Section E: Fixed Constructions
8
Classes
32
Subclasses
356
Main Groups
3,485
IPC
9,270
CPC
Description
Section E covers the design, construction, and assembly of fixed structures and buildings. This includes structural engineering, building materials, construction methods, and the technical systems integral to constructed works such as foundations, walls, roofs, floors, doors, windows, and associated installations. The section encompasses both civil engineering structures (bridges, tunnels, dams) and architectural building systems, as well as the mechanical, electrical, and utility systems embedded within fixed constructions. It excludes movable machinery, furniture, and portable equipment unless they are specifically designed as permanent or semi-permanent components of a building or infrastructure work.
Visualizations
Size of each class by number of subgroups
| Class | Title | Descendants |
|---|---|---|
| E01 | CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES | 1,049 |
| E02 | HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING | 973 |
| E03 | WATER SUPPLY; SEWERAGE | 427 |
| E04 | BUILDING | 2,577 |
| E05 | LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES | 2,212 |
| E06 | DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS | 873 |
| E21 | EARTH OR ROCK DRILLING; MINING | 1,244 |
| E99 | SUBJECT MATTER NOT OTHERWISE PROVIDED FOR IN THIS SECTION | 2 |
Classification entries by hierarchy level
Child Classifications
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- E01 CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E02 HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL-SHIFTING
- E03 WATER SUPPLY; SEWERAGE
- E04 BUILDING
- E05 LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E06 DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS, IN GENERAL; LADDERS
- E21 EARTH OR ROCK DRILLING; MINING
- E99 SUBJECT MATTER NOT OTHERWISE PROVIDED FOR IN THIS SECTION