How to cut a door from mdf in height. cut the bottom of the door

After installing new carpet, parquet or laminate, it may be difficult to open and close the door. This means that the door must be cut to length. This often happens when you buy a new one. beautiful door. If the difference in height is not very large, you can solve the problem by removing some material from the bottom of the door by planing or grinding. But if the difference is large, then it becomes necessary to cut off part of the door.

What you need to know before you get started

If you have a hollow door, then you can not cut too much from the bottom. These doors are just wooden frame with two fibreboards attached to it, and they cannot be cut more than 1 cm; if you have a hardboard or laminated board door, you can remove a little more. There are two types of interior doors: a panel (smooth) door and a door with overlap. The panel door is completely recessed into the door frame and mounted on hinges. The overlapped door is partially recessed into the door frame, and its edge is outside the door frame. Doors of this type are mounted on cylindrical hinges, which allow the door to be raised by removing it from the door frame.
Measurement

If you want to replace old door, then first of all it is necessary to measure the size of the doorway. To do this, you can easily use a carpenter's ruler, which allows you to accurately measure. First you need to measure the height and then the width at the top and bottom of the frame. If there is a difference in width, take the size of the wider part. Add a 2mm gap at the top between the door and the frame. If you are replacing a door, it is best to replace the hinges at the same time.
Cutting to length

To allow the door to open and close freely, leave a gap of 4 to 8 mm at the top and bottom. Mark with a pencil how much material needs to be removed from the bottom of the door. Then use a center punch to knock the pins out of the hinges. Or if you don't have a center punch, you can use a large nail.
Straight line

After that, use a square to draw a straight line across the entire width of the door at right angles to the vertical edges. Place the door on a sturdy workbench or trestle so that it is securely supported. Remove the marked part at the bottom of the door with a planer or saw and finish the edge, leveling it with sandpaper. If you are using a planer, hold the tool at an angle to the planing direction. Then it will be easier to cut the plane.
Belt sander

When using tape grinder, high speed must be taken into account, so work carefully. Before you begin, check that the sanding belt is properly aligned - turn the tensioner knob so that the belt runs in a precise straight line over the support surface. Move the machine evenly over the surface. The machine sands very quickly and if you're not careful, the wood will show jagged marks. For sanding the door, it is best to use a coarse 40 grit sanding belt.
Cutting a thin strip

If you only need to cut a thin strip, it is recommended to press a piece of wood against the bottom of the door. This will make cutting much easier. Protect the bottom edge of the door from moisture by covering it with paint or varnish. After that, it will be possible to hang the door on the hinges again.
Door width adjustment

First check if the hinged edge of the door is parallel to the frame. If this is not the case, first of all you need to process it with a planer to fit it. To leave the clearance required for the free movement of the door in the frame, install wooden lath 6 mm thick inside the frame on the hinge side. Place the door on the rail. After that, you can mark the thickness of the material to be removed from the edge of the door that will go into the frame by drawing a pencil along the door frame.
Finishing the door

Mount the door on the gantry and cut along the line you marked. If you have a door with a built-in window or several small windows and you need to remove more than 5mm, then you need to cut off half of this thickness on each side, otherwise the door will be unsymmetrical. In order for the door to close smoothly, if necessary, you can make a downward bevel with a planer with a base 1.5 mm wide and an inclination towards the inside of the door.

After laying the laminate, the floor has risen by 2 cm, and one of the doors must be filed from the bottom by 1-1.5 cm.

Interroom door, simple laminated covered with MDF. Inside the corrugation.

What could be used to saw the door, so that:
1) it was straight
2) there were no chips, the "brush" effect on the cut.

Cover the cut with masking tape.

Drink what? Drag to any format. (saw for cutting sheet materials) There are in all large construction shopping centers, in carpentry. Do not even try with a jigsaw and a hacksaw. In theory, you can make a cutting circular saw"frog", but you need very straight arms.

Have a similar experience? I just don’t think that the shopping center will be happy if I bring them a door and say that it would be necessary to saw off 1-1.5 cm. I didn’t saw it in the shopping center, but I sawed off a lot of doors in a friendly production.

I sawed with an electric jigsaw, having previously wrapped it with masking tape. It turns out not very beautiful, but if you don’t crawl on the floor with a ruler, then it’s not noticeable. How much sawed off? what is inside at this height?

