends itself to the width of the doorway in the living rooms. At the same time, the increase in parameters is carried out by more than 1.5 times. So, in an effort to add a feeling of large space, often instead of the usual single-leaf swing door of 0.7 m, the size of the opening increases to 1.6 m and a double door is installed.

Due to the presence of large furniture and with sufficient dimensions of the rooms, as well as if you want to give the room a visual expansion of space, the opening for the interior door can be expanded and have dimensions of up to 1 m. In this case, both a swing wide door and sliding door systems with one or two doors.

However, there are frequent cases of redevelopment of interior passages by reducing their width. Such actions are also allowed. But with any changes in the existing passages between the rooms in the direction of their narrowing, it is necessary to rely on the requirements of evacuation and fire safety. The main condition for compliance with these requirements is the unhindered movement of people in emergency situations.

arched doorways

Arches can be attributed to certain types of doorways. This gradation is due to the peculiarities of their designs. In the absence of the door leaf itself, the width and height of the openings can expand significantly. The main condition for redevelopment is the change of walls that are not load-bearing structures.

However, even for arches there are some engineering limitations that directly depend on the type of arched structure.

Types of structures

Arches are conditionally divided according to their shape into the following types:

• Rectangular;
• Classic;
• Ellipsoid;
• round;
• Semi-arches;
• Eastern;
• Asymmetrical.

The size of the opening of a rectangular arch in most cases is almost identical to the dimensions of the passage for a standard interior door in height and averages 2-2.1 m. 2 - 2.3 m. At the same time, the width in most cases does not change and is standard 0.8 m.

Despite some narrowing of the rounding of the ellipsoidal arch, the parameters of the doorway for its installation change significantly. So, the width is about 1 m, while the height of the passage can reach almost to the ceiling and have a maximum allowable value of 2.5 m. Such drastic changes are necessary, since with standard dimensions a passage of this shape will look ridiculous.

Round structures, like ellipsoidal ones, require significant changes to the walls. The minimum width with such an arched opening is 0.9 m, and the height, due to the large radius, also approaches the maximum technologically permitted value of 2.5 m.

A semi-arch and an eastern-type opening in most cases do not require a change in the width of the passage at standard values ​​​​of 80 cm. But asymmetric structures can have the maximum allowable width and height parameters.

Features of calculating the dimensions of the doorway

When choosing doors, it is very important to correctly calculate the dimensions of the opening. Thus, the installation of the structure can be greatly facilitated. Accurately selected height and width of the product allows not to alter the opening for the interior door.

It is important to remember that when calculating in newly built buildings, possible shrinkage must be taken into account. The timing of such processes directly depends on the materials from which the walls are made. Wooden buildings are subject to the greatest changes. At the same time, ordinary glued beams can decrease by up to 2 cm per meter of height. Logs settle up to 15 cm per 1 m.

The installation of various types of door structures can significantly affect the width of the passage. A sliding coupe door requires a width margin of about 10 cm. A roto door, due to the complexity of the mechanism, also requires an additional niche that reduces the width of the opening to accommodate fasteners.

Finishing work carried out in rooms can also significantly affect the size of the doorway. So, laying a simple, not insulated linoleum takes about 1 cm in height. Laminate reduces this figure by 2 cm. In the case of laying tiles or porcelain tiles on the floor, the height of the doorway will decrease by 3–5 cm. Laying a warm floor can take an additional 7–10 cm.

During construction and apartment renovation, it often becomes necessary to replace interior doors. Oddly enough, this rather simple procedure raises many questions. To ensure that the purchase of a door unit does not turn into a nervous breakdown for the homeowner, certain rules must be observed related to generally accepted installation standards. After reviewing the issue in more detail, everyone can avoid mistakes when buying and installing doors.

What is a doorway

A through hole in a wall or partition, intended for the passage and installation of doors, is called a doorway. As a rule, the opening has the shape of a rectangle. Although sometimes there are square, arched and even rounded openings.

Photo gallery: types of doorways

Arched doorway with lighting will decorate any interior The doorway in the form of an arch visually expands the passage to the next room The classic doorway has a rectangular shape. The combination of a doorway with a bookcase is a good solution for space zoning

In any house and apartment, there are at least three (entrance, kitchen and bathroom) doors. Their maximum number is limited only by the size of the living space and the number of rooms. However, passages without doors are sometimes used. Curtains, curtains, curtains can hang in them, but more often they are left free. Sometimes the opening is blocked by a sliding or sliding door.

In construction and repair practice, there are two options for installing doors:

• selection of the size of the door block for the existing opening;
• adjusting the doorway to the purchased door.

