Recommendations for Symbolic Designation of Direction of Closing and Faces of Doors, Windows and Shutters

IS 4043: Scope & Key Specifications

Scope (Clause 2.0):
Defines terminology and symbols for door/window hardware components, focusing on single leaf components (Clause 6.1).

Key Symbols (Clause 4.1, Table 4)

• Single Leaf Components are designated by a set of symbols per Clause 6.1, using the above conventions.
• Closing face (1) and Opening face (0) help identify hardware placement relative to the shutter.
• When 0 and 1 are insufficient, the face is identified by the part to be isolated.

Summary

• Use symbols 0 and 1 to denote opening and closing faces.
• Use 5 and 6 to indicate clockwise and anticlockwise directions.
• These conventions standardize hardware identification for doors/windows.

flowchart LR
    A[Single Leaf Component] --> B{Face Type}
    B -->|0| C[Opening Face]
    B -->|1| D[Closing Face]
    A --> E{Rotation}
    E -->|5| F[Clockwise]
    E -->|6| G[Anticlockwise]

This ensures consistent hardware designation per IS 4043.

IS 4043 - Definitions and Key Specifications

IS 4043 standardizes terminology and symbols for doors, windows, and shutters focusing on their direction of operation.

Key Definitions (Clause 2.0 & 6.1)

• Single Leaf Component: A door/window leaf designated by a full set of symbols per Clause 5 conventions.
• Faces of Doors/Windows: Each face is identified relative to the direction of operation (opening/closing).
• Direction of Closing: The direction in which the leaf moves to close, symbolized on the plan.

Important Conventions (Clause 1.1)

• a) Symbolize direction of closing on plan.
• b) Identify faces of leaves with symbols.
• c) Specify frame arrangement relative to the room or premises.

Symbolic Designation

• Based on ISO Recommendation No. 951 (2nd Draft).
• Symbols help in uniform specification and purchase.

Summary Table: Symbolic Designation Elements

flowchart LR
    A[Leaf] --> B[Direction of Closing]
    A --> C[Face Identification]
    A --> D[Frame Arrangement]
    B --> E[Symbol on Plan]
    C --> F[Inner/Outer Face Symbol]
    D --> G[Frame position wrt Room]

This ensures consistent communication for design, manufacture, and installation.

IS 4043: Field of Application - Key Points

• Scope: IS 4043 primarily covers the designation and terminology for doors, windows, and shutters, focusing on their positions, types, and components.

• Clause 2.2.3 (Conventional Face): Defines the reference face (closing or opening face) used to fix positions of doors/windows.

• Clause 3 (Field of Application): Applies to all door/window/shutter components, including single leaf units, with designations per Clause 6.1 and conventions in Clause 5.

Important Specifications:

• Single Leaf Components (6.1): Designated by a set of symbols (see Clause 5.2 for conventions).
• Positioning: Based on the conventional face for consistent identification.

No direct formulas or tables are provided in this clause; it is mainly definitional and sets the framework for naming and positioning.

Summary Table: Application Scope

flowchart LR
    A[IS 4043 Standard] --> B[Definitions (Clause 2)]
    B --> C[Conventional Face (2.2.3)]
    B --> D[Field of Application (Clause 3)]
    D --> E[Single Leaf Components (6.1)]
    E --> F[Designation Symbols (Clause 5)]

For detailed designations and symbols, refer to Clauses 5 and 6 of IS 4043.

IS 4043 - Symbols for Door/Window Hardware Designation

Key Symbols (Clause 4.1)

Notes:

• Single leaf components use a complete set of these symbols (Clause 6.1).
• For multi-leaf components, each leaf is designated individually using these symbols (Clause 6.2).
• If symbols 1 (closing face) and 0 (opening face) are insufficient, the face is identified by the side to be isolated or otherwise designated.
• The standard ensures uniform terminology for door/window hardware direction and face designation to facilitate specification and purchase (Clause 2.1).

Application:

• Symbols define direction of operation (clockwise/anticlockwise).
• Symbols define which face of the shutter or door is closing or opening.

flowchart LR
    A[Door/Window Component] --> B{Single Leaf?}
    B -- Yes --> C[Use full set of symbols (5,6,1,0)]
    B -- No --> D[Designate each leaf individually with symbols]
    C & D --> E[Identify face: Closing (1) or Opening (0)]
    E --> F[Direction: Clockwise (5) or Anticlockwise (6)]

This symbolic system is aligned with ISO Recommendation No. 951 for consistent hardware designation.

IS 4043: Conventions for Direction of Rotation and Face Identification

Key Points from IS 4043:

• Directions of Rotation (Clause 2.1 & 2.1.3):

  • Two directions: Clockwise (5) and Anticlockwise (6).
  • Conventional direction of rotation is the direction causing the leaf to close (Clause 5.1).

• Face Identification (Clause 4.1):

  Description	Symbol
  Closing face	1
  Opening face	0

• Note:
  If symbols 1 (closing face) and 0 (opening face) are insufficient, the face is identified by the side to be isolated or designated otherwise.

Summary Table:

Usage:

• When specifying hardware or shutter operation, use the closing direction (clockwise or anticlockwise) as the conventional direction.
• Identify the closing face as the primary reference face for hardware positioning.

flowchart LR
    A[Start: Identify leaf movement] --> B{Direction of rotation?}
    B -->|Clockwise (5)| C[Closing or Opening?]
    B -->|Anticlockwise (6)| C
    C -->|Closing| D[Conventional direction = Closing direction]
    C -->|Opening| E[Opposite of conventional direction]
    D --> F[Identify Closing Face (1)]
    E --> G[Identify Opening Face (0)]

This ensures consistent hardware designation and installation per IS 4043.

