Door frame: manufacturing materials, parameters, design features. Door frame for interior doors Interior door frame what

The strength of the entire structure, as well as the duration of its operation, depends on the quality of the boat. Usually the door frame and door leaf are made from the same material. The main load of the opening sash falls on the frame, and you cannot save on purchasing a cheap window, otherwise the design will be short-lived.

The frame is part of the door block. It is used in models of the type, the sash is suspended from hinges. Install the entrance or interior door frame into the opening on the wall. Most popular material for making boxes is considered array. Cheaper option - MDF and other combinations of wood waste. Lutki may have threaded grooves on the end intended for fixing and.

The hidden door frame is hidden when installed in the wall; it is made of aluminum. Even the hinges remain invisible.

The door frame design involves the use of three or four elements. U-shaped boats without a threshold consist of two posts connected at the top by a crossbar. In a full-fledged boat, the fourth element is the threshold. Such frames are required when installing a door block in a bathroom or at the entrance to a room.

Boxes are usually sold as a set with and. Additional items help to refine doorway. Device Ludki differ according to the following characteristics:

• with or without extras;
• with telescopic platbands or strips without grooves;
• with or without a seal;
• with overhead or mortise fittings.

A box with telescopic handles and also equipped with a seal is considered convenient to install and use.

Box sizes

The consumer is offered different sizes of door frames, depending on the location of their installation. Dimensions are maintained according to the standard. From manufacturers from different countries it is different. The most common standard door frame size interior doors domestic manufacturer coincides with products from Finland, Italy and a number of other European countries.

By standard size is:

• sash width – 55, 60, 70, 80 and 90 cm;
• sash height – 190, 200 and 210 cm;
• box thickness – from 2 to 7.5 cm.

This thickness of the interior door frame was determined for good reason. The size variation is due to different wall parameters.

Considered optimal depth door frame of an interior door - 7.5 cm. The frame is suitable for walls made of plasterboard or brick. For thick partitions made of other materials, boxes 10 cm wide are produced. There are imported boxes with a depth of up to 20.5 cm.

The total height and width of the door frame of the interior door is determined taking into account the size of the leaf. The thickness of the onion is added to the dimensions. It will be clearer with an example. Let's take a canvas 60*200 cm and a frame 7.5 cm thick. As a result of the calculations, the total width of the door with the frame will be 67.5 cm, and the height will be 207.5 cm.

The size table will help you determine the dimensions of the interior door frame.

Types of boxes

There are different types of door frames based on design, material and other parameters. A boat consisting of three or four elements has the following connection methods racks with crossbar:

• Spiked. The door frame timber is joined using a tongue-and-groove lock. The method is complex, but reliable.

• Baguette. The edges of the timber are cut at an angle of 45º. The elements are connected using hardware.

• Right angle. Before joining at an angle of 90°, grooves are cut at the end of the beam, removing part of the quarter.

Of all the options, the design of a door frame with a right angle is considered simple.

The structure of the bows varies according to the type of fastening of extensions and platbands:

• Simple goes without grooves. Extensions and trims are fixed with glue, nails or self-tapping screws.

• Telescopic The door frame is equipped with special grooves into which the extensions and trims are attached.

• Monoblock. Innovative design. The box and platbands are one whole.

The advantage of the monoblock telescopic box is that it is fully equipped. You don’t have to buy additional trims and platbands separately.

By design There are three types of onions:

• Encompassing. The structure consists of a frame, extensions and platbands. The door frame is supplied with a seal. Cheap options may not have extras. The planks will have to be purchased separately.
• End The boat is designed for mounting on a special metal carcass. Used in arranging openings thin walls from plasterboard.
• Corner. Ludka is considered universal. The frame with the platband is connected into a single structure. During installation, a seal must be installed.

Separately, it is worth considering the hidden door frame, which is completely hidden along with the hinges in the wall during installation. The entire block is made of aluminum and comes in two types:

• Ready box. The door has a laminated, enameled or other coating. Installation of mirrors is allowed.
• Boat for finishing. The canvas is covered with a layer of primer. After installing the block, it is subject to further finishing with wallpaper, painting or cladding with other materials.

The handles on the sash are also made hidden. Usually it is a slot on the canvas or a magnetic device.