The first option is always preferable, since in this case long and laborious processes associated with cement work are excluded. Fortunately for consumers, developers and door manufacturers have long adopted a uniform standard for doors and doorways. Thanks to this, you can always choose a finished door with dimensions suitable for a standard doorway.

Standard door sizes

The vast majority of interior doors are produced in accordance with GOST 6629–88. This document regulates the dimensions of door blocks used in residential construction, and is called "Internal Wooden Doors for Residential and Public Buildings". Since today the variety of types of doors is extremely large, many experts note that the document is already outdated. However, manufacturers adhere to regulatory standards, if only because openings in houses built in the Soviet era were made strictly according to these standard sizes.

According to GOST 6629–88, door leafs have two sizes in height:

• 2300 mm;
• 2000 mm.

The door width is defined in the following range:

• 600 mm;
• 700 mm;
• 800 mm;
• 900 mm;
• 1100 mm.

The apartments use interior doors with a width of 0.6–0.8 m, entrance doors - 0.9 m and double doors with a total width of 1.1 m. Small doors with a width of 60 cm are installed in storage rooms and other utility rooms. Bath and toilet - 70 cm, kitchen - 80 cm.

The sizes of door frames can be different depending on the material and model of the door block.

During the construction of typical apartment buildings, to this day, the dimensions of doorways are laid based on the specified GOST. In private construction, other options are possible, but here, too, most developers adhere to the above standards.

Measurement rules

To accurately display the dimensions of the installation hole in the wall, three measurements are taken - in height, width and depth. Professional measurers always draw a sketch showing the shape of the opening, its dimensions and other features (for example, the wall material, the presence of adjacent corners, etc.). This is necessary not only for the correct selection of the door block in size, but also for understanding the installation method. In the opening of a wooden wall or partition, fixation is carried out with self-tapping screws, in a concrete or brick wall - with anchor fasteners. For a plasterboard partition, a special installation method is provided. Plastic doors are installed on special brackets.

The doorway is measured in three directions - height, width and depth

In addition, you need to consider the condition of the floor and walls. Usually, doors are calculated and installed after finishing the wall plane.. But measurements can be taken earlier, for example, if the door is ordered in advance. It is important to consider all factors here. Suppose the wall has not yet been plastered, which means that in the future its thickness will increase by 1–1.5 cm on each side. If you order a door block without taking into account this thickening, the frame will not fit into the doorway and, as a result, you will have to redo either it or the wall.

The same applies to gender. Experienced measurers come only when the floor is completely ready, including the final finish (tile, linoleum, laminate, etc.). However, if the door is made to order, and the calculation of its dimensions is done in advance, when determining the height of the door block, an adjustment is made for the fact that the floor level will change.

If a standard door frame is installed during construction and redevelopment, the dimensions of the opening are adjusted to one or another standard size.

Today, the so-called hidden doors are very popular, the dimensions of which can be non-standard. Often such a door is made floor-to-ceiling high. In this case, when determining the vertical dimensions, one should take into account the fact that suspended structures (tension, rack or drywall) reduce the ceiling level by 10–15 cm.

Hidden doors in the entire height of the room are installed in a specially prepared opening

If you need to replace one door with another, the task is simplified. It is necessary to accurately measure the three main parameters of the doorway - width, height and depth. But this can be done only after dismantling the old door, or at least after removing the platbands.

Measurements are taken with a construction tape or other precise instrument, such as a laser ruler. Readings are recorded in millimeters.

A professional laser tape measure is used to quickly and accurately determine the required dimensions.

Width

The width of the opening is the distance between the side (vertical) surfaces of the opening in the wall. Measurements are made at three points - upper, lower and in the middle, if they are the same, then the opening is of a regular, rectangular shape. If there are discrepancies of more than 10 mm, this should be noted on the drawing.

If the difference in measurements is more than 10 mm, the minimum size is taken as the basis.

Height

Height is the distance between the "clean" floor and the top horizontal bar. It is measured from two sides (on the right and left sides). Ideally, the readings should coincide with an error of no more than 1 cm.

When measuring the height of the opening, take into account that it should not exceed the size of the canvas by more than 50-60 mm

Thickness

This is the actual thickness of the wall. For the opening, the term "depth" is more often used. It is important to understand that the thickness of the door frame cannot exceed the depth of the opening. But it can (and should) be less. In this case, the discrepancy is compensated by extensions, the width of which is calculated in advance in order to save material.

Features of measuring the doorway, depending on the design of the door

All doors installed in residential buildings are divided into two types:

• swing (on hinges);
• sliding (with upper suspension or floor guide).

Depending on the design, there are different requirements for the preparation of the doorway.

