How to install a cabinet with a sink in the bathroom: step-by-step instructions

assets/from_origin/upload/resize_cache/iblock/bbe/600_450_2/bbe5555275fec262c53e1ae864ef5f3b.jpg From this article you will learn:

• What are the benefits of hanging bathroom cabinets?
• How to choose a quality sink with cabinet
• What type of cabinet with sink can be called the best?
• What to look for when purchasing this piece of furniture
• How to properly install a cabinet with a sink with your own hands

As a rule, bathrooms in our houses are small, so furniture fits in them with difficulty. An important quality of the interior of a small bathroom is functionality. In this case, along with aesthetics, you should try to make the room feel spacious. A wall-mounted cabinet is a godsend for a small bathroom. The compact model takes up little space, and in the cabinet under the sink you can store household chemicals, cosmetics or bathroom accessories. From our article you will learn how to install a wall-hung cabinet with a sink.

Recommendations for selecting furniture

The overall requirements for a cabinet installed under a bathroom sink are:

• General compatibility of the cabinet with the materials and colors of the entire design in the bathroom. This point means that if all the elements of furniture and plumbing are made in a soft style with smooth lines, strict rectangular furniture will look out of place, but with a classic bathroom design with luxury and wealth, the cabinet under the sink should at best be presentable, but by no means simple.

• High-quality and functioning fittings of the product, i.e. handles, legs and door hinges should be made of either plastic (can be gold-plated) or chrome-plated metal.

Gold-plated handles
Painted bathroom sink cabinets with a colored coating should have a perfectly flat and smooth surface.

In terms of functionality, it is advisable to install a cabinet under the sink with the following parameters:

• With a laundry basket to save space in a small room.

Cabinet with laundry basket

• With height-adjustable shelves, so that during operation it is convenient to easily adjust the height of the shelves to the dimensions of cleaning products and detergents.
• A pull-out option, with the possibility of moving the cabinet to any place in the bathroom, however, it is necessary to take into account the location of all communications (water supply and sewer pipes), which, as a rule, are located permanently in most cases.
• The cabinet must have a base height or be on legs. Such a cabinet will be convenient both in caring for it and in its simple operation.

Other requirements when installing a cabinet under the sink are:

1. A heated floor laid in the bathtub, which will facilitate the cleaning procedure, while ensuring the necessary ventilation of the room, which is an important point for a room with high humidity.
2. Corner design of the cabinet, if the room for taking water procedures is very small in size.

Regarding the choice of location in the bathroom for a sink with a cabinet. It is advisable to determine it at the stage of laying pipelines for cold, hot water supply and sewerage. Since the space under the sink will be installed based on existing parameters, as well as purchased furniture.
The room must be measured in advance and divided into segments so that both existing plumbing fixtures and furniture, as well as newly acquired elements, correspond to the location planned for them in it.

Design Features

Such kits must meet several requirements.

Among them:

• ensuring the safety of things inside;
• moisture resistance of the material used in their manufacture;
• stability of the stand itself, as well as shelves, drawers and other contents;
• tightly closing doors;
• minimum occupied space;
• compliance with the overall design of the room.

Components

Installing a sink with a cabinet in the bathroom requires understanding and ability to understand the main components of this furniture.

So, the main elements of a sink with a cabinet are:

• sink or washbasin, or sink (wall-hung, built-in, surface-mounted or on a pedestal);

Sink

• vertical mixer with flexible or rigid connections;

Mixer

• drain siphon;

Siphon

• fastening the sink (brackets or anchor screws, bolts, rubber gaskets, nuts, FUM tape, metal corners, screws, dowels, metal-plastic pipes, as well as polyurethane foam or silicone sealant);
• cabinet.

Cabinet
In this case, from the tool kit you will need to purchase the following to install a sink with a cabinet in the bathtub:

• screwdriver;
• perforator;
• hole saw or circular saw;
• roulette;
• wrench;
• putty knife;
• pencil and ruler;
• building level.

Types of wall tables

Hanging vanity with bathroom sink

Over time, the variety of bathroom furnishing options has increased. Each item is now selected from the point of view of not only practicality, but aesthetics, functionality and compatibility with other elements.