Materials

The pots differ according to the material they are made of:

• The most common, inexpensive and durable are considered wooden door frames. During installation, products made from untreated timber are impregnated with an antiseptic and opened with varnish or paint. For a budget option, boxes are used solid pine. Manufacturing technology from spliced ​​timber allows you to get rid of wood defects. The frame elements are glued together from small blanks.

• Door frames are made by pressing wood waste MDF, fiberboard and HDF. Frames are covered with laminate, veneer and other materials that protect the product from moisture and also make it attractive. Layered composites have excellent characteristics. The material alternates layers of wood waste with plastic.

• Special aluminum box for glass door comes with a seal and a set of corners. Ludka is installed in glass openings of offices and other organizations. Fixation occurs with pressure plates on the goujons.

Metal door blocks usually come with a seal, trim and fittings. The products are installed at the entrance to the building or individual offices of the organization.

How many components are needed for the opening?

When installing the door block, you will definitely need components. The aluminum door frame goes on sale with mounting plates, a seal, and a set of corners.

When purchasing a door frame for an interior door, a design is selected taking into account the installation location. Frames with a threshold are placed in the bathroom, at the entrance, or, if the height of the opening requires (3 blanks are required for one door). The U-shaped box is mounted in ordinary interior partitions (for one door you need 2.5 pieces).

If the door frame is narrow, the projections of a thick wall are hidden with extensions. The number of boards is calculated based on the size of the protrusion.

You will need hinges from the fittings. For a light sash, 2 elements are enough, and for a heavy sash you can put 3 pieces. Invoices or hidden hinges. By design they are one-piece.

A lock and a peephole are installed on the front door. Although, the last element is optional. Any door is equipped with two handles, and a latch is attached to the interior door leaf.

The basis of a door set of interior doors is the door frame. The performance properties of the doors largely depend on what it is, what it consists of and how it is installed.

What is a door frame?

Door frame - part of the door block, which is attached to the doorway, and already to the frame door hinges the door leaf is attached. This door element is called a frame because with the threshold it forms a rectangle into which the door leaf is inserted. Used to install swing doors.

Door frame in a doorway.

A standard door frame for a single-leaf swing interior door without a threshold consists of two and a half sticks (one stick on the right, one stick on the left and at the top half a stick - a crossbar). A standard door frame stick has dimensions: 70 mm width, 30 mm thickness and 2100 mm height. Each manufacturer's sizes may vary slightly.

When measuring doorways To order doors of the required width, it is important to know exact dimensions boxes to determine the width of the door block along with the frame and thereby know whether it will fit door block into the opening and, if so, how much space will be left on the sides. In addition, the width of the door frame determines whether additional additions will be required or not.

Sectional view of door frame pillar

Telescopic and simple door frame

Based on the method of attaching the platbands to the door frame, a distinction is made between a simple frame and a telescopic one. The telescopic door frame has a slot for inserting a telescopic platband into it. Simple platbands are attached to a simple door frame using special nails without a head or glue.

What material is the door frame made of?

The coating of the door frame is almost always the same as the coating of the door leaf (veneer, laminate, eco-veneer, PVC), but the base can be of two types: homogeneous and combined. A homogeneous box is a box consisting of one material, usually solid pine or MDF.

In our online door store, solid wood frames are supplied with doors from the "Ocean" factory and economy-class doors for painting "Canada". MDF frames - almost all laminated doors.

The combined material of the box necessarily includes MDF and some other material, for example, thick plywood, chipboard, solid wood, etc. This method of making the box gives it rigidity, and also ensures the box's resistance to deformation from the effects of temperature and moisture.

Door frame seal

This is a soft element in the form of an overlay, which is attached along the entire perimeter of the door frame - in the place where the door leaf adjoins the frame. The seal provides sound insulation, thermal insulation, and prevents the penetration of odors. In addition, the door closes softly and silently and does not rattle against the frame.

Embedded fittings

The door frame is mainly sold in the form of sticks (blanks), which are sawn by a craftsman at the place where the doors are installed. right size and at the desired angle, they cut the hinges and the strike plate for the latch into the box.

But doors with factory-installed fittings are also sold. The hinges and striker are already cut into the box, and the box itself is sawn to the desired angle and size. Such doors with embedded fittings include almost all doors with a rebate (otherwise they are called “Finnish doors”). Our online store of rebated doors features doors from the manufacturers "Krasnoderevshchik" and "Mario Riolli".