Swing doors are mounted directly inside the hole in the wall. Therefore, it is important to observe the exact dimensions of the opening. According to modern standards, the distance between the door frame and the walls should be within 2.5-3 cm around the entire perimeter (with the exception of the threshold).

Even 30 years ago, when polyurethane foam was not yet used in construction, the technological gap between the door block and the wall was filled with cement mortar. The clearance requirements were different. It was recommended to leave a gap of at least 50 mm so that the mortar can easily enter it. Such doors stood well for the first 3–5 years, after which the mortar began to crumble, and the door frame “walked with a shaker”. The door constantly had to be repaired at regular intervals. Mounting foam has eliminated these shortcomings, so now it is customary to leave a gap of 25-30 mm between the frame and the wall.

In the case of sliding doors, everything is different. The suspension mechanism is mounted on the wall, and the door leaf simply covers the opening. Accordingly, the requirements for the size of the opening are not so strict - the main thing is that the size of the hole in the wall does not exceed the size of the door leaf. Of greater importance is the form and quality of the finish. If in swing doors the edges of the opening are closed with platbands and extensions, then in sliding doors the wall remains in sight. Therefore, it is important to maintain the correct shape and angles of the hole in the wall.

The opening of sliding doors is framed with platbands and extensions

Facing the inside of the opening can be of two types:

• plaster (continuation of wall decoration);
• decorative panels made of fiberboard, MDF or plastic.

Finishing with plaster (or drywall) is performed before measuring the dimensions of the opening. The panels are installed after the door is installed, but when measuring, you need to take into account the thickness of the additional board.

Video: how to measure the opening under the door

Preparing an opening for installing an interior door

In order to bring the opening in line with the standard, you will need the following materials:

You will also need tools:

There are several mandatory requirements for the doorway that must be met before measurements.

How to reduce or expand the doorway

Sometimes the opening needs to be enlarged or reduced. As a rule, changes are needed in cases where a door with other dimensions is installed in place of the old one.

To increase the dimensions of the doorway, a puncher is used. The order of work is as follows:

1. First make the markup. On the wall with a pencil or marker, draw new boundaries of the opening.
2. Then carefully hollow out the wall to the desired shape. If the dimensions change by a small amount, you can do without a puncher by chipping concrete or masonry with a chisel and hammer. Sometimes the inner walls are made of foam blocks. In this case, the task is simplified - the blocks are easily sawn with a special hacksaw with a large tooth and a victorious soldering.

   The expansion of the doorway in a concrete or brick wall is carried out with a puncher with a special nozzle

3. After that, the inner surface of the opening is plastered. To do this, dilute the cement mortar. Throw it on the wall with a trowel and level it with a spatula.

   The leveling of the plaster is done with a rule, a wide spatula or a flat wooden lath.

When chiselling a wall, it is necessary to take precautions - use goggles and a respirator that protects the respiratory system from the ingress of a large amount of construction dust.

In panel houses built from load-bearing structures, it is strictly forbidden to hammer walls with a puncher. The only exceptions are interior partitions that do not carry loads. But only a specialist can determine this.

Violation of this restriction may lead to a violation of the rigidity of the structure as a whole. For example, there are times when chiselling a wall at one end of a house results in cracking double-glazed windows at the other end. This suggests that the deformation is transmitted throughout the building.

Reducing the size of the opening is carried out in different ways, depending on the material of the wall.

1. Use brickwork. The building blocks of the required sizes are selected and the wall is laid out on the cement mortar to the specified marks. In practice, most often the changes relate to the width of the opening, the height remains unchanged. But if the height still needs to be reduced, then ready-made cast reinforced concrete blocks or wooden beams are used for this. They are installed on bricks or deepened into the wall at a distance of at least 10–15 cm on each side.

   Reducing the opening is carried out using metal formwork and brickwork

2. With drywall. To do this, a frame of metal profiles is mounted and sheathed with one or two layers of gypsum fiber board. Such an increase inonly for sliding doors. Swing doors will not be able to stay on a thin layer of “dry plaster”.

   With the help of a drywall construction, a doorway of the required size is installed

3. With the help of wooden blocks. This option is applicable for lumber houses. To do this, you need to pick up a beam of the same thickness as the wall, and firmly fix it on long screws. If one bar is not enough, it is allowed to use several boards, the thickness of which in total will give the desired size. It is necessary to fasten wood blocks very carefully, because they will carry the entire load from the door frame and canvas.

Video: resizing a doorway

With self-measurement of the dimensions of the doorway, extreme accuracy and accuracy are needed. Mistakes result in additional financial losses. But if there is still no self-confidence, it is better to call a measurer from the company that supplies the doors. Today, most firms provide this service for free.