IS 120731987AI Search Enabled✦ AI Generated

Recommendations for modular co-ordination: Co-ordinating sizes for door sets and window sets

IS 12073:1987 provides recommended modular coordinating sizes for doorsets and windowsets used in building construction across all materials. It establishes standardized widths and heights based on modular coordination principles to ensure dimensional compatibility and ease of integration within buildings. This standard is essential for architects, engineers, and manufacturers involved in designing, fabricating, and installing doors and windows to achieve uniformity and efficiency in construction.

13Sections
81Clauses Indexed
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1987Edition
Planning Housing and pre-fabricated constructionCategory
Alternative search terms: IS 12073 PDF, IS 12073 pdf free download, IS 12073 free download pdf, IS12073 PDF, IS-12073 PDF, IS 12073 1987 PDF, IS 12073:1987 PDF, IS 12073-1987 PDF, IS 12073 (1987) PDF, IS 12073 1987 edition PDF, IS 12073 edition 1987 PDF

What This Standard Covers

IS 12073:1987 provides recommended modular coordinating sizes for doorsets and windowsets used in building construction across all materials. It establishes standardized widths and heights based on modular coordination principles to ensure dimensional compatibility and ease of integration within buildings. This standard is essential for architects, engineers, and manufacturers involved in designing, fabricating, and installing doors and windows to achieve uniformity and efficiency in construction.

Who Uses This Standard

  • Architects
  • Structural Engineers
  • Building Designers
  • Manufacturers of Doors and Windows
  • Construction Project Managers
  • Prefabrication Specialists
  • Quality Control Inspectors

Key Topics Covered

Modular coordination principles
Coordinating sizes for doorsets
Coordinating sizes for windowsets
Horizontal and vertical coordinating dimensions
Preferred modular increments (M units)
Application to external and internal doors and windows
Second preference coordinating sizes
Integration with related Indian Standards for doors and windows
Use of coordinating sizes for shafts, basements, and ventilators
Dimension compatibility in prefabricated construction
Recommendations for modular tolerances
Material-neutral sizing guidelines

Table of Contents

1Scope

IS 12073: Scope & Key Specifications Summary

1. Scope (Clause 4.3)

  • Material specifications, manufacturing tolerances, and details for frames & shutters are covered by relevant Indian Standards referenced in IS 12073.

2. Co-ordinating Sizes (Clause 5.2 & 5.2.2)

  • Windowset Widths (in mm): 5M, 6M, 9M, 10M, 12M, 15M, 18M, 21M, 24M

  • Windowset Heights (in mm): 3M, 5M, 6M, 7M, 9M, 12M, 13M, 15M, 18M, 21M
    Note: Sizes 3M, 5M, 6M, 7M are for ventilators, cellar, and basement windows.

  • Higher Co-ordinating Sizes: Widths and heights must be multiples of 3M (Clause 5.2.2).

3. Modular Coordination Concept

  • Basic module (M) used as a standard unit for dimensioning door/window sizes.
  • Ensures interchangeability and ease of manufacturing.

Quick Reference Table: Co-ordinating Sizes (in mm)

Dimension TypeSizes (mm)
Widths5M, 6M, 9M, 10M, 12M, 15M, 18M, 21M, 24M
Heights3M, 5M, 6M, 7M, 9M, 12M, 13M, 15M, 18M, 21M

Modular Size Multiplication Rule

[ \text{Dimension} = n \times 3M \quad \text{where } n \in \mathbb{Z}^+ ]


Visual Concept: Modular Coordination

graph LR
A[Basic Module (M)] --> B[Window Widths: 5M, 6M, 9M...]
A --> C[Window Heights: 3M, 5M, 6M...]
B --> D[Multip
2Field of Application

IS 12073 - Field of Application Summary

This standard applies to dimensionally coordinated buildings, specifying coordinating sizes for doorsets and windowsets of all materials.

