Recommendations for co-ordination of dimensions in buildings-Arrangements of building components and assemblies, Part 5: Functional group 5 Fixtures, furniture and equipment

IS 7564 Part 5 - Scope & Key Specifications

Scope (Clause 2.0 & 2.9)

• Defines co-ordinating dimensions for building components in Functional Group 5: Fixtures, furniture, and equipment.
• Emphasizes basic size as the reference size fixing limits.
• Focuses on co-ordination of dimensions to ensure functional compatibility of juxtaposed products.

Key Tables (Clause 4.1 - Table 1)

• Provides recommended coordinating dimensions (Length, Width, Height, Thickness) for various components under domestic living, commercial, and community servicing.
• Components graded A, B, C based on functional priority.

Notes:

• Dimensions marked with an asterisk () are measured above floor level.*
• Cross references to other functional groups are provided for integrated design.

Summary:

• IS 7564 Part 5 standardizes dimensions to ensure functional compatibility and modular coordination of fixtures and furniture.
• It aligns with international standards (BSPD 6432 Parts 1 & 2).

flowchart LR
    A[Basic Size] --> B[Co-ordinating Dimensions]
    B --> C[Fixtures]
    B --> D[Furniture]
    B --> E[Equipment]
    C --> F[Domestic Catering]
    D --> G[Personal Dressing]
    E --> H[Commercial Servicing]

This ensures modularity and interoperability in building components per IS 7564 Part 5.

IS 7564 Part 5 - Definitions & Key Specifications

Key Definitions (Clause 2.0 & 2.9)

• Basic Size (2.9): The reference size used to fix the limits of size for components.
• Functional Group 5: Covers fixtures, furniture, and equipment.

Grading & Co-ordinating Dimensions (Clause 4.1, Table 1)

*✓ = Recommended dimension to be considered

• *Measured above floor level

Notes:

• Grading (A, B, C) indicates priority or suitability level for dimensions.
• Cross references point to other functional groups or clauses for detailed specs.
• Thickness is less commonly specified but included where relevant.

flowchart TD
    A[Functional Group 5: Fixtures, Furniture, Equipment]
    A --> B[Domestic Living]
    A --> C[Personal Dressing & Cleansing]
    B --> B1

IS 7564 Part 5: Grading of Components & Co-ordinating Dimensions

1. Grading of Components (Clause 3.1)

• Grade A: Essential dimensional coordination (critical components/assemblies).
• Grade B: Dimensional coordination needed in some cases.
• Grade C: No dimensional coordination required.

2. Basic Size (Clause 2.9)

• Reference size fixing dimensional limits.

3. Co-ordinating Dimensions (Clause 4.1 & Table 1)

• Applies to Functional Group 5: Fixtures, furniture, equipment.
• Dimensions include Length, Width, Height, Thickness.
• Example for Domestic Living - Catering:

(*) Measured above floor level.

4. Usage Notes

• Cross-references to other functional groups are provided for integration.
• Grading guides design precision and tolerance requirements.

flowchart TD
    A[Components] --> B{Grading}
    B -->|A| C[Essential Coordination]
    B -->|B| D[Partial Coordination]
    B -->|C| E[No Coordination]
    C --> F[Strict Dimensional Limits]
    D --> G[Moderate Dimensional Limits]
    E --> H[No Dimensional Limits]

This structure ensures modular and functional compatibility in building components per IS 7564 Part 5.

IS 7564 Part 5: Co-ordinating Dimensions of Building Components

Key Points on Dimensional Coordination

• Grading of Components (Clause 3.1):

  • Grade A: Essential dimensional coordination (critical components/assemblies).
  • Grade B: Coordination needed in some situations.
  • Grade C: No dimensional coordination required.

• Dimensional Parameters (Clause 2.1):

  • Focus on length, width, height/thickness.
  • Coordination depends on the component's role and interaction with other assemblies.
  • Coordination ensures proper fit, function, and interchangeability.

Practical Recommendations

• Identify components by grading to prioritize coordination efforts.
• Use standard modular dimensions where possible to simplify coordination.
• For Grade A components, establish strict dimensional tolerances and interfaces.
• For Grade B, allow some flexibility but maintain critical dimensions.
• Grade C components can be designed independently without strict dimensional constraints.

Example Modular Coordination Table (Typical)

flowchart TD
    A[Building Components] --> B{Grade}
    B -->|A| C[Essential Coordination]
    B -->|B| D[Conditional Coordination]
    B -->|C| E[No Coordination]
    C --> F[Strict Dimensional Tolerances]
    D --> G[Flexible Dimensions]
    E --> H[Independent Design]

Summary: Use grading to decide the level of dimensional coordination, focusing on length, width, and height/thickness. Prioritize modular standardization for Grade A components for efficient assembly and compatibility.

IS 7564 Part 5 (1974) — Recommended Dimensions for Functional Group 5 (Fixtures, Furniture & Equipment)

This part provides co-ordinating dimensions for various components used in domestic, commercial, and community activities.

Key Highlights from Table 1 (Clause 4.1):

* Height measured above floor level

Grading Key:

• A: Primary dimensions, critical for design coordination.
• B: Secondary importance.
• C: Tertiary or optional dimensions.

