Washbasin dimensions as one of the main selection criteria
Choosing a bathroom sink is not as easy as it seems, because the range of models on the modern plumbing market is capable of confusing even the most careful buyer. Therefore, before going to the store, it is better to decide in advance on the selection criteria, and in this article we will talk about one of the most important points - the size of the sink.

Sink for the bathroom in terms of geometry
The main criteria when choosing

So, we face the task of choosing a washstand for the bathroom. By what criteria will we determine whether any model fits us or not?
Let's list the main ones:
- Bowl Shape. This is usually the first thing the average plumbing buyer pays attention to. However, it should be said that this indicator relates to secondary criteria related to style, and not to functional and technical features;
- Material. One of the most important moments that we talked about in previous articles. Many features and qualities of a sanitary fixture depend on the type of material;
- Installation method or type of sink. It is also the primary criterion, and we have written about it repeatedly;
- Bowl sizes. Not only the ease of use of the device, but also the very possibility of installing it in a particular room with specific furniture depends on its size.

Note! It is necessary to understand that first of all it is necessary to determine what type of sink we need, what it should be made of and what sizes it will be optimal in the conditions of our bathroom. Only after this should choose the style, color and everything else.
That is, at the first stage, we should discard emotions and be guided only by practical considerations, and only then consider the issues of design and taste preferences. One of the first moments when choosing is the size of the device.
Main types

Consider what all sizes of instruments are. To do this, refer to the regulatory documents. Washbasin according to GOST 30493 96 may belong to such groups:
Group by size | Width, mm | Distance to wall, mm | Depth mm | Removing the drain hole from the back wall, mm |
1st group | 400 - 500 | 300 | 135 | 180 |
2nd group | 550 | 420 | 135 | 180 |
3rd group | 600 | 450 | 150 | 180 - 200 |
4th group | 650 | 500, 455 | 150 | 180 - 200 |
5th group | 700 and higher | 600 | 150 | 180 - 200 |

Note! The dimensions given in the standard are very conditional, however, we see that even they make up as many as five groups in size. The real market offers much greater variety.

It is believed that the optimal width of the shell should be in the range of 50 - 65 cm. At smaller sizes, the spray falls outside the device, and at large sizes the product takes up too much space. However, in practice it is necessary to proceed from real conditions and adjust to the parameters of the room.
The depth of the bowl should not be less than 15 centimeters (the dimensions of a small washbasin allow 13.5 cm); the deeper it is, the less spray falls outside the washstand.

Note! Do not forget that its price depends on the size of the bowl. In addition, standard forms are always cheaper exclusive and rare.
As for the height of the sink - it all depends on the growth of the tenants of your apartment. The optimum height for men is 95 - 110 cm, for women - 80 - 85 cm. The average value is about 90 - 93 cm from the floor.
Features of operation of different groups

Small sinks measuring 40–50 cm are usually placed in toilets or small bathrooms. Often they are angled, but they are also round and oval. Everything is simple here: if the room is small and it is planned to install a washing machine or other large appliances / furniture, then there is no other way out.

As already mentioned, the most popular and versatile products are 50 - 65 cm wide. They fit perfectly in almost any interior and are good in terms of operation - the spray does not fly to the floor, the extra space is not occupied. In this group, a variety of bowls in all variants of design.
A tandem with a cabinet is possible here, and the most practical is considered to be a hanging model without legs and a plinth. This allows time to sweep out from under her dust and debris.

Note! When installing a large bowl on the countertop, it is impractical because the spray will not fall on the floor in any case.
Sinks of 700 mm and above are already a luxury, which can only be allowed in a really spacious bathroom. Of course, such devices are very convenient and thorough, but their installation with their own hands will not be so simple, because the weight of a ceramic sink of this size is very large.

Also for spacious bathrooms it is possible to install double sinks, which is very convenient in a large family. In this case, the distance between the centers of the bowls should be at least 90 - 100 cm, otherwise it will be uncomfortable to use them at the same time.

Conclusion
The choice of sink for the bathroom should begin with the selection of the optimal size of the bowl, which will fit into your bathroom and will be easy to operate. The video in this article clearly illustrates our story.