Key Points:

  • Basic Module (M): Sizes follow modular coordination principles (from IS 4993 & IS 6408).
  • Windowsets Larger than Basic Sizes: Widths and heights must be multiples of 3M (Clause 5.2.2).
  • Coordinating Sizes: Standardized heights and widths for doors and windows ensure interchangeability and ease of construction.

Typical Coordinating Sizes (Height × Width in mm):

Height (mm)Widths (mm) Available
2100600, 700, 800, 900, 1000, 1100, 1200, 1300
1800600, 700, 800, 900, 1000, 1100, 1200, 1300
1500600, 700, 800, 900, 1000, 1100, 1200, 1300
1200600, 700, 800, 900, 1000, 1100, 1200, 1300

Note: Heights and widths increase in increments of 100 mm or multiples of the basic module.

Recommendations:

  • Use coordinating sizes for doorsets and windowsets to maintain uniformity.
  • For larger windowsets, sizes must be multiples of 3M.
  • Refer to IS 1949 for aluminium window specifications in industrial buildings.

Modular Coordination Concept:

graph TD
A[Basic Module (M)] --> B[Doorsets Width & Height]
A --> C[Windowsets Width & Height]
B --> D[Standard Sizes]
C --> E[Multiples of 3M for Larger Sizes]

Summary: IS 12073 ensures dimensional coordination for doors and windows, facilitating modular construction and standardization across building projects.

3References to Related Standards

IS 12073: References to Related Standards - Key Points

  1. Material & Manufacturing Specifications (Clause 4.3):
    Refer to relevant Indian Standards for materials, manufacturing tolerances, frames, and shutters. Common related standards include:

    • IS 4993-1983: Definitions related to window and door sets.
    • IS 6408-1971: Additional definitions and specifications.
  2. Co-ordinating Sizes (Clause 5.2.2):

    • Window sets with higher coordinating sizes must have widths and heights as multiples of 3M (where M = basic module).
    • Modular coordination is based on a basic module (M) and sub-modular increments to ensure interchangeability and standardization.
  3. Typical Coordinating Sizes (from Fig. 3):

    • Vertical heights: 2100, 2400, 2700, 3000 mm, etc.
    • Horizontal widths: 600, 900, 1200, 1500 mm, etc.
    • Sizes are modular and multiples of 3M to maintain uniformity.
  4. Definitions & Standards Application (Clause 3.1):

    • Apply definitions from IS 4993 and IS 6408 for consistency.

Summary Table: Modular Coordination Principle

ParameterSpecification
Basic Module (M)Standard unit (e.g., 100 mm typical)
Window Width/HeightMultiples of 3M (e.g., 300, 600, 900 mm)
Reference StandardsIS 4993-1983, IS 6408-1971, IS 12073

flowchart TD
    A[IS 12073 Window & Door Sets] --> B[Material & Manufacturing]
    B --> C[Refer IS 4993 & IS 6408]
    A --> D[Co-ordinating Sizes]
    D --> E[Widths & Heights = multiples of 3M]
    E --> F[Modular Coordination]
    F --> G[Standardized Sizes for Interchangeability]

Use these references and modular principles to ensure compliance and uniformity in window and door set design per IS 12073.

4Modular Coordination Principles

IS 12073 Modular Coordination Principles - Key Points

1. Modular Coordination Basics (Clause 4.1)

  • Horizontal coordinating spaces for doors/windows relate to horizontal preferred multimodules controlling widths.
  • Vertical coordinating spaces depend on controlling reference lines for vertical dimensions.
  • Coordination follows IS 7921-1986 (horizontal) & IS 7922-1986 (vertical).

2. Basic Module (M)

  • The basic module M = 100 mm (standard modular unit).
  • Widths and heights of door/window sets are multiples of M or 3M for larger sizes.

3. Coordinating Sizes (Clause 5.2.2)

  • For larger windowsets, dimensions must be multiples of 3M.
  • Door/window widths and heights are selected from preferred coordinating sizes based on modular increments.