IS 4043: Application to Doors, Windows and Shutters

This standard covers doors, windows, and shutters with leaves rotating about one or more vertical axes.

Key Points from IS 4043:

• Scope (Clause 3.1): Applies to leaves moving about vertical axes.
• Conventions (Clause 1.1):
  • Symbols designate the closing direction on plan.
  • Symbols identify faces of leaves relative to operation direction.
  • Specifies frame arrangement relative to the room or premises.

Typical Specifications (from general engineering practice):

• Leaf thickness: Usually 35-50 mm for timber/metal doors.
• Clear opening: As per functional requirement, typically 900-1200 mm wide.
• Frame depth: Minimum 75 mm for timber frames.
• Hinges: Number and size depend on leaf weight; usually 3 hinges for up to 2 m height.

Common Symbols (example):

Diagram: Door leaf and frame orientation

graph LR
    A[Frame] --> B[Leaf]
    B --> C[Closing Direction]
    B --> D[Face 1]
    B --> E[Face 2]

For detailed dimensions and hardware specifications, refer to relevant IS codes like IS 2202 (for hardware) and IS 1003 (for timber doors/windows).

IS 4043: Application to Hardware Accessories - Key Points

1. Designation of Components with Multiple Leaves (Clause 6.2)

• Each leaf is designated by a full set of symbols per Clause 5 conventions.
• Future provisions may allow symbol reduction for multiple leaves.

2. Ordering Hardware (Clause 7.1)

• Always order hardware by full standard designations of the components.
• Example:
  • Hinges for window: 6.0
  • Mortice lock for door with safety blocks: 5.1

3. Hardware Rotating Components (Clause 0.2)

• Hardware like hinges, hinge-pins, pivots, bolts, and locks vary by:
  • Direction of leaf closing (inward/outward)
  • Position on shutter faces
  • Specific hardware structure

4. Recommended Symbols (Clause 4.1 Table)

• Note: If symbols 1 and 0 are insufficient, identify the face by the part to be isolated or another designation.

Summary Diagram: Hardware Symbolization Flow

flowchart TD
    A[Component with multiple leaves] --> B[Designate each leaf fully]
    B --> C[Assign symbols per Clause 5]
    C --> D{Order hardware?}
    D -->|Yes| E[Use full standard designations]
    E --> F[Example: Hinges 6.0, Locks 5.1]
    D -->|No| G[Symbols may be insufficient]
    G --> H[Identify face by isolation or other means]

Use this framework to ensure correct specification and ordering of hardware accessories per IS 4043.

IS 4043 - Examples of Designation for Doors, Windows, and Shutters

Key Points from Clause 6.1.1 and 6.2:

• Designation Symbols indicate:

  • Direction of movement (e.g., clockwise)
  • Face of the door/window (opening or closing face)

• Single Leaf Components (Clause 6.1):

  • Designated by a complete set of symbols as per Clause 5 conventions.

• Multiple Leaf Components (Clause 6.2):

  • Each leaf is individually designated by a full set of symbols.
  • Additional conventions may simplify multi-leaf designations.

Example Symbols (from Clause 6.1.1):

Typical Room Designation Summary (Fig. 3):

*Double door is not two leaves but a double door unit.

Summary Diagram: Door Designation Flow

flowchart TD
    A[Door] --> B{Number of Leaves}
    B -->|Single Leaf| C[Use full symbol set (Clause 5

IS 4043 Ordering Recommendations Summary

• Clause 7.1: Always order hardware items using the full standard designations of the components they are intended for, not just a single symbol. This ensures clarity and correct matching.

• Examples:

  • Hinges for window: Refer to 6.0 (full designation).
  • Mortice lock with safety blocks and closing knob for door: Refer to 5.1.

• Clause 6.1: For single leaf components, use the complete set of symbols as per Clause 5 conventions when designating.

Key Points for Ordering:

Why full designation?

• Avoids ambiguity.
• Ensures compatibility.
• Facilitates correct manufacturing and installation.

flowchart TD
    A[Order Hardware] --> B{Use Full Designation?}
    B -- Yes --> C[Correct Component Delivered]
    B -- No --> D[Risk of Mismatch]
    D --> E[Delays & Rework]

Always specify complete standard codes when ordering per IS 4043.

IS 4043: Notes and Additional Conventions Summary

Key Points from Clauses 6.1 & 6.2:

• Single Leaf Components: Use a full set of symbols per Clause 5 conventions.
• Multi-Leaf Components: Each leaf is individually designated with full symbols.
• Note: For multi-leaf components, additional conventions may simplify symbolization later.

Clause 1.1: Standard Conventions

• Direction on Plan: Symbolize door/window/shutter closing direction.
• Face Identification: Symbolize each face relative to operation.
• Frame Arrangement: Specify frame relation to room/premises.

Clause 4.1: Recommended Symbols Table

Note:

• If symbols 1 and 0 are insufficient, identify the shutter face by the part to be isolated or use alternate designation.

Usage Example

• A single leaf door closing clockwise on the closing face would be symbolized as:
  5 (clockwise) + 1 (closing face)

flowchart LR
    A[Component Type] -->|Single Leaf| B[Use full symbol set]
    A -->|Multi Leaf| C[Designate each leaf individually]
    C --> D[Apply additional conventions for simplification]

    subgraph Symbols
        E[Clockwise: 5]
        F[Anticlockwise: 6]
        G[Closing Face: 1]
        H[Opening Face: 0]
    end

This concise framework ensures clarity in designation and symbolization per IS 4043.