Threshold for interior door

This is part of the door frame (lower crossbar) which serves to tightly close the door, which provides significant sound and heat insulation. In a residential area, provision of these conditions is required mainly only for the bathroom. That is why it is customary to install thresholds only on doors to the bathroom and toilet.

Although modern tendencies renovations show that many do not install thresholds in the bathroom, preferring simplicity and convenience. As an alternative, you can use an automatic threshold, which is built into the door leaf and lowers when the doors are closed.

Door frame installation

The door frame is installed in such a way that the gap between the door leaf and the frame at the top and sides is uniform and is no more than 3 mm, and at the bottom between the door leaf and the floor is 8-10 mm, depending on the flatness of the floor. The door should not close on its own when in the open position.

The frame can be attached to the doorway in three ways:

First way- the box is fastened with dowels in three places - in the places where the hinges are attached and under the striker plate. This is a more aesthetic method of fastening, when all fastening points are hidden under the fittings.

Second way- the box is fastened with dowels in six places, three on each side. The box is drilled right through from the front side, and after installation, the holes are closed with plugs, similar to how this is done when assembling cabinet furniture. This method of fastening is more reliable and durable.

Third way fastening the door frame - the frame is attached using iron plates (canopies). The plates are attached to the inside of the frame in six or more places, and then these iron plates are attached to the doorway. This method of fastening combines the advantages of the first and second methods, but is more labor-intensive and more expensive in installation costs.

If the box comes with accessories, it is better to install them together with the box. The box for the extensions must have a groove (recess) into which the extensions are inserted. Otherwise, when installing the extensions, the master will have to prepare the box for the extension, which will cost additional money.

The door frame is a load-bearing base on which the hinges are attached and the lock opening is cut into. In addition to one decorative function, the frame performs a protective function and largely determines the geometry of the door, which is why it is so important to choose it correctly. Box and entrance doors often sold together - to fit a specific opening, but can also be made separately. If you have suitable material (pine or other pine needles), you can make the box yourself.

Types of door frames

They are not limited to just one design. No matter how similar they are, there are quite a few basic types of door frames:

Telescopic design

Otherwise, this type of door frame is called a Euro frame. The telescopic box received this name due to the presence of a groove. It consists of wooden planks, each of which has its own groove determined by the design; such a frame allows you to install an additional frame without additional connection, which greatly facilitates the task. The telescopic box allows you to significantly save time on installing it yourself, since liquid nails are used instead of screws and self-tapping screws.

Some telescopic boxes have an additional soundproofing layer and sealing rubber bands. This frame is ideal for an interior door.

Casing box

It consists of 4 main elements: a top, a window sill and two sidewalls. When installing the door frame, the window sill is not used. The casing box is often used in the construction of a log house. During installation, a gap of 4-6 mm remains between the frame elements and the doorway. It is necessary for further shrinkage of the log house; later, after drying and shrinkage, the gap is filled with insulation and finishing materials. The most difficult thing in calculating the casing is to calculate and form the locks - the junction of the top and the sidewalls.

Door frame with threshold

We can say that the door threshold is a long-forgotten past, but everything is not so simple. A box with a threshold is not only an obstacle and a step, it is one of the main effective elements of a doorway, which has the following main advantages: a natural seal (prevents the outflow of oxygen, makes up important element sound insulation), prevents the penetration of smoke, protects the room from dust and drafts.

Most often, do-it-yourself door frames with a threshold are installed in the bathroom, especially if, thanks to the tiles, the floor level in the bathroom is higher than in another room, in which case a frame with a threshold can save the parquet from water ingress.

Extension on a two-door door frame

One of the areas of application of a two-door frame is thick-walled buildings. If the width of the walls in the room exceeds 30 cm, then in this case an extension is used - a special element of the box. In fact, the extension is a plank, the width of which is equal to the width of the opening, and the extension is attached to the frame itself and the trim. The extension is made to match the color of the box material and is its continuation. The material itself may differ, but more often the same is used, be it MDF or chipboard. The extension can be attached to the door frame using a special groove, or without it, in this case liquid nails or furniture screws are used.

Hidden door frame

Doors with hidden box Most often used in office buildings, entertainment complexes and modern design. The box is mounted according to the usual rules, but if the platband, extension and threshold are not used, ordinary hinges are also replaced with hidden ones - they are already used quite often by many well-known manufacturers doors. It is painted over or puttied to match the color of the wall and does not stand out in any way; visually the door just hangs on the wall.