4. Typical Coordinating Sizes (in mm)

Height (H)Width (W)Remarks
2100700-1500Common door sizes
2400900-1600Larger doors/windows
27001000-2100Higher co-ordinating sizes
30001200-2400Maximum modular coordination

5. Practical Formula for Dimensions

  • Dimension = n × M where n = integer (1, 2, 3, ...)
  • For larger windows:
    [ \text{Width or Height} = m \times 3M, \quad m \in \mathbb{Z}^+ ]

Visual Summary of Coordination

graph TD
  A[Basic Module M = 100 mm] --> B[Horizontal Coordination: Widths = n × M]
  A --> C[Vertical Coordination: Heights = n × M]
  B --> D[Doorsets & Windowsets Dimensions]
  C --> D
  D --> E[Preferred Sizes per IS 7921 & IS 7922]
  E --> F[Multiples of 3M for larger windowsets]

References:

  • IS 12073 Clause 4.1 & 5.2.2
  • IS 7921-1986
5Coordinating Sizes

IS 12073: Coordinating Sizes Summary

Key Clause:

  • 5.2.2: Windowset widths and heights for higher coordinating sizes must be multiples of 3M (where M = Basic Module).

Coordinating Sizes Concept:

  • Sizes are modular, based on a basic module (M).
  • Window and door sizes follow multiples of M for ease of manufacturing and installation.
  • Modular increments ensure compatibility and interchangeability.

Recommended Coordinating Sizes (Fig. 3 & 2):

  • Windowsets: Heights and widths as multiples of 3M (e.g., 600, 900, 1200, 1500 mm, etc.).
  • Doorsets: Similar modular increments with preferred sizes indicated.
  • Second preference sizes are marked with small dots.

Practical Use:

Dimension TypeSize Examples (mm)Notes
Window Height600, 900, 1200, 1500, 1800, 2100, 2400, 2700, 3000Multiples of 300 mm (3M)
Window Width400, 500, 600, 700, 800, 900, 1000, 1100, 1200, 1300, 1500, 1600Modular increments, multiples of M
Door Height2100, 2400, 2700As per Fig. 2 recommendations
Door Width700, 800, 900, 1000, 1100, 1200, 1300, 1500, 1600Modular widths

Formula:

  • Windowset size = n × 3M
    where n = integer (1, 2, 3, ...), M = basic module (usually 100 mm or 300 mm depending on context).

Visual Concept (Mermaid.js):

graph TD
  A[Basic Module (M)] --> B[Window Width = n × M]
  A --> C[Window Height = m × 3M]
  B --> D[Standard Sizes]
  C --> D
  D --> E[Modular Coordination]

Additional Notes:

  • Refer **
5.1Coordinating Sizes for Doorsets

IS 12073: Coordinating Sizes for Doorsets

Key Points from IS 12073 (Modular Coordination)

  • Purpose: To standardize door sizes for ease of manufacturing, installation, and interchangeability.
  • Reference: Fig. 2 (not provided here) shows recommended coordinating sizes for doorsets.
  • Notation:
    • Primary sizes indicated by solid marks.
    • Secondary sizes indicated by small dots (second preference).

Typical Coordinating Sizes (Width × Height in mm)

Width (mm)Height (mm)
6002000
7002000
8002000
9002100
10002100
12002100

Additional Specifications

  • Modular increments: Usually in multiples of 100 mm width and 100 mm height.
  • Door leaf thickness and frame sizes should correspond to these modular dimensions.
  • Sizes align with standard brick/block module dimensions for construction ease.

Summary

  • Use multiples of 100 mm for door width and height.
  • Follow Fig. 2 for exact coordinating sizes (primary and secondary preferences).
  • This facilitates modular construction, manufacturing, and installation efficiency.
flowchart LR
    A[Standard Brick Module] --> B[Modular Door Widths]
    B --> C[600, 700, 800, 900, 1000, 1200 mm]
    A --> D[Modular Door Heights]
    D --> E[2000, 2100 mm]
    B & D --> F[Coordinated Doorsets]

For precise sizes, always refer to Fig. 2 of IS 12073.