This is if you cut along the line, and if you lead the jigsaw along the guide, then the file will be exactly thin, it will lead you vertically. 16 mm sawed as hard as I tried, there is a straight line, but the vertical is walking. But the idea with a milling cutter vaupsche is an idea for all ideas.

No, it won't. On plywood "four" will be. On a 40 mm door leaf - no. With a circular saw - most likely it will work. Along the guide rail.

In Stroy Arsenal, they will most likely take it off, while the price tag will be ridiculous. I brought 32mm chipboard from them to saw. They took at the rate of 35 rubles. for the detail. They can take the same amount out the door.

Usually the canvas is not thicker than 40 mm. That's exactly what the man who put the other door said.

Yes, the canvas is 40 mm. Just sawing the door is a responsible matter :-D And they foamed the opening, closed it with platbands and no jambs are visible.

If a bar is 5 cm, and you need to saw off 2 cm, then there is no problem - a jigsaw and go ahead (adhesive tape from the "beard").
But if you are afraid that you need to saw off more than the width of the bar (you will touch the compartment with the corrugation), then it is better to take it to those who have special equipment!

Moreover, if you cut without a guide bar, the blade will walk less vertically. Because it is possible to slightly left-right click on the jigsaw and control the canvas (do not expand, namely, press horizontally)

With a bar, the canvas leads away much more specifically, up to breakage if you overdo it.

Here you have blown up the topic! Normally, these doors are sawn with a hacksaw. and.jigsaw!!! :-D

The master will help you saw off the door from below

Current service centers who carry out the repair of interior doors, as well as their Maintenance, offer a lot of different services, among which there is usually such a service as cutting the door in height, which causes sincere bewilderment among many ordinary people. And indeed, is trimming the doors necessary at all, if it is much easier to take measurements doorway and in accordance with these dimensions, purchase finished structure in the store or place an order for its manufacture in some workshop. The answer is simple - the need to shorten the door from the bottom is often the only option to save the family budget, because such a procedure is much cheaper than buying a new door leaf. There may be several reasons for pruning, but the main one is related to the implementation repair work which raises the level of the floor. And this doesn't happen very often.

Every person who installs new doors in his house hopes for their maximum long term operation. It is quite logical that for this purpose, high-quality and reliable door structures are purchased from reputable manufacturers or ordered from professional craftsmen. After all, such an approach gives confidence that the repair of such a purchase will be needed very soon. This is exactly what happens in the vast majority of cases. But people rarely take into account the state of their floor covering when choosing a door. And then another repair happens, and the owner of the apartment decides on a new parquet or laminate, as a result of which the floor level rises. After all, in order to organize a system of warm floors, lay parquet board or to mount a laminate, it is necessary to lay a layer of sound insulation and protection against moisture. And if the base is not perfectly flat, then also level it with a layer of a new screed. The result is a perfectly assembled door leaf starts to scratch the floor. Solving this problem is quite simple, you just need to file the door from the bottom, processing it after that with a special protective composition, and it will open and close freely again. At the same time, its functionality will not suffer at all. You can go the other way - buy and re-install door structures, but this option is very expensive, so it is not in demand. The first option is much cheaper, although it is unlikely that it will be possible to implement it on your own. After all, few people know firsthand how to cut interior door to prevent possible damage and damage to its appearance.

This is where the services of professional craftsmen who install and repair doors come in handy. Qualified carpenters with solid experience with interior structures, usually use the following tools to reduce the height of the blade: circular saws and hand routers. The owner of a circular saw can shorten an interior door without dismantling it. Before carrying out such an operation, the carpenter carefully measures the expected size of the cut, based on these data, a circular saw blade is installed. The quality of the cut will depend on the evenness of the floor covering, as the tool passes over the floor surface. Next, the master performs a horizontal cut, cutting off the lower part of the blade across the entire width. Such an operation should be carried out before laying the parquet board / laminate, otherwise it is unlikely that it will be possible to shorten the door from below without removing it from the hinges.