A wall-mounted vanity is a piece of bathroom furniture in which a sink bowl is built into the design and mounted on the wall of the room. Based on the characteristics of the bathroom and the wishes of the buyer, you can choose the most suitable model:

• a regular bedside table with a wall mounting method, designed for storing linen, clothes, and household items;
• wall-hung design with washbasin and built-in faucet;
• large cabinets with the ability to accommodate 2-3 sink bowls with internal storage system.

Modern manufacturers present a wide range of cabinets, differing in the following characteristics:

• dimensions;
• colors;
• body materials, finishing: wood, plastic, metal, acrylic, MDF, chipboard;
• the presence and complexity of the internal storage system;
• functionality: adding a sink, faucets, mirror, lighting, drawers, shelves, and a section with a wastebasket to the cabinet.

At first, wall-mounted cabinets were the best option for arranging small bathrooms in city apartments. But over time, the product range was expanded. This made it possible to select options for spacious rooms and even for public places with high traffic volumes.

Installation steps

You can independently install a sink with a cabinet in the bathtub without the involvement of specialists, simply by following the following step-by-step instructions:

1. Try on the purchased cabinet made of moisture-resistant material to the installation site in the bathroom, so that all its elements during installation do not accidentally subsequently interfere with the smooth connection of the water supply and sewerage system.
2. Mount a vertical mixer (faucet) and drain siphon to the sink.
3. Place the sink with attached plumbing fixtures on the cabinet and give it a strictly horizontal position.
4. Adjust the height of the cabinet legs with a wrench.
5. Mark the attachment points with a pencil and tape measure.
6. Create holes with a hole saw or circular saw at the marked points.
7. Mount the cabinet using dowels or silicone glue, i.e. Carefully place the assembled cabinet with sink against the wall and screw this structure to it with special anchor screws using a screwdriver, or simply glue it with silicone. In this case, the excess silicone will need to be immediately carefully smoothed over the surface using a spatula.
8. Connect all communications (hot and cold water sources from city pipelines, sewerage) using metal pipes or union nuts to the mounted structure. If an obstacle arises, the cabinet will need to be modified, i.e. cut holes of the required size in its lower or rear wall

As a rule, the furniture assembly kit includes instructions with a detailed installation diagram. The main thing in the process of installing the structure in the bathroom is to ensure that all the screws are well tightened, because after installing the washbasin with the cabinet, it will become almost impossible to tighten them.

If it is not possible to attach the purchased washbasin to a standard modification cabinet, then you should make an individual order for the manufacture of moisture-resistant furniture for the bathroom sink in the sizes and shapes required by the project.

Poor installation of a bathroom sink can lead to all sorts of problems, such as water leakage, an unpleasant smell from the sewer pipe into the room, or a lack of liquid pressure from the tap. In this regard, before installing a sink with a cabinet in the bathroom, it is advisable to get a short but very significant consultation from a plumbing specialist.

Important nuances

Attaching the cabinet and sink to the wall is advisable if it is strong enough.
In other cases, it is important to use a supporting frame. The installation height of the washbasin is selected individually, the average range is 80–85 cm. To make the sink comfortable for children to use, you can install it lower, and higher for tall people. Plain paper will help to identify minor leaks after installing the washbasin (or make sure there are no leaks). It must be placed under the threaded connections and left for half an hour. If the paper remains dry, everything is fine. If wet spots appear, disassemble the connections and repair any leaks.

Read our previous article about which countertop to choose for your bathroom.

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How to choose a place to install a cabinet

The installation of a cabinet under the sink in the bathroom should be carried out in such a way as to ensure maximum convenience during operation. To do this, you need to choose the right place to place it. If you took into account the size of the room when choosing a cabinet model, then the most convenient place to install the sink is next to the bath structure.

The location for installing the cabinet must be determined before installation and wiring of communications begins.

Fix the discount

Features of preparing a place for installing a cabinet under the sink in the bathroom:

• measure the dimensions of the room and divide it into zones;
• determine the place where you plan to install the structure of the bathtub, shower box, sink and other equipment;
• determine where the pull-out shelves and cabinet doors under the sink will open. Make sure that their opening is not interfered with by pipe connections, fittings and other elements. In some cases, it is better to cut the pull-out shelves than to look for another place to install the cabinet under the sink;
• The most convenient option for connecting a sink with a cabinet to the sewer system provides for the presence of an outlet for the sewer system from the floor. In this case, you can trim the bottom of the cabinet a little (the trimming areas are treated with a protective base).

