What to do if doorways are of non-standard size. Custom doors for non-standard openings

These are doors that are usually made individually to order. Such doors cost much more, and the wait for them takes longer. What types of non-standard doors there are and in what cases such doors are installed, we will analyze in this material.

Any non-standard door is made to order, but not every custom door is non-standard. Standard doors- these are doors whose leaves have generally accepted dimensions. In the door industry, door leaves with a width of 600, 700, 800 and 900 mm are considered standards. Some manufacturers have standard widths of 400 and 550 mm. The standard height of door leaves for all door manufacturers is 2,000 mm, and for some it is even 1,900 mm.

All door panels that do not meet these dimensions will be non-standard.

What are the sizes of custom doors?

Each manufacturer of interior doors has its own restrictions on the production of non-standard doors. Some make non-standard ones with 1 mm increments, others with only 50 or 100 mm increments. Some door manufacturers don't make custom doors at all.

The maximum height of interior doors can be 2,300 mm, and for some manufacturers it is 2600 mm or even 2700 mm. Minimum 1,800 mm. At the same time, a lot depends on the door model. Especially models with patterned glass are limited in possible non-standard options.

In our online door store, each door has information on the possible order sizes of non-standard doors in its card. In addition, on the website, by choosing not standard size door leaf and components, you can immediately see the cost of such doors and their production time. The price of non-standard doors in size is always 30-50% higher.

What types of non-standard doors are there?

Door shapes can be arched or radius (curved). There are two types. In the first case, the doorway looks like an arch, and door leaf on top with a rounding under this arch.

In the second version of arched doors, only the door leaf has a rounding in the form of an arch. in fact, this is such an interior door, top part the canvas of which is fixed in the opening to form an arch.

Custom doors in non-standard opening are actively in demand in new buildings, in country houses and cottages built according to the customer’s individual design, or in ancient pre-revolutionary houses, for which the architectural requirements were different. There are also frequent cases when non-standard openings are formed during redevelopment and overhaul directly by the current owners. In any case, arranging the interior of your home using Not standard designs at correct selection materials and sketches will be a feature of any structure.

Options for using non-standard openings with custom doors

Doors made to order, non-standard openings are very often ordered with filling not only the size of the width of the door leaf, but also a wider one space. It is not uncommon for property owners to want to cut out part of the wall above the opening to form a huge door panel from ceiling to floor. Also, our clients often include individuals who, in view of small size living space with door systems divide the room into two different zones.

Insulating external and interior walls loggia or balcony in multi-storey buildings, it is important to use additional premises for living space. This leads to a full or partial connection of the balcony with the kitchen or with another adjacent room.

Types of non-standard openings and interior doors

A non-standard interior door opening may have various sizes from one and a half meters to the width of an entire wall. The height of the structure, in particular pre-revolutionary buildings, or, conversely, modern structures, has the parameters of the ceiling height. For such openings order individual projects door segments with a height of two and a half meters or more. In the case of using suspended structures, it is necessary to install high-quality hinges and preferably in more than twice the quantity. This will reduce the level of liquid and deformation of a single or double leaf door structure. For modern interior design trends, modern artificial materials such as PVC, glass, and metal are used.

We provide a unique opportunity - any size of the door leaf in increments of 1 cm. This guarantees confidence that the doors of our factory will fit any doorway. The only limitation is the maximum possible dimensions of the canvases: 240x100cm.

Keep in mind that when changing sizes, the proportions of panels and pillar elements may change. For example, if the height of the Gloria model increases, the internal grille will remain the same size, but with a width of 60 cm, the Vienna model can only have one row of small panels.

But even in this case, there is a way out - you can supplement the height of the opening with a transom in the same style as the door model. With wide doorway can be installed swing door of two halves. But even in this case, there is a way out - you can supplement the height of the opening with a transom in the same style as the door model. If the doorway is wide, you can install a swing door made of two halves.
We approach each order individually. Our managers will definitely advise and advise the best option in one or another non-standard case.

Interior doors of non-standard size from the Onyx company

The company has been operating on the market since 1997. We use only proven materials and produce products using modern equipment from Germany. At the end of the day, all products meet international requirements.

Working with the Onyx company, the customer receives:

  • reliable products;
  • convenient production times;
  • durable material;
  • acceptable prices.

Onyx products are distinguished by their level of noise insulation and durability. Doors withstand mechanical damage and are durable. We have an individual approach to each client.

Order non-standard interior doors in St. Petersburg and Moscow

You can order any doors non-standard sizes in salons. Contact information is on the Where to buy? page.

Installing interior doors is not a very difficult, but responsible job that requires a very careful approach. Usually people trust its specialists, but what to do if finances do not allow you to use this service? Our article will come to your aid, which will tell you how to install non-standard interior doors with your own hands. But first, let's figure out what they are interior doors.