Much more convenient to use for these purposes manual frezer, although such an operation is more laborious. In this case, the door leaf is dismantled, after which it is mounted on a flat surface with clamps. The guide for the router is a wooden block, which is set by the master at the required level. In this case, the cutter must remove wood at a strictly established distance. As you can see, even the presence of such a tool does not guarantee a quality work done if a beginner is doing it. With a router, the process of trimming a door takes longer than with circular saw, because the carpenter will have to make more than one pass before the tool removes the required part of the canvas. However, this option is more reliable: the cut edges are perfectly even, as a result of which appearance doors are not damaged at all. In other cases, the need for such repairs may arise due to unprofessional installation. door structures. Due to installation errors, the interior door has to be cut shortly after installation, and only the involvement of an experienced specialist will allow you to protect yourself from such problems.

http://xn--b1adcacoe0achkvffws.xn--p1ai

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How to properly trim an interior door

Each person, buying a door, hopes that it will not be necessary to repair it for a very long time. For this, many people order doors from professionals to be sure of their quality. But there is nothing eternal in life, and repairing an apartment is an inevitable action. After you install linoleum or laminate on the floor, the interior door, by definition, will begin to close and open poorly, as the floor height has increased. Therefore, you will need to trim the door so that it opens freely and does not creak. If you leave the solution of this problem for later, you can simply ruin the door. And do not forget that buying a new model will not be cheap, because now no one has extra money.

Do you want to cut the door from the bottom? on your own for this you will need a circular saw. With it, you can shorten the doors without even removing them from the hinges. First of all, you need to take accurate measurements so as not to cut off the excess, then calm down so that your hand does not tremble, and begin to act. Remember that the gap between the floor and the door should be more than five millimeters. In this case, the door will look like a “poured” one and none of the relatives and friends will see outside interference. Shortening of the door can also be done with a hand router. In this case, the door will have to be removed from the hinges. Then it will need to be laid on a flat surface and properly secured with clamps, pressing a wooden block on top of it, which must be leveled. It will serve as a guide for the router. It must be installed in such a way that the cutter removes the wood at exactly the distance it was planned - no more, no less.

As you already understood, you will have to suffer with a milling cutter. Yes, and this process will take more time than the first version of trimming the door. You will have to make several approaches, while gradually delving into the canvas. But don't forget that this way more reliable and it will be easier for you to avoid irreparable errors. Experiment, try to achieve everything on your own, but do not forget that your actions must be carried out within reason.

http://www.dverey-remont.ru

Each person, buying a door, hopes that it will not be necessary to repair it for a very long time. For this, many people order doors from professionals to be sure of their quality. But there is nothing eternal in life, and repairing an apartment is an inevitable action. After you install linoleum or laminate on the floor, the interior door, by definition, will begin to close and open poorly, as the floor height has increased. Therefore, you will need to cut the door so that it opens freely and does not creak. If you leave the solution of this problem for later, you can simply ruin the door. And do not forget that buying a new model will not be cheap, because now no one has extra money.

If you want to saw off the bottom of the door on your own, for this you will need a circular saw. With it, you can shorten the doors without even removing them from the hinges. First of all, you need to take accurate measurements so as not to cut off the excess, then calm down so that your hand does not tremble, and begin to act. Remember that the gap between the floor and the door should be more than five millimeters. In this case, the door will look like a “poured” one and none of the relatives and friends will see outside interference. Shortening of the door can also be done with a hand router. In this case, the door will have to be removed from the hinges. Then it will need to be laid on a flat surface and properly secured with clamps, pressing a wooden block on top of it, which must be leveled. It will serve as a guide for the router. It must be installed in such a way that the cutter removes the wood at exactly the distance it was planned - no more, no less.

As you already understood, you will have to suffer with a milling cutter. Yes, and this process will take more time than the first version of trimming the door.

where / how to cut the door leaf neatly?

You will have to make several approaches, while gradually delving into the canvas. But do not forget that this method is more reliable and it will be easier for you to avoid irreparable errors. Experiment, try to achieve everything on your own, but do not forget that your actions must be carried out within reason.

Few of the craftsmen know exactly how to shorten the door correctly, since this requires certain skills, and, of course, experience. After all, damaging a door is a matter of minutes, and fixing it is a complex and tedious process. Of course, the most perfect option, is to turn to professionals who have the necessary knowledge and tools for this "operation". Today, you can get confused in the variety of companies that offer these services, and even more so to understand which of them is the best and most profitable option for you. But you should not despair, you just need to know a few rules:

You should not contact a company that has recently declared itself, and in the information it says that it has been on the market for decades. In this case, shortening interior doors may result in the purchase of new ones.
If you decide to save money, you should not order the services of private companies, it is better to take advantage of government repair offers. So you save a certain amount of money, and you will be happy with the result.
In order to find an inexpensive company, you first need to compare prices for the services offered. After that, you can safely order the master.
As soon as the master crossed the threshold of your house, once again specify the price for his services. If they are much higher, you can immediately call his company and clarify the terms of the transaction again.