When purchasing such a door frame, it is worth checking whether the material can withstand painting and whether the frame will “make friends” with putty and primer.

Door frame material

The frame must support the weight of the door leaf along with the fittings. Entrance doors, however, have different weight, the additional weight that a person creates when opening the door must also be taken into account. When designing and creating boxes, the following basic materials are most often used:

Door frame installation

You can install the door frame yourself. The most difficult and responsible process is determining the size of the future box. Openings are different, as are entrance doors, although single standard and exists, but in private housing construction it is conveniently ignored. Installing the box yourself includes the following steps:

• Preparation of the structure: checking dimensions, eliminating defects and distortions (you need to know the exact width, height, thickness of the walls, distance to the nearest wall, corner);
• Drilling holes in the wall for fastening the door frame;
• Checking the door tilt level (otherwise spontaneous opening is possible);
• Direct installation of the box and its fixation;
• Checking parameters;
• Installation of the door leaf.

An example of creating a box with a threshold in the following video:

DIY door frame

The box can be assembled without special tool with your own hands, this way you can save a considerable amount of money, and besides, you can create a unique door frame, which has its own decor and perhaps even carvings. For this you will need the following materials: a jigsaw, a screwdriver, nails and screws, varnish, paint, film, hinges and the wooden slats themselves.

You can choose any material, preferably coniferous wood: pine, spruce, etc.

Do-it-yourself door frame assembly includes the following processes:

• The first step is to measure the length and width of the wooden slats or beams;
• Then careful grinding of the workpieces and their processing will be required;
• After processing the material, you can attach door hinges to pre-designated areas.
• Then the box must be assembled according to the specified parameters;
• After the assembly process, you need to attach the door frame to the door and estimate all the gaps, then fit the frame under the door leaf as tightly as possible.

Further finishing options depend only on the imagination and needs of the owner of the apartment or house.

The box beam, with which the opening is framed, is one of the components of the door. It is clear that when the frame of the canvas is aluminum, steel or plastic, then the box is made of the same materials.

Concerning interior options, then the box for sliding doors, as well as for swinging and swinging canvases, can be made not only from solid wood, but also from various artificially created materials. We will talk further about what types of interior door frames there are, and the video in this article will serve as a visual aid to the presented material.

Everyone knows that the highest value doors are made of solid wood. It is clear that exotic goods brought from the tropics become more expensive due to delivery, although their quality is also excellent. But what about the inexpensive wood that grows in our latitudes: spruce, pine, linden, birch?

• From this list, the door frame can only be made from pine. The rest of the wood cracks and chips easily, or has many knots and other defects. It is the knots in wood that are the biggest problem for carpentry - and this is not at all a matter of the beauty of the design.
• To make a box, you need to cut a solid beam longitudinally. Any defects on it can be masked using putty, but this cannot rid the tree of internal tension that arose in this zone.
• The tension in the timber contributes to the deformation of the finished joinery product, which manifests itself already during operation. To get such chic doors as in the picture below, the wood must be carefully sorted.

In nature, it is not very often found without any defects. Hence high price“extra” grade array, which has the necessary quality and appearance. The price of the product depends not only on the grade, but also on the degree of value of the breed.

Traditionally, beech, oak, and ash are used for the manufacture of high-quality luxury doors. Species with reddish hues are also held in high esteem: cherry, walnut, alder, eucalyptus, which are usually called “mahogany.”

Spliced ​​timber

The larger the timber, the greater the likelihood of it having natural defects. Therefore, interior door frames are often made from spliced ​​timber.

Note! To make it, the boards are cut into small-section bars and defective areas are removed. First, the side edges are glued together under a press, producing short fragments. Then their ends are studded and glued along their length. The result is the strongest laminated veneer lumber without any defects in the mass.

Glued slabs are also produced using the same technology ( furniture panels), from which the door trim elements are cut out and panels are made. For the manufacture of panel door elements, cheaper wood slabs are used.

For gluing them, defective wood is also used, since the slab is lined with hard fiberboard or plywood on both sides.

MDF and HDF

If the spliced ​​timber and slabs are, although not integral in mass, still natural wood, then materials made from wood flour, sawdust and wood chips can be largely classified as composites.

