Doors – Parts, Location, Standard Sizes, Types
Doors are essential components of any building that provide access, privacy, and security. They are used for entry and exit and also contribute to the aesthetic appearance of structures. In the ITI Draughtsman Civil trade, understanding the parts, location, standard sizes, and types of doors is important for preparing accurate building drawings and construction planning.
Proper selection and placement of doors ensure functionality, safety, and convenience in buildings.
Parts of a Door
A door consists of several components, each serving a specific function:
- Frame: The outer structure fixed in the wall to support the door shutter.
- Shutter: The movable part of the door.
- Panels: Flat or raised surfaces in the shutter.
- Stiles: Vertical members of the shutter.
- Rails: Horizontal members of the shutter.
- Hinges: Allow the door to open and close.
- Lock and Handle: Provide security and operation.
Understanding these parts helps in designing and constructing doors effectively.
Location of Doors
The location of doors in a building should be planned carefully for convenience and safety:
- Doors should be placed at convenient positions for easy access
- Main entrance door should face the road or open space
- Doors should not obstruct movement inside rooms
- Proper spacing should be maintained between doors and windows
Correct positioning improves circulation and usability of spaces.
Standard Sizes of Doors
Standard sizes of doors are used for uniformity and convenience in construction:
| Type of Door | Width (mm) | Height (mm) |
|---|---|---|
| Main Door | 900 – 1200 | 2000 – 2100 |
| Room Door | 800 – 900 | 2000 – 2100 |
| Bathroom Door | 700 – 800 | 2000 |
Standard sizes ensure ease of construction and replacement.
Types of Doors
Doors are classified based on material, construction, and operation:
1. Battened and Ledged Door
Made of vertical wooden boards joined with horizontal ledges.
2. Framed and Panelled Door
Consists of a frame with panels, commonly used in residential buildings.
3. Flush Door
Has a smooth surface and is widely used in modern construction.
4. Glazed Door
Contains glass panels to allow light.
5. Sliding Door
Opens by sliding horizontally.
6. Revolving Door
Used in commercial buildings for continuous movement.
7. Steel Door
Made of steel, strong and durable.
8. PVC Door
Made of plastic material, resistant to moisture.
Each type is selected based on requirement and usage.
Functions of Doors
- Provide entry and exit
- Ensure privacy and security
- Control ventilation and light
Factors to be Considered
While selecting doors, the following factors should be considered:
- Purpose of the room
- Material and durability
- Cost and maintenance
- Safety requirements
Importance in Construction
Doors are essential for:
- Ensuring accessibility
- Providing safety and privacy
- Enhancing appearance of building
Importance in Draughtsman Civil Trade
Knowledge of doors helps draughtsmen in preparing building plans and selecting suitable door types. It ensures proper design and functionality.
Conclusion
Doors are vital components of buildings that provide access, security, and comfort. Understanding their parts, location, standard sizes, and types is essential for proper construction.
For students of the ITI Draughtsman Civil trade, this knowledge is crucial for designing efficient and user-friendly buildings. Proper selection and placement of doors ensure safety and convenience in construction projects.