This question is mostly of interest to those who are just beginning to "build."What are the window openings in the walls, what sizes do the PVC windows look for, are there any standards? As for the buildings of the exploited, it is simpler here - you only need to make the necessary measurements. Let's try to understand the "standards".
If you study the relevant GOSTs( and there are quite a few of them), in which many different nuances are specified( types of profiles, number of double-glazed windows, shutters, vestibules, etc.), it is practically impossible to come to a definite conclusion, without special preparation. Moreover, everywhere there are those or other tolerances, depending on the mass of factors.
Therefore, there is no sense to focus on any single standard, and there are several reasons.
Firstly, , not all Manufacturers accurately withstand the recommended size. They take into account the most common in the construction parameters of window openings, and "under them" and adjust the size of the blocks.
Secondly, , there is a certain tolerance, which should be adhered to. According to SNiP, the lateral gaps( wall-block) can be in the range of 1.5 to 3.5 cm. After installing the windows and fixing them with the anchors, the voids are "faded".Consequently, a small "±" does not play a special role.
Thirdly, , in the projects of the vast majority of apartment buildings, there are frames made of wood, rather than "plastic".So, you need to choose PVC windows already "in fact", under a certain size.
Practitioners recommend to focus on such indicators( in "mm") depending on the "series"( type) of the house( multi-apartment buildings are meant):
137 series
Valves: 2 - 1 420 for 1 150;
3 - at the same height, the width is 1 700.
504 series
Valves: 2 - 1 530 for 1 510( for 504Д 1,420 per 1,100);
3 - width 2 240( corresponding to the width of 2 030).
505 series
Shutters: 2 - 1 410 for 1 450;
3 - the height is the same, width is 2 030.
600 series
Shutters: 2 - 1,420 at 2,680;
3 - 1 100 for 2 360.
600.11 series
Shutters: 2 - 1 410 for 1 450;
3 - width 2 050.
606 series
Only two-winged in size for houses "600.11".
"Stalin" building
1 900 x 1 500( 2 leaves).
Panel "Khrushchev"
- 2 leaflets - 1 340 x 1 280;
- 3 leaflets - 1 500 x 2 040.
Conclusion
- There are no single, strictly defined sizes for today. There are only approximate, for which you need to navigate.
- When determining the number and parameters of the blocks, it is necessary to take into account:
- the total glazing area should correspond to 1/8 to 1/10 of the total floor surface in the room;
- The smaller the window size, the greater the proportion of the structure occupied by the frame elements. Consequently, "less" glass and, as a result, the level of illumination of the room falls.
- It is much more convenient to make "plastic" windows to order, as practice shows that not all openings in their dimensions are the same( natural error in construction).In addition, by ordering several blocks at once, you can count on a substantial wholesale discount, which is provided by almost all companies specializing in the production of PVC windows.