How to trim a door to keep the veneer

... to bring readers up to date, initially there was a question - how to increase the doorway by 3-4 cm in height ... how to cut concrete, etc. I suggested that instead of sawing concrete, shorten the door itself in height ...)

Of course... if new door, probably beautiful, veneered ... but the veneer can also be cut so that it is not noticeable ...

If this idea interests you, I'll tell you more ...

You will need the following tools: a ruler, a square (the more - the better), a circular saw with a parallel stop, a construction knife, a wide adhesive tape, a pencil, glue veneer for sealing a cut in the color of the door, an iron, good mood, 5-6 sq. meters and 2-3 hours of free time;)))

1. Equip workplace. It is desirable that these be two flat tables on which you can lay the door flat and securely so that it does not dangle and sway. If the house has clamps, it would be nice to fix the door with them. If there are no tables, two stools can come up, the main thing is that it is convenient to work and nothing interferes around ... If something moves during the work, there is a risk of ruining the door ...

2. Mark up - measure how much to cut. You use the ELECTRON, carefully checking the “parallelism” and “perpericularity” ... You make the markup on both sides. Check 2 times the correctness of the markup.

3. Take a sharp construction knife (it is also called “wallpaper”), push it out a little and start cutting through the veneer to the main door leaf. The main thing is to cut a “groove” in the veneer, along which the circular saw itself will go. The groove should be the width of the cut. You can try sawing with a circular saw on some workpiece and measure the cut.
Before grooving and actually sawing, you can stick a wide tape on both sides of the veneer. Skoch will keep the veneer from chipping ...
The groove is cut along the ruler in several passes, first with light pressure, then more and more increasing pressure on the knife. You cut a "groove" around the entire door, the main thing is that the groove "converges", so it is important to make the correct markup ...

4. Actually drank. The saw blade must be carbide-tipped with as much big amount teeth. If the circular speed is regulated, set it to the maximum. Set the depth of cut a little more than the thickness of the door. Install the parallel stop. Check with a square the transverse installation of the disk in relation to the frame of the circular. Turn on the saw, wait until the blade picks up maximum speed. Feed the circular very smoothly, without jerks ... especially at the "input" and "output" of the wood. Phew, it's done ;))))
Peel off the adhesive tape from the cut.

The master will help you saw off the door from below

Small scratches left from the circular are removed with a “sandpaper. Large chips (if any: () are glued to PVA glue or any other suitable one. But if you do everything carefully, there should be no chips.

5. The resulting cut can be closed with a glue veneer in the color of the door leaf. The veneer is selected with a slightly larger width and, heating it with an iron, is glued. When it cools down, you need to cut off the remains with a knife.

6. Everything. We hang the door and go to drink beer.

I hope everything is clear ... Successful door building.

Departure of the master in Moscow - without holidays.

Sometimes it becomes necessary to cut already installed door(installation door extensions), this happens when the installation of interior doors has already been completed, and the owner needed to lay the laminate on the floor, but, unfortunately, the doors are not designed for this in height. In this case, it is slightly cheaper and easier to shorten the door than to replace it with a new one.

How to shorten the door?

The main task is to do everything correctly and correctly.

High-quality cutting of a door from below.

- Sometimes the question arises - how to shorten the door after an unforeseen laying of laminate or parquet.
- The network is full of descriptions of how dashing installers manage this operation using a miter circular saw.
- We recommend that you do not follow such advice in any case.
- If such an operation can be allowed for an MDF door, then the fine wood veneer will most likely be damaged.
- The difficulty lies in the fact that even the smallest saw teeth will tear out veneer particles, forming chips and creases, it is already impossible to fix such a marriage.

If you just need trimming the door from below, in height, the price of veneer, MDF (by milling, with glass, planers), then you are in our company. Our specialists will this work efficiently and promptly, observing all the wishes of the owner. When installing interior doors, every apartment owner hopes that the new door will serve him for many years. To do this, everyone is trying to choose high-quality and reliable doors only from trusted manufacturers or order from real professionals and assumes that he will not need repairs for a long time.