Practical Use:

• Use these dimensions to **coordinate architectural

IS 7564 Part 5 - Key Highlights on Cross Reference to Other Functional Groups

This part covers functional group 5: Fixtures, Furniture, and Equipment, focusing on coordinating dimensions and cross-references with other groups.

Key Points from Table 1 (Clause 4.1):

• Components are graded (A, B, C) based on importance/usage.
• Coordinating dimensions include Length, Width, Height, and Thickness.
• Cross references link fixtures/furniture to other functional groups for integrated design.

Sample Extract from Table 1: Domestic Living - Catering

*Height measured above floor level.

Cross Reference Notes:

• Numbers in the last column refer to other functional groups (e.g., 3, 4).
• This ensures dimensional compatibility and integration between groups (e.g., plumbing fixtures with furniture).

Practical Use:

• Use grading to prioritize design focus.
• Coordinate dimensions for seamless integration.
• Refer to cross-reference numbers to check related functional groups for compatible design.

flowchart LR
    A[Fixtures, Furniture & Equipment] --> B[Domestic Living]
    A --> C[Commercial Catering]
    B --> D[Plumbing Fixtures (Group 4)]
    B --> E[Building Structure (Group 3)]
    C --> F[Service Areas]
    style A fill:#f9f,stroke:#333,stroke-width:2px

Summary: IS 7564 Part 5 provides recommended dimensions for furniture and

IS 7564 Part 5: Application of Modular Co-ordination - Key Points

Concept:

• Modular Co-ordination means correlating dimensions of two or more building products so they fit and function together.
• If no functional relationship exists, co-ordination is not necessary.

Functional Groups (Clause 2.2):

Component Grading (Clause 3.1):

Practical Application:

• Use modular units (e.g., multiples of 100 mm or 300 mm) for nominal sizes.
• Coordinate dimensions to simplify design, manufacture, and installation.
• Adopt standard sizes from existing Indian Standards or revise as needed.

Reference Standards:

• BSPD 6432 Parts 1 & 2 (British Standards) were used as a basis for coordination principles.

flowchart TD
    A[Building Components] --> B{Functional Group}
    B -->|1| C[Structure]
    B -->|2| D[External Envelope]
    B -->|3| E[Internal Subdivision]
    B -->|4| F[Services and Drainage]
    B -->|5| G[Fixtures, Furniture, Equipment]
    C --> H[Grading: A/B/C]
    D --> H
    E --> H
    F --> H
    G --> H

Summary: Modular co-ordination aligns dimensions across functional groups to ensure compatibility, ease of construction, and standardization. Use grading to prioritize coordination efforts.

IS 7564 Part 5: Allowance for Tolerances and Joint Clearances

Key Points from Clause 2.7

• Co-ordinating Space: Space allocated to a component, including allowances for:
  • Manufacturing tolerances
  • Joint clearances

Grading of Components (Clause 3.1)

• Grade A: Essential dimensional coordination (tightest tolerances)
• Grade B: Moderate coordination needed
• Grade C: No dimensional coordination required (largest tolerances)

Typical Allowances for Tolerances & Clearances

Formula for Co-ordinating Space (S)

[ S = D + 2T + J ]

Where:

• (D) = Nominal dimension of the component
• (T) = Allowance for tolerance (manufacturing variation)
• (J) = Joint clearance (space for assembly/movement)

Summary

• Assign grading A, B, or C based on importance.
• Add tolerance and joint clearance allowances to nominal dimensions.
• Use co-ordinating space to ensure proper fit and assembly.

flowchart LR
    A[Nominal Dimension (D)] --> B[Add Tolerance (T)]
    B --> C[Add Joint Clearance (J)]
    C --> D[Co-ordinating Space (S)]

This ensures dimensional coordination for smooth assembly and function of building components.

IS 7564 Part 5 (1974) — Fixtures, Furniture, and Equipment: Key Specifications

This part provides recommended coordinating dimensions for various fixtures, furniture, and equipment in buildings, categorized by functional activity.

Key Table: Recommended Coordinating Dimensions (Excerpt)

IS 7564 Part 5: Integration with Building Assemblies

Key Points on Coordination of Dimensions (Functional Group 5 - Fixtures, Furniture, Equipment)

• Assembly Definition (Clause 2.3):
  An assembly is a group of building components combined to perform a function.

• Dimension Coordination Principles:

  • Ensure modular coordination to align fixtures and furniture with structural grids.
  • Use standard module sizes (typically 100 mm or 300 mm increments) for components to facilitate interchangeability and ease of installation.
  • Maintain clearances for movement, maintenance, and usability.

Typical Dimension Coordination Table (Example)

General Recommendations

• Design fixtures and equipment to fit within the building’s modular grid.
• Use standardized openings and recesses in walls/floors to integrate assemblies seamlessly.
• Coordinate with architectural and structural layouts early to avoid clashes.

flowchart LR
    A[Building Structural Grid] --> B[Modular Dimensions]
    B --> C[Fixtures & Furniture]
    B --> D[Equipment]
    C --> E[Clearances & Tolerances]
    D --> E
    E --> F[Integrated Building Assembly]

This approach ensures efficient installation, flexibility, and maintenance within building assemblies.