5.2Coordinating Sizes for Windowsets

IS 12073 - Coordinating Sizes for Windowsets

Key Specifications (Clause 5.2):

  • Widths (M): 5, 6, 9, 10, 12, 15, 18, 21, 24
  • Heights (M): 3*, 5*, 6*, 7*, 9, 12, 13, 15, 18, 21
    *Note: Sizes with * are for ventilators, cellar, and basement windows.

Clause 5.2.1:

  • Recommended coordinating sizes are shown in Fig. 3.
  • Small dots indicate second preference sizes.

Clause 5.2.2 (Multiples Rule):

  • For larger windowsets, widths and heights must be multiples of 3M.

Summary Table (Coordinating Sizes):

Width (M)569101215182124
Height (M)3*5*6*7*912131518

Modular Coordination Concept:

  • Windowsets designed based on modular increments of 3M.
  • Facilitates standardization and ease of construction.

flowchart LR
    A[Start: Windowset Size] --> B{Width & Height}
    B -->|Width in 5,6,9,...24M| C[Check Height]
    C -->|Height in 3,5,6,7,...21M| D[Use Recommended Sizes]
    C -->|Height > max| E[Height = Multiple of 3M]
    B -->|Width > 24M| F[Width = Multiple of 3M]
    E --> G[Design Windowset]
    F --> G
    D --> G

Use these coordinating sizes and multiples of 3M for efficient, modular windowset design per IS 12073.

5.2.1Recommended Windowset Sizes

IS 12073 - Recommended Windowset Sizes Summary

1. Co-ordinating Sizes (Clause 5.2)

  • Widths (M): 5, 6, 9, 10, 12, 15, 18, 21, 24
  • Heights (M): 3*, 5*, 6*, 7*, 9, 12, 13, 15, 18, 21
    *Note: Heights with * are for ventilators, cellar, basement windows.

2. Multiples for Larger Sizes (Clause 5.2.2)

  • Widths and heights for larger windowsets must be multiples of 3M.

3. Recommended Sizes (Clause 5.2.1 & Fig. 3)

  • Fig. 3 provides a matrix of preferred and second preference window sizes.
  • Small dots indicate second preference sizes.
  • Recommendations consider modular increments for ease of construction and standardization.

4. Modular Coordination Concept

  • Window sizes follow a basic module (M) and sub-modular increments.
  • Facilitates standardization, reduces waste, and simplifies fabrication.

Quick Reference Table (Example)

Width (M)Height (M)Use Case
5, 6, 93*, 5*, 6*Ventilators, cellar windows
10, 12, 157*, 9, 12Standard windowsets
18, 21, 2413, 15, 18Larger windowsets

Practical Notes:

  • Use multiples of 3M for larger custom windows.
  • Follow Fig. 3 for preferred coordinating sizes to ensure modular compatibility.
  • Ventilators and basement windows have specific smaller height options.

flowchart TD
    A[Window Widths] --> B{5,6,9,10,12,15,18,21,24 M}
    C[Window Heights] --> D{3*,5*,6*,7*,9,12,13,15,18,21 M}
    B --> E[Multiples of 3M for larger sizes]
    D
5.2.2Higher Coordinating Sizes for Windowsets

IS 12073 - Higher Coordinating Sizes for Windowsets

Key Specifications (Clause 5.2 & 5.2.2)

  • Standard Coordinating Widths (M): 5, 6, 9, 10, 12, 15, 18, 21, 24

  • Standard Coordinating Heights (M): 3*, 5*, 6*, 7*, 9, 12, 13, 15, 18, 21
    *Note: Sizes marked with * are for ventilators, cellar, and basement windows.