Types of doors for interior spaces

Depending on the design characteristics, the interior door can be:

  • swing, which has one or two doors. It is customary to install a door with one leaf in standard openings, but for a non-standard opening it makes more sense to take door leaves with two leaves;
  • folding, which is used to save space in the room. Depending on the design, they may have different size and represent an accordion or a book;
  • door-coupe, which looks like a structure of one or two doors that move along the wall along special guides. Installing such doors will cost more if you order this service from specialists, and the cost of the doors themselves is quite high;
  • the following category belongs to the group exclusive designs. These can be models made of one glass, stable models or structures that open in different sides.

Opening measurements

Below we describe the requirements that apply when the door leaf is installed for the first time and not changed.

The first thing you need to pay attention to is the walls. Work on installing the door structure should begin only after all construction activities have been completed. If the walls are not dry yet, then installed door may become warped during operation. The height of the threshold depends on the thickness of the floor covering and its type.

Before choosing interior design it is necessary to take measurements of the doorway, and if its size is standard, then it will not cause much difficulty. How do you install interior doors if they have a non-standard size? You can order such a door in workshops, but you need to be prepared that its price can be quite high. The work of installing such models is not much different from standard designs, but still has its own nuances.

The frame and door leaf should not fit tightly to each other; ideally, this distance should be 2 mm on the top side and 4 mm on the bottom side. If such gaps are missing, you will not be able to open or close the door. But you shouldn’t make them big either, otherwise the door will wobble and close poorly.

The next step is to install double interior doors. At this stage you have to choose its design and what it will be.

Both models have their advantages:

  • doorsliding suitable for small rooms, therefore, in order to save space, this is optimal solution. To install such doors, fastenings of a special design are required, along which the sliding of the panels will take place;
  • swing design more popular. Its installation can solve the problem of sound insulation, which a sliding model will never do. But the opening system will take up more usable space, so installation of such models is recommended in spacious rooms.

Having decided on the design of the door, it is necessary to take measurements of the opening and, if necessary, adjust the size required for such a model, reducing or increasing it. The work is not difficult, but you need to remember that the width of the opening should be approximately 90-110 mm larger than the width of the canvas.

The required size and width of the opening is determined by the following formula:

Shpr = 2*(Tdk+3+Shdp)+4. Where

  • Shpr is the width of the opening;
  • Tdk is the thickness of the timber;
  • Wdp is the width of the canvas.

If you intend to install a sliding model, then the opening must be prepared so that its width is 100 mm less than the door leaf.


Materials and tools

The next thing to do is prepare necessary set tools and accessories for work:

  • chisels;
  • hammer;
  • screwdrivers;
  • roulette;
  • hacksaw;
  • level;
  • circular and miter saw;
  • screwdriver;
  • perforator;
  • electric milling machine

From the accessories you will need:

  • door hinges;
  • lock with latches.

Dismantling old structures

The next step involves dismantling old door. to install interior models correctly, the size of which does not meet certain standards, it is necessary to remove the old ones. Dismantling work begins with the removal of old structures. Old box is also dismantled.

To remove the door, you need to carry out the following manipulations with it:

  • open the door 90 degrees and pull the door leaf up.
  • If the door is very old, then it will not be possible to quickly remove the panel. You must first swing it in different directions, gradually lifting it up until the canvas begins to be removed.

Once you have removed the door panel, you can proceed to the next step. Next up is the box. To dismantle it, you need to remove the solution holding it to the opening, and then break out its components using a pry bar or other tool.


At this stage, the box is prepared for installation in the doorway. The work of assembling it will not cause any difficulties; the main thing here is to fit the timber to required size.

To prevent this work from leading to a dead end, experts recommend using a formula that will help you find out the required size of the timber:

Shvk= 2*(Shd+3)+4. Where

  • Shvk is the width of the inside of the box;
  • Shd is the width of the door.

Without width and height indicator, this work installation of the door will not be possible.

Remember that the operation of the door depends on compliance with all the rules. The work of assembling the box is carried out according to the following principle:

  • apply the required length of the piece to the timber and cut it along the marked lines;
  • the box is designed to hold door designs, so the next thing to do is to cut the hinges into the beams;
  • All that remains is to connect all the parts and fasten them.

Installing a door frame

Installation of the box takes place in several stages:

  • the box is installed using building level to avoid distortions. It is also recommended to prepare wedges so that the box does not move during fastening;
  • in addition, make sure that the beams are vertical so that the frame does not extend beyond the doorway;
  • after it is installed and adjusted horizontally and vertically, it must be fixed using wedges;
  • holes are drilled in the box for future screws and marks are made on the wall;
  • remove the box and prepare holes in the wall according to the marks;
  • plugs are installed in these holes and the box is put in place, after which it is fastened with self-tapping screws;
  • The cracks are filled with foam.