These are medium and high density boards, abbreviated as MDF and HDF. They have a fairly large range of sizes, including thickness, which makes it possible to produce absolutely any parts of door leaves and frames.

So:

• Considering that the standard thickness of box timber is at least 30 mm. In its manufacture, slabs with appropriate thickness are used. Custom boxes for massive doors, can also be made from sheets of greater thickness (up to 60 mm).
• MDF is processed in the same way as ordinary wood, and is used not only in the manufacture of interior doors, but also street doors (see). To obtain a material that is resistant to moisture, the slabs are impregnated with a special primer during the production process.
• It must be said that due to its density and the presence of polymer binders, MDF is much less hygroscopic than most types of wood. Its dense and homogeneous mass allows deep profiling and milling to be carried out without problems - operations that are essential for the production of box timber.

So, when choosing an option for your home, do not forget about the advantages of this material. The main one is stability with respect to changes in temperature indoors or outdoors, due to which both individual door parts and the fasteners installed on them are held more reliably than on solid wood.

Laminated composites

A composite is a tandem of two or more types of raw materials or materials that can be mixed in bulk, like MDF, or have a layer-by-layer structure. The name “sandwich” is firmly attached to the last option, due to the great similarity with the “masterpiece” of the food industry of the same name.

Note! The surfaces of door elements made from composite materials, lined with artificial veneer, which perfectly imitates the natural texture of wood. It is a high-strength plastic (CPL), which manufacturers call eco-veneer.

The composites themselves can consist of different layers: including interlayers made of inexpensive solid wood, plywood, or the same MDF - which is what we see in the photo below.

So:

• The multilayer structure provides this material with the necessary strength with a large margin. This is not to say that this is a cheaper option - boxed timber made from eco-veneer is approximately in the same price niche as products made from MDF. Cost - approximately 300 rubles. for one beam.
• This is even more expensive than the cost of timber made from unpainted pine, but it does not require facial finishing. Typically, the length of the rack is 2150 mm: the U-shaped box consists of three bars, in the O-shaped one, a threshold is also added to them.
• It is very convenient that when we purchase a door frame, we can purchase the timber not as a set, but separately. In any case, when a double-leaf door is installed, you do not have to buy two sets of frames; one is enough.
• Accordingly, additional strips are purchased individually, which allow you to increase the width of the box, and platbands (see), with the help of which the outer surfaces of the opening are framed.

Eco-veneer coating makes these parts not only very aesthetically pleasing, but also protects them from accidental mechanical damage, to which solid wood carpentry is especially susceptible.

Features of door frames

We discussed what door frames are made of. Further instructions concern design features box timber, its dimensions and installation. Like any molded product, it has three main parameters. What are they justified by?

Parameters of box timber

In cross-section, this width, which is tied to the thickness of the wall or partition, will provide the product with the necessary load-bearing capacity. For standard interior doors, these dimensions are 30*70 mm and 35*75 mm.

If you look carefully at the drawings given in the 1988 standard No. 6629, you will see that the width of the door leaf is everywhere 70 mm less than the opening. If the door is double-leaf, this difference is 72 mm.

So:

• This distance consists of the thickness of the two pillars, plus the gaps in the door ledge on both sides. These gaps are usually adjusted during the installation of the box, because in walls, especially brick ones, deviations from the nominal dimensions of the openings can be 5-6 mm.
• The minimum box width corresponds to the minimum thickness interior partition- 65 mm. As a rule, such partitions are made of brick or plasterboard structures.
• At maximum, a standard box beam will have a width of 75 mm. In openings of thicker walls, it is necessary to either install plaster slopes or cover the jambs with additional strips. It looks schematically, as shown in the pictures below.

The length of the stands, of which there are two in the set, corresponds with a small margin standard height opening (2080 or 2150 mm). The length of the cross member is usually exactly half the length of the box post. If the door is one-and-a-half or two-leaf, you can simply buy three posts.

Profile configuration

In its shape, the cross-section of a traditional box beam resembles the letter “L”. The only difference is that its protruding part can have a simple geometric contour, or be profiled.

Boxes intended for installation of a conventional platband do not have longitudinal grooves on the side edges. But there are options designed for the installation of telescopic platbands, the shelves of which are inserted into grooves on the box.