Trimming is carried out along the bottom with a planer or milling cutter. We have the most affordable prices for trimming a veneered door with glass to the required height!

This is basically what happens, but sometimes there are cases when trimming the doors is necessary, this happens when the owner decides that laying parquet or laminate will be a great option. Laying any flooring is associated with a change in the level of the floor. And at this time, the most difficult moment comes, since few professionals know how to properly cut the door in order to avoid serious damage and not spoil the appearance of the door.

Trimming the door from the bottom, in height, mdf.

- If you had to cut the doors after installing the hinges, this means that you incorrectly determined the dimensions of the box relative to the canvas, or made a mistake with the hinges.
- In the latter case, it would be more correct to correct the error.
- Before installing the doors on the hinges, make sure that the dimensions of the canvas are shorter than the clearance of the box by about 10 millimeters, and narrower than it by 4-5 mm, and the lines of the canvas and the porches are parallel.
- At the same time, you can make sure that the vertical stand of the box from the side of the hinges is perfectly flat - this is very important.

In order to avoid this, it is recommended to contact only proven professionals who have extensive experience. You can find such specialists in our company by calling us or visiting our website and submitting an application. We provide a mandatory guarantee for all types of work. Our masters in the process of work use only professional tools.

Company advantages:

1. All necessary work performed simultaneously and as quickly as possible.
2. Consistently high quality of services.
3. Guarantee for all types of work performed.

The master will help you saw off the door from below

The current service centers that carry out the repair of interior doors, as well as their maintenance, offer a lot of different services, among which there is usually such a service as trimming the door in height, which causes sincere bewilderment among many ordinary people. And indeed, is trimming the doors necessary at all, if it is much easier to measure the doorway and, in accordance with these dimensions, purchase a finished structure in a store or place an order for its manufacture in some workshop. The answer is simple - the need to shorten the door from the bottom is often the only option to save the family budget, because such a procedure is much cheaper than buying a new door leaf. There may be several reasons for trimming, but the main one is related to the implementation of repair work, as a result of which the floor level rises. And this doesn't happen very often.

Every person who installs new doors in his house hopes for their longest possible service life. It is quite logical that for this purpose, high-quality and reliable door structures are purchased from reputable manufacturers or ordered from professional craftsmen. After all, such an approach gives confidence that the repair of such a purchase will be needed very soon. This is exactly what happens in the vast majority of cases. But people rarely consider the condition of their flooring when choosing doors. And then another repair happens, and the owner of the apartment decides on a new parquet or laminate, as a result of which the floor level rises. Indeed, in order to organize a system of underfloor heating, lay a parquet board or mount a laminate, it is necessary to lay a layer of sound insulation and protection from moisture. And if the base is not perfectly flat, then also level it with a layer of a new screed. As a result, a perfectly mounted door leaf begins to touch the floor covering. Solving this problem is quite simple, you just need to file the door from the bottom, treating it with a special protective compound after that, and it will again open and close freely. At the same time, its functionality will not suffer at all.

It is necessary to shorten the interior door by 5.5 cm

You can go the other way - buy and re-install door structures, but this option is very expensive, so it is not in demand. The first option is much cheaper, although it is unlikely that it will be possible to implement it on your own. After all, few people know firsthand how to cut an interior door in order to prevent possible damage and damage to its appearance.

This is where the services of professional craftsmen who install and repair doors come in handy. Skilled carpenters with solid experience in interior design typically use the following tools to reduce the height of the canvas: circular saws and hand routers. The owner of a circular saw can shorten an interior door without dismantling it. Before carrying out such an operation, the carpenter carefully measures the expected size of the cut, based on these data, a circular saw blade is installed. The quality of the cut will depend on the evenness of the floor covering, as the tool passes over the floor surface. Next, the master performs a horizontal cut, cutting off the lower part of the blade across the entire width. Such an operation should be carried out before laying the parquet board / laminate, otherwise it is unlikely that it will be possible to shorten the door from below without removing it from the hinges.

