Stairs
Stairs: a functional and structural building element ensuring vertical connections between floors of a building (divided into three types):
internal stair - a stair inside a building, structure:
located in a stairwell - enclosed (type 1);
located in vestibules, foyers and others - open (type 2);
external stair - a stair on the facade of a building for evacuation of people or technical purposes - type 3
Source: "SP 118.13330.2012. Regulation. Public Buildings and Structures. Updated Edition of SNiP 31-06-2009"
(approved by Order of the Ministry of Regional Development of Russia dated December 29, 2011 No. 635/10)
Понятие «лестницы» женского рода.
| Падеж | Единственное число | Множественное число |
|---|---|---|
| Р | лестницы | лестниц |
| Д | лестнице | лестницам |
| В | лестницу | лестницы |
| Т | лестницей | лестницами |
| П | лестнице | лестницах |