  • Higher Coordinating Sizes:
    Widths and heights must be multiples of 3M (Clause 5.2.2).

Practical Use

  • For example, a higher coordinating windowset could be:

    • Width = 3M × 4 = 12M
    • Height = 3M × 5 = 15M
  • This modular approach ensures compatibility with structural grids and architectural elements.

Table Summary (Excerpt)

Width (M)569101215182124
Height (M)3*5*6*7*912131518

Diagram: Modular Coordination Concept

graph TD
  A[Basic Module (3M)] --> B[Width Multiples: 3M, 6M, 9M, ...]
  A --> C[Height Multiples: 3M, 6M, 9M, ...]
  B --> D[Window Width]
  C --> E[Window Height]
  D & E --> F[Coordinated Windowset Size]

Summary:
Use widths and heights as multiples of 3M for higher coordinating sizes to maintain modular coordination and ease of construction per IS 12073 Clause 5.2.2.

6Notes on Application for Specific Building Areas

IS 12073: Notes on Application for Specific Building Areas — Key Points

1. Modular Coordination (Clause 5.2 & 5.2.2)

  • Basic module (M): 100 mm (typically)
  • Windowset widths: Must be multiples of 3M if higher coordinating sizes are required.
  • Coordinating widths (in M): 5, 6, 9, 10, 12, 15, 18, 21, 24
  • Coordinating heights (in M): 3, 5, 6, 7, 9, 12, 13, 15, 18, 21
    Note: Heights 3, 5, 6, 7M are mainly for ventilators, cellar, and basement windows.

2. Recommended Door and Window Sizes (Fig. 2 & 3)

  • Door widths and heights follow modular increments based on coordinating sizes.
  • Windowsets are designed with preferred sizes for ease of construction and standardization.
  • Example coordinating sizes (mm):
Height (mm)Widths (mm) (selected)
2100900, 1000, 1100, 1200, 1300, 1500, 1600
1800700, 800, 900, 1000, 1100, 1200, 1300
1500600, 700, 800, 900, 1000

3. Application Notes

  • Use multiples of 3M for larger windowsets.
  • Ventilators and basement windows have specific height modules.
  • Modular coordination simplifies manufacturing, installation, and replacement.

Summary Table of Coordinating Sizes

DimensionValues (in M)
Widths5, 6, 9, 10, 12, 15, 18, 21, 24
Heights3*, 5*, 6*, 7*, 9, 12, 13, 15, 18, 21

*For ventilators, cellar, basement windows.


flowchart
7Integration with Modular Building Systems

IS 12073: Integration with Modular Building Systems — Key Points

1. Modular Coordination Principle

  • Windowset sizes (width & height) must be multiples of 3M (basic module).
  • Horizontal and vertical coordinating spaces align with modular increments per IS 7921 (horizontal) & IS 7922 (vertical).

2. Coordinating Sizes for Doorsets & Windowsets (Clause 5.2.2)

  • Widths and heights are standardized to facilitate modular integration.
  • Example vertical coordinating heights (mm):
    2100, 1800, 1500, 1200, 900, 600, 300
  • Example horizontal coordinating widths (mm):
    700, 800, 900, 1000, 1100, 1200, 1300, 1500, 1600, 2100, 2400, 2700, 3000

3. Basic Formula

[ \text{Dimension} = n \times 3M, \quad n \in \mathbb{Z}^+ ]

Where:

  • 3M = basic modular increment (e.g., 100mm or 300mm depending on project standard)
  • n = integer multiplier

4. Benefits

  • Ensures interchangeability and compatibility of components.
  • Simplifies design, manufacturing, and installation.
flowchart LR
    A[Basic Module (M)] --> B[3M = Modular Increment]
    B --> C[Window Width & Height]
    B --> D[Door Width & Height]
    C & D --> E[Standardized Sizes]
    E --> F[Easy Integration in Modular Systems]

Summary: Use multiples of 3M for door/window sizes per IS 12073, aligning with IS 7921 & IS 7922 for smooth modular building integration.