Need to know before starting work

The bedside table can be sold assembled, but most often it is a set of individual components. Therefore, before assembly, you must read the instructions and drawings. Compliance with the rules and consistency ensures that, when assembled, the stand will fit in the designated place and will not interfere with the connection of communications.

Before purchasing, you also need to evaluate the contents of the product. Additional drawers and shelves should have several height options to accommodate items of various sizes. The height above the floor at which the sink is supposed to be mounted should be suitable for each family member.

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Materials

Furniture with a washbasin should be functional and beautiful, but if it is made of low-quality materials, then all its benefits are reduced to zero. Since the quality and service life of the entire structure depend on the materials. The main requirements for cabinet materials are their ability to withstand sudden drops in temperature and moisture resistance. Materials that have such qualities are MDF panels, chipboard, artificial stone and wood. The surface of furniture made from MDF is usually processed using two methods:

1. By painting. First, a primer is applied to the surface of the material, and then it is painted with paint in several layers. This makes the furniture highly protected.
2. Treatment with a special composition. The material, both outside and inside, is treated with a special moisture-resistant liquid, which prevents the process of reproduction and spread of fungi, mold, etc.

A cabinet made of chipboard is cheaper, and it is not afraid of various mechanical damage. The surface of this material is covered with sheet plastic, which prevents delamination and swelling of the material. There is no doubt about the reliability of furniture and sinks made of artificial stone

The only thing that is very important is that there is no damage to the surface of the furniture, including scratches that could destroy the integrity of the material. If the furniture is made of wood, it must be coated with a special moisture-resistant product

In terms of cost, furniture made from natural wood is slightly more expensive than those made from MDF or chipboard.

The quality of the fittings is of no small importance. Over time, the doors may begin to creak and become loose.

Therefore, the more firmly they are installed, the longer they will serve you.

As for the sink itself, it can be: ceramic, porcelain, earthenware, cast iron, steel, stone and glass. In this case, the materials of the cabinet and sink must be combined.

Depending on what materials the entire structure is made of, its cost changes. At the moment it ranges from 1,050 to 325,600 rubles.

Practical advice

When installing various plumbing fixtures and equipment, the same problem can be solved in several ways. Which one is better is up to you to decide. We give only professional advice from masters, but there is no consensus among them.

Options for sealing a sink with a wall

1. Silicone is applied on the outside around the perimeter of the sink. The traditional method is used in most cases. Disadvantages - low-quality material peels off over time, dirt gets into the gap between it and the sink and becomes very noticeable. You have to periodically remove the old silicone and apply new one. After a year or two, black spots appear on all types of silicone, even on the most expensive ones with antiseptic additives. In addition, over time, it changes its original color, becomes dull, and various stains appear on the surface. It is impossible to eliminate this drawback by cleaning or washing; you have to completely remove the old silicone and apply new one.

   You can apply sealant to the joint between the bowl and the cabinet

Advice. Match the color of the sealant to the color of the ceramic tile, not the color of the sink. Due to this, it is possible to make deviations in the width of the gap invisible.

1. Silicone is applied around the perimeter of the sink from the back side until it is fixed to the wall. The thickness of the layer and the location of its application are selected in such a way that after pressing against the wall, excess does not appear on the surface. The disadvantage is that over time the cracks have to be cleaned of dirt.

   Applying sealant to the back of a sink

2. Using rubber seals for windows and doors. They have glue on one side, a thickness of approximately 5 mm, and are characterized by high elasticity and long service life. The seals are carefully glued around the perimeter on the back side of the sink before installation, and after pressing they ensure a complete tight fit. Many professional plumbers consider this sealing method to be the most optimal. Nothing peels off, accumulated dirt can be easily removed if necessary, and the service life of the seals is practically unlimited.

Required Tools

Since installing a sink is not a very complicated process, you don’t need too many tools for this:

• drill or hammer drill. It will be necessary to drill holes in the wall;
• screwdriver or screwdriver. Insert dowels into the holes and tighten the brackets with screws;
• building level. Make even markings;
• tape measure and pencil. Measure the required height;
• hammer. For driving dowels;
• gun for a bottle of sealant. Seal the seams.