All these options are presented in the examples below:

The box beam intended for... has a slightly different configuration. It is also telescopic, but has a different thickness and width, since each stand here is mounted from two beams connected by an additional strip with sealing strips glued to it.

Frame for sliding doors

The bar is placed on one side only. On the other hand, the beams are not connected to each other at all, since the doors must fit into the internal cavity of the partition. Instead of adding, it is inserted into the internal grooves brush seal. What this whole structure looks like can be clearly seen in the above picture.

And the last option is a new product on the carpentry market. This is a box beam that is mounted into a cavity in the wall, and allows you to install the door flush with its surface. In this case, there is no need to frame the opening with platbands, since no joints will be visible. Thus, by designing the door in the same style as the wall, it can be made almost invisible.

You can see for yourself - only a small gap in the vestibule, yes door knob indicate the presence of an opening. On such a box, the canvas is hung only on. Typically, such doors are sold complete with fittings and a frame, which consists of wooden block and profile aluminum trim.

The nuances of installing a traditional box

Manufacturers often take care of the consumer by applying notches and notches to the door leaves, making it as easy as possible to assemble with your own hands, and with a minimum set of tools. This is all the more convenient, since these doors are usually equipped with fittings.

However, each medal also has back side. You may not be satisfied with the hinges offered by the manufacturer, and you won’t be able to install others there - so, when buying doors, you need to pay attention to these nuances.

By the way, the diagram above clearly shows at which points door hinges need to be installed. On it you can see where and what gaps should be provided when installing the door block.

The box can be assembled in two ways:

1. The side elements are cut out first., A cross beam fits between them, in special grooves.
2. First, cut out the shorter cross member, which is then laid on top of the ends of the racks.

To correctly cut out the parts of the box, you first need to accurately determine the installation diagram. The second option is easier to implement, since there is no need to cut tongues and grooves at the ends of the parts.

The block elements are secured to the ends of the opening using dowels or anchors - they are recessed into the mounting holes and covered with decorative plugs. When the door frame is securely fixed, the gaps between it and the wall are filled with foam, and they are hidden from the outside by installing platbands.

Wide selection of interior doors offered modern manufacturers– by color, material, texture – a big advantage when choosing suitable model. But one problem often arises: choosing the right box size. Measuring a doorway is not as simple as it seems, and assessing the properties of a product also has its own subtleties.

Peculiarities

The majority of doors are made standard, but it is important to take into account that there are no clearly prescribed frame sizes for interior passages. It is recommended to select the box in such a way that the entire structure can fit harmoniously into the opening. In terms of height and width, it is recommended to take a set slightly (within three centimeters) inferior to the opening.

The largest standard box size in width is 90 centimeters, but you can’t find such a model in every manufacturer’s catalog. Indeed, in multi-storey and modern private houses, openings of a suitable size are very rare. The widest doors can be found in “Stalinist” buildings, as well as in large office centers.

Door frames and leaves produced abroad are made to completely different standards, so you need to choose them carefully!

Frames for doors that do not have thresholds are made in the shape of the letter P, from a pair wooden racks, connected at the top by a crossbar. The advantage of such solutions is their compatibility with sashes of very different heights and their low cost. Rectangular frames, which initially have a threshold, are needed by those who want to install the entire structure as simply and quickly as possible. It is recommended to choose telescopic trims, because products with them will be easier to rearrange during a major overhaul.

Dimensions

The parameters of a particular room are also taken into account - how large it is, what it is intended for. The most common type has dimensions of 88x205 cm in two planes, with a width of 80 cm - such blocks are suitable for both apartments and offices. For kitchen openings you should use boxes measuring 65x200 cm, and for a bathroom or combined toilet 60x200 cm. Even if the size of the entrance to such rooms allows, many people still choose narrow boxes, making up for the missing centimeters by adding extras.

Width

Typical width ranges from 50 to 90 centimeters. The parameters of a particular room are taken into account - how large it is, what it is intended for. It is customary to make the widest openings in living rooms so that all guests can pass through unhindered. The gap between the walls is 122 cm, and the door frame is then 119 centimeters wide and 193 centimeters high.

For multi-leaf doors, doors of 55 centimeters are used, for single-leaf doors (in small-sized housing) - 80 or 90 centimeters. It is not recommended to do even less, no matter how cramped it will be, because sometimes you will have to take out or bring in furniture. Please note: standard French single doors are 68, 79 or 89 centimeters wide.