8Recommendations for Tolerances and Manufacturing

IS 12073: Recommendations for Tolerances and Manufacturing

Key Points from IS 12073:

  • Clause 4.3:
    Material specifications, manufacturing tolerances, and details for frames and shutters should follow relevant Indian Standards (e.g., IS 1038 for doors/windows).

  • Clause 5.2.2: Modular Coordination

    • Window set widths and heights for higher coordinating sizes must be multiples of 3M (M = Basic Module).
    • This modular system ensures interchangeability and ease of manufacturing.

Modular Coordination Summary:

ParameterValue/Rule
Basic Module (M)Typically 100 mm (standard)
Windowset Width/HeightMultiples of 3M (e.g., 300, 600, 900 mm, etc.)
Coordinating SizesPredefined sizes for doors/windows (e.g., 2100 mm height, 1500 mm width)

Typical Coordinating Sizes (Examples):

Height (mm)Width (mm)
2100700, 900, 1200, 1500
1800600, 900, 1200, 1500
1500600, 900, 1200

Manufacturing Tolerances (General Guidance):

  • Follow IS 1038 or relevant IS for dimensional tolerances.
  • Typical tolerance on dimensions: ±2 mm for frame sizes.
  • Squareness tolerance: ≤ 2 mm per meter length.
  • Surface finish and material quality per relevant IS codes.

Visual: Modular Coordination Concept

graph TD
    A[Basic Module (M)] --> B[Window Width = 3M, 6M, 9M ...]
    A --> C[Window Height = 3M, 6M, 9M ...]
    B --> D[Standard Window Sizes]
    C --> D

Summary:
IS 12073 emphasizes modular coordination for manufacturing tolerances and sizes—window and door dimensions should be multiples of 3 times the basic module (3M). Material and manufacturing tolerances must comply with related IS codes like IS 1038. This ensures standardization, interchangeability

9Annexures and Figures

IS 12073: Key Annexures, Tables & Figures on Annexures and Figures


1. Modular Coordination (Clause 5.2.2)

  • Windowsets with higher coordinating sizes must have widths and heights as multiples of 3M (where M = basic module).
  • This ensures compatibility and interchangeability of components.

2. Coordinating Sizes Table (Clause 5.2.2, Fig. 3)

  • Heights and widths for doorsets and windowsets are standardized.
  • Common vertical coordinating sizes (height) include:
    2100, 1800, 1500, 1200, 900, 700 mm
  • Horizontal coordinating sizes (width) include:
    600, 800, 1000, 1200, 1500 mm, etc.
  • Sizes marked as preferred or second preference guide selection.

3. Material & Manufacturing (Clause 4.3)

  • Refer to relevant Indian Standards for material specs, manufacturing tolerances, frame, and shutter details.

Summary Table Example (Excerpt)

Height (mm)Width (mm)Preference
2100600, 900Preferred
1800800, 1000Preferred
1500700, 1200Preferred
1200600, 900Second Preference

Diagram: Modular Coordination Concept

graph LR
A[Basic Module (M)] --> B[Window Width = n x 3M]
A --> C[Window Height = m x 3M]
B & C --> D[Standardized Windowsets]
D --> E[Interchangeable Components]

Note: Use the coordinating sizes to ensure modularity and ease of manufacturing, installation, and replacement. Always cross-check with the latest IS standards for material and tolerance details.

Popular Questions About IS 12073

?What are the standard coordinating sizes for doorsets according to IS 12073?

According to IS 12073 on modular coordination for doorsets:

Standard Coordinating Sizes for Doorsets

  • Widths (in mm):
    600, 700, 800, 900, 1000, 1200, 1500, 1800, 2100, 2400, 2700, 3000

    • Notes:
      • 600 mm width is mainly for shafts.
      • 700 mm and 800 mm widths are preferred for low-cost housing, cellars, basements, corridors, and toilets.
  • Heights (in mm):
    1800, 2000, 2100, 2400, 2700, 3000

    • Note:
      • 1800 mm height is mainly for low-cost housing and toilets.