It is much more convenient to use a manual milling cutter for this purpose, although such an operation is more time consuming. In this case, the door leaf is dismantled, after which it is mounted on a flat surface with clamps. The guide for the router is a wooden block, which is set by the master at the required level. In this case, the cutter must remove wood at a strictly established distance. As you can see, even the presence of such a tool does not guarantee a quality work done if a beginner is doing it. With a router, the process of trimming a door takes longer than with a circular saw, because the carpenter will have to make more than one pass before the tool removes the required part of the blade. However, this option is more reliable: the cut edges are perfectly even, as a result of which the appearance of the door does not deteriorate at all. In other cases, the need for such repair work may arise in connection with the unprofessional installation of door structures. Due to installation errors, the interior door has to be cut shortly after installation, and only the involvement of an experienced specialist will allow you to protect yourself from such problems.

http://xn--b1adcacoe0achkvffws.xn--p1ai

When carrying out repairs in individual buildings old building, where there are very low ceilings and not quite standard doorways, the question often arises of changing the dimensions of the purchased standard door. The same questions may arise during the installation and repair of floors, as well as after laying a new floor carpet.

Most modern stores now have the opportunity to change the size of existing doors for sale, as they take into account customer requests and organize small carpentry workshops directly in their stores, or cooperate with companies that can provide this type of service.

But it is not always possible to find people who will undertake changes to a standard door. And sometimes it is necessary to adjust the door already bought and delivered home. And transporting it for shortening is impractical. Therefore, the issue of changing the size of doors at home remains relevant.

And believe me, it is possible to solve this issue on your own, practically without any costs, except for your ingenuity and your own work.

How to cut a door

To change door standards, first of all, you need to know design features the door you have.

According to the manufacturing method, the designs of interior doors are divided into panel and frame (paneled, strapping).

Panel doors consist of: a frame - a frame made of wooden bars (battens), sheathing made on both sides of sheet material, and filling in the form of paper honeycombs, polyurethane or spiral shavings. Shield doors can be deaf and partially glazed.

Frame doors consist of: strapping (main bars), mullions (bars dividing the door leaf into parts) and filler (panels). Glass, fiberboard and chipboard are used as panels.

If it is not difficult to shorten the doors yourself, at home, then changing the width of the door is much more difficult, but also quite possible.

But let's stay short. Before starting work, you must definitely remember the old Russian proverb: "Measure seven times and cut once." It is necessary to carefully calculate everything, prepare essential tool, necessary materials.

We will need:

hacksaw with fine teeth,
a manual circular electric saw or an angle grinder (in the common people - "Bulgarian"),
plane,
wood glue and wooden blocks of a suitable size. We use bars - 30x30 mm.

If we use a "grinder", then a cutting wheel for metal is best suited for the production of work. When working, there will be a lot of smoke and burning from it, but it will allow you to get a drink without delamination and cracks on materials such as fiberboard and MDF.

If we shorten with a hand-held circular saw, then for work we take a disk with fine teeth and as many of them as possible - 80-112 pcs.

We will make the measurements we need and proceed to the process of shortening itself.

We mark the canvas

And if we make a cut with a circular saw, then with reverse side we attach a board to the door in order to get a smooth, burr-free, drank.

If we do the work with the help of a "grinder", then it is necessary to make wooden structure on both sides of the door. Attaching and securing the boards on both sides. This design will serve to stop the circle in it.

We make door trims

The lower section of the door leaf consists of a solid wooden block taking into account the possibility of shortening. But usually, its width is not enough for cropping. Therefore, it will come in handy for us, a 30x30 mm bar prepared by us. To close the cavity that opened after shortening. With the help of a hacksaw, we prepare the bar we need along the length, adjust it in thickness with a planer, and mount it on glue.

When cutting the door leaf of a panel door or a panel door with glass inserts, it is necessary to remember the proportions of all its components (the ratio of the sizes of all parts and the whole to each other). By greatly changing the size of the bottom of the door, we can break its harmony. And the door itself and the whole interior will be completely different.

Therefore, we need to consider the possibility of trimming the canvas on both sides, both from the top and from the bottom.

In the same way as described above, it is possible to change the width of the door.

But I would not recommend doing this, because cutting, using the tool we have at our disposal, to a length of 2 meters, will be very problematic and all the resulting flaws will be very noticeable. Such work is best done on special machines and entrusted to professionals.

And we can, if necessary, try to change the size of the doorway.

In general, we see that it is quite possible to change the size of the door, if necessary, at home.

Get to work, you will definitely succeed.