This standard BS EN 14076:2013 Timber stairs. Terminology is classified in these ICS categories:
91.060.30 Ceilings. Floors. Stairs
01.040.91 Construction materials and building (Vocabularies)
This European Standard defines general terms relating to timber stairs or to timber in prefabricated stairs, including wood-based materials for dwellings and buildings other than dwellings for permanent use. NOTE This European Standard contains terms relating to stairs in general and these terms could be reviewed when a general document becomes available.