As you can see, the work of installing a door frame is not difficult, the main thing is to follow the necessary algorithm of actions.


Installing non-standard doors involves opening and closing doors in different directions. Therefore, before inserting hinges, you need to decide on this point and choose which way your doors will open.

Once you decide on this issue, you can start inserting the loops. Work begins with preparing holes on the side of the door, bottom and top. The main parameter when marking holes is the height. Ideally, the height of the bottom hole from the floor line should be 20-25 cm, and the height from the top edge of the door should be 15-20 cm.

If your door has a standard size, then two hinges will be enough for fastening. If the door size is large and the weight is massive, then it is better to add another attachment point, then the hangers will support even the largest and most massive structure.

After applying the markings, check them again for correctness so that you don’t have to redo the work. In addition, the height at which the hinges are located must correspond to the height of the hinges marked on the box. Now you can fasten the hinges with self-tapping screws.

Door hanging and trim installation

After installing the hinges, they begin to hang the doors. As soon as you hang it, you can start installing the trim.

Their installation can be done in two ways:

  • with corners cut at 45 degrees;
  • with 90 degree corners.

The work of installing platbands looks like this:

  • When the door leaf is installed, it is necessary to close the junction of the frame and the wall. Platbands are used for these purposes. The work of installing them is not very difficult. The required size of the frames can be found out by measuring the tray from the floor to the intersection of the top beam of the box. This will be the height of the casing;
  • The resulting height is marked on the trim strip and the required size is cut off. If the platbands are installed at an angle of 45 degrees, then another 3 mm must be added to the resulting segment. If you install platbands at an angle of 90 degrees, then the height of the segment increases by the width of the installed platbands;
  • as soon as the required size of the platband has been measured, it is necessary to trim it;
  • It is recommended to install awnings from the side of the awnings, thereby decorating the door leaf;
  • The remaining parts of the canopies are prepared according to the same principle: I mark them and cut them off. Please note that the height parameter may not correspond to two canopy slats; it is better to take measurements for each platband separately.

Installing such a door uses a different operating algorithm:

  • rollers are installed on the door leaf;

  • the height at which the guide profile will be installed is measured;
  • at this level it is necessary to fix the block and the guide profile on it;
  • install the door into the guide profile;
  • after such a door has been installed, the guide profile must be covered with a decorative strip.

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Most manufacturers of entrance doors make them in accordance with the most common openings of modern apartment buildings The exception most often is country houses, where customers prepare individual openings in accordance with their architecture.

It happens that the size of the doorway does not meet the standards followed by the manufacturer. In such cases, find suitable option in the store it becomes impossible. Then the owner starts looking to order. What pitfalls might he encounter?

Pros and cons of custom doors

Let's start with the positives. Today you can be a picky customer and confidently order individual design, especially if we are talking about a mansion in old style. You will find “the right” color and harmonious fittings that will fit perfectly into your interior. Don't you know that a chic door is business card at home, because it will, like a magnet, attract the admiring glances of guests.

It is easy to see that the disadvantage will be production time and price. It consists of certain acquisition costs by the manufacturer special materials and increased labor costs for custom orders.

Non-standard opening - a solvable problem

Sometimes apartment owners encounter difficulties when measuring the dimensions of the entrance. Errors occur when people start measuring from boards covered with plaster. The entrance door must be attached to a solid base.

The structural features of the house can affect performance characteristics doors. And here you will need the skill of a measurement engineer to correctly calculate the parameters. Width, opening angle, safety, installation method and weight of an entrance door of non-standard sizes, everything in our company is discussed with the client at the measurement stage.

Eat Alternative option- expand or narrow the doorway. If there is already an existing decorative finishing professional master will definitely warn you about the consequences of a particular choice, and also recommend the most suitable materials. We can offer installation of decorative trims and slopes in combination with your chosen door finish.

Arched doors

Arched openings appeared in Ancient Greece. The Romans adopted this technology and spread it to Europe. Arches were at the entrance to temples and palaces of emperors.

The transom is made of the same material as the door, sometimes from glass, stained glass and others decorative elements. Arched doors fit well into interiors classic styles(Empire, Baroque, Rococo, Classicism). Here you can find input arched doors custom-made by Wippro (Austria) and OpenGallery (Israel), as well as interior design by Mame (Germany).

You can also encounter non-standard openings indoors. In order to separate one living area of ​​a house or apartment from another, you can install a light glass partition. Thanks to sliding mechanisms, in a few seconds you can delimit your living space.

In conclusion

Thus, a non-standard door can be both a creative idea and forced necessity. In our company you can order non-standard entrance doors(Wippro, OpenGallery) and Mame interior doors.
Whatever the task, with our doors and professional approach to every project - you can always solve it beautifully.