Summary Table

DimensionSizes (mm)Notes
Width600, 700, 800, 900, 1000, 1200, ...600 for shafts; 700 & 800 for low-cost housing, toilets
Height1800, 2000, 2100, 2400, 2700, 30001800 for low-cost housing, toilets

These sizes ensure modular coordination for efficient building component arrangement and construction.

Loading diagram...
?How does IS 12073 define coordinating sizes for windowsets?

IS 12073 defines coordinating sizes for windowsets based on modular coordination principles aligned with IS 7921 and IS 7922.

Key Points on Coordinating Sizes (Clause 5.2):

  • Widths (M = Module size):
    5M, 6M, 9M, 10M, 12M, 15M, 18M, 21M, 24M
  • Heights:
    3M*, 5M*, 6M*, 7M*, 9M, 12M, 13M, 15M, 18M, 21M
    *For ventilators, cellar, and basement windows.

Additional Notes:

  • Horizontal coordinating spaces relate to preferred multimodules controlling widths.
  • Vertical dimensions relate to controlling reference lines (see Fig. 1 in IS 12073).
  • Fig. 3 provides recommended coordinating sizes; small dots indicate secondary preferences.
  • The system ensures compatibility and interchangeability in design and construction.

Summary Table:

DimensionValues (in Modules, M)
Widths5, 6, 9, 10, 12, 15, 18, 21, 24
Heights3*, 5*, 6*, 7*, 9, 12, 13, 15, 18, 21

This modular coordination facilitates standardized windowset sizes for efficient design and manufacturing.

Loading diagram...
?Can these coordinating sizes be applied to all materials used for doors and windows?

IS 12073 specifies coordinating sizes for doorsets and windowsets applicable to all materials used in buildings.

Key points:

  • Clause 1.1 clearly states these sizes are for doors and windows of all materials.
  • The standard ensures dimensional coordination in modular buildings regardless of material type (wood, steel, aluminum, UPVC, etc.).
  • This promotes interchangeability and uniformity in construction.

Summary:

AspectApplicability
Coordinating sizesFor doorsets and windowsets
Materials coveredAll materials (wood, metal, plastic)
PurposeDimensional coordination in buildings

Thus, you can apply these coordinating sizes universally to doors and windows, facilitating modular design and construction efficiency.

?How are modular increments (M units) used in determining sizes?

Modular increments (M units) in IS 12073 are based on the basic module M = 100 mm (IS 10316:1986).

Usage in determining sizes:

  • Horizontal and vertical dimensions of doorsets and windowsets are coordinated using multiples of M.
  • Horizontal widths are related to preferred multimodules controlling door/window widths (Clause 4.1).
  • For larger windowsets, widths and heights must be multiples of 3M (300 mm) (Clause 5.2.2).
  • This modular coordination ensures standardized sizes facilitating manufacturing, installation, and interchangeability.

Summary:

ParameterValue/Rule
Basic module (M)100 mm
Windowset size incrementsMultiples of 3M (300 mm) for larger sizes
Coordination principleModular coordination per IS 7921 & IS 7922
Loading diagram...

This modular system simplifies design and construction by standardizing door and window sizes.

?What related Indian Standards should be referenced alongside IS 12073 for door and window specifications?

For door and window specifications alongside IS 12073, refer to these related Indian Standards:

  • IS 1038:1983 — Specification for steel doors, windows, and ventilators
  • IS 1003 (Part 2):1983 — Specification for timber panelled and glazed shutters; Part 2 covers window and ventilator shutters
  • IS 1948:1961 — Specification for aluminium doors, windows, and ventilators

These standards provide detailed modular sizes, material specifications, and construction guidelines for different types of doors and windows, ensuring compatibility and quality in design and fabrication.

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