DESIGN CLASS-25
BUILDING UNITS AND CONSTRUCTION ELEMENTS
25-01 BUILDING MATERIALS
Note(s) Including bricks, beams, pre-shaped strips, tiles, slates and panels.
25-02 PREFABRICATED OR PRE-ASSEMBLED BUILDING PARTS
Note(s)a. Including windows, doors, outdoor shutters, partition walls and gratings.
b. Not including staircases (Cl. 25-04).
25-03 HOUSES, GARAGES AND OTHER BUILDINGS
25-04 STEPS, LADDERS AND SCAFFOLDS