Height

The height of doors for interroom transitions most often ranges from 195 to 207 cm. In Russia, Finland, Spain and Italy, structures with a height of 190, 200 and 210 centimeters are produced.

Thickness

This parameter fluctuates different designs from 2 to 7.5 centimeters. There is nothing surprising here - different thicknesses are optimal for different walls. If they are made of plasterboard or are brickwork, it is best to buy boxes with a thickness of 75 millimeters. It will be easier for you to mount them, and if there is a slight difference with the actual size, It won’t be difficult to eliminate it with extras.

How to choose?

The easiest way is to buy boards and bars 5-6 centimeters thick and 10 centimeters wide to create a wooden interior door. But it would be better to spend a little extra time and choose a beam whose thickness does not differ by a millimeter from the thickness of the door.

In addition to the size of the interior door, you need to choose the material for it. Larch and linden are considered the best varieties wood, pine is just acceptable. But alder, hornbeam, and beech are bad because they often warp when dry or excessively humid. Oak is more reliable in this regard, but high prices prevent its widespread use.

Steel and plastic structures can be used as door frames at the entrance, or in bathrooms, toilets and toilets. Always evaluate and color solutions, and the type of finish, and its texture, and the type of threshold. When assessing suitable dimensions, you need to consider whether an automatic door closer will be used or not. When it is known that the floors have not yet been laid, an adjustment is made for the height of the screed and the characteristics of the coating itself, the limitations associated with the use of water and infrared heated floors cannot be ignored.

In addition to the opening parameters, the width of the box should also be adjusted to the height of the ceilings. Quite often a situation arises when, for design reasons, it is impossible to use the desired door. When installing the box on plasterboard walls, you need to have a diagram of the location of the supporting frame so that you do not need to suddenly move part of the wall.

When calculating, the width of the sash increases by double the thickness of the timber (do not forget that the cross-section of the box is L-shaped). Take into account the part of the sealing material extending beyond the contour of the opening (it can be from 30 cm and have a height of 2.5-3 centimeters), and the supporting surface under the beams. By adding another 20-25 millimeters of clearance for installing the box, compare the resulting figure with the actual dimensions of the passage. The same principles will help to calculate the final height (you also need to introduce a threshold correction for it).

Expanding the opening if necessary is better than artificially narrowing it with various designs: when installed with extensions, a door will not stand as stable as one placed close to the wall. And more heat will be lost.

To ensure that the parameters are measured as accurately and quickly as possible, always use a level, preferably a laser one. When the depth of the opening is 10% or more greater than the depth of the product, serious problems can arise. Then you need to either install slopes, or (which is less professional), saw the timber along the length, reducing its thickness, but no more than 1-1.5 centimeters.

Please note that you should only take on such work experienced performers with high-quality instruments. If the exact width and height of the opening cannot be determined due to its complex configuration, measurements must be taken in at least three places for each plane. The arithmetic mean of the results obtained is taken as the final value.

When you need to complete a door frame with accessories, it is better to take plastic elements, they are the most flexible and make it easy to adjust to major surfaces. Please note: any additional element must have the same color and texture as the rest of the structure. To make fewer cuts, it is better to cover the gaps separating the opening from the frame with wide platbands. Choosing the size that is right for you will not be particularly difficult in any specialized store.

Don't buy door frames made from a combination different materials- they inevitably differ physical properties, and therefore warping may soon occur, the door will be harder to close. Important: when old door is still standing, distances are measured from the central part of the platbands.

In apartments commissioned before 1991, interior doors with frames measuring 108 millimeters are used; if the partition is 10 centimeters thick, you need to install a box 120 millimeters thick. Attention: according to current regulatory requirements in any room where 16 or more people can be present at the same time, you can only use doors from 1.2 meters wide.

Installation

Installation of the door frame is carried out using wedges and beams, an electric cutter, a hacksaw, a miter box, and a drill. Additionally required polyurethane foam and a pencil, a building level, a knife with a thin pointed cutting edge, screws and nails with miniature heads. When the installation of the box begins, the slopes should already be checked in at least three places, both vertically and horizontally. A deviation of five centimeters or more is unacceptable, it requires additional alignment. Do not forget to maintain a technological gap to the floor surface, it is 1.5 cm.