Here, in principle, is the entire simple set of tools for fixing the washbasin. Read on to find out what the height standard for installing a sink in a bathroom is.

The following video will tell you what you need to have with you before installing the sink:

https://youtube.com/watch?v=AVjqVh9FW5o

Assembling a combined toilet with your own hands

Russian people do not look for easy ways. If there is a need to save space in a combined bathroom, you can assemble a combined model with your own hands without spending extra money on purchasing such a miracle. To carry out the work, the home handyman will need to select a small toilet and sink. The following requirements apply to them:

• The drain button should be located on the side of the tank;
• It is recommended to choose tanks with smooth edges around the entire perimeter;
• The sink should have a flat bottom - the “water lily” type sink model, which is often mounted on top of the washing machine, is ideal;
• You should choose a sink that matches the size of the toilet lid or sticks out just a little. If you choose a large washbasin, then the side of the sink will rest against the back of the person sitting on the toilet (this causes discomfort).

If the height is not of fundamental importance, you can do it easier - hang the sink directly above the toilet and use it to collect water into the tank. The only disadvantage of this solution is that you will have to look for a flat siphon.

It might be interesting: How can you glue a cracked toilet or cistern together?

Brief summary

Now you know what a toilet with a sink on a cistern or a combo toilet is. If you are a jack of all trades, then you can go even further and turn a simple toilet into a real multifunctional device - experts advise installing a bidet lid on the toilet and that’s it. The combined model will combine three plumbing fixtures.

There are a huge number of models on the market, the design features of which can be studied on the Internet or in a specialized plumbing store.

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Types of sink brackets

The fasteners for mounting a washbasin on the wall must be able to withstand the weight of the plumbing fixtures with a margin. They are made from various metals.

• special mounts designed for mounting a specific model. Often these are exclusive designer washbasins with an unusual shape. Brackets for such plumbing fixtures are included and can be made in the form of specially shaped pins, pipes that go around the sink, or unusual welded structures. Such fastenings are treated with special decorative compounds (ceramic or metal).

Special spring-loaded frame mount for sink

• Brackets for standard wall-mounted sinks are made of cast iron or steel and coated with anti-corrosion paint. They are produced in the form of T-shaped or L-shaped racks, and can also be made in the form of frames with a sliding unit to adjust the size of the fastening. Brackets in the form of a metal frame into which the washbasin is placed are particularly reliable.

Steel L-shaped brackets

Selection criteria and rules

Design for two sinks

Before choosing a hanging structure, you need to make sure that the walls of the room are suitable for the appropriate fasteners. The fact is that this type of furniture must be mounted into the wall without the use of additional support or ceiling fixation. In this case, the object acts as a constant load for the walls and contributes to collapse if their material is not strong enough.

Wall cabinets should only be mounted on vertical surfaces made of concrete or brick. Before purchasing a cabinet, it is recommended:

• take measurements of the free area provided for placing furniture;
• check the integrity of the walls;
• decide on the color and shape, based on the design of the entire room, the shape of the bath itself;
• make a connection for the tap;
• If you plan to install a wall mirror that is not included in the cabinet set, take height measurements - from the floor and ceiling to the installation site.

Preliminary measurements are made taking into account the dimensions of the product itself and the distance required for normal opening/closing of the cabinet doors (if any). It is also worth paying attention to the material from which the furniture itself is made. Humidity has a negative impact on most of them, so even with high-quality installation and reliability of the walls, the product may collapse over time, unable to withstand its own weight.

Since it is possible to install a wall-mounted structure only on a strong concrete or brick wall, it is better to make sure in advance that the quality of the surface meets the requirements, and that there are no hidden damage, cracks or seams under the finish.

The color is selected taking into account the buyer's preferences. When choosing a bowl shape, they are guided by an unspoken rule: for bathrooms with corner and round bathtubs, you should choose round, oval (hidden or external) sinks.

For classic rectangular bathtubs and compact shower cabins, square or rectangular cabinets with a bowl are preferable, each side of which coincides with each other: that is, the width of the sink matches the width of the cabinet in which it is installed, and the length matches the length.