Method of measurement of building and civil engineering works, Part 7: Hardware
1972 Edition

IS 1200 Part 7 (1972) - Overview & Essential Details

This section establishes a unified method for quantifying hardware employed in building and civil engineering works, promoting consistency among various agencies.

Highlights from Introduction (Clauses 0.1 to 0.5):

• Standardizing measurements enhances clarity, minimizes misunderstandings, and supports uniform billing and execution.
• Scope includes hardware such as bolts, hinges, latches, locks, fasteners, and brackets.
• Rounding rules adhere to IS 2:1960 standards.
• The revision extends applicability to civil engineering projects beyond building construction.

Summary of Measurement Methods (Table 1 Extract):

Rounding Guidelines (IS 2:1960):

• Round measurements to the specified number of significant digits.
• Example: 12.345 rounded to three significant figures becomes 12.3.

Visual Flow of Measurement Process

flowchart TD
    A[Identify Hardware Item] --> B[Consult Table 1 for Measurement Method]
    B --> C[Measure Dimensions as per Clause 3.1]
    C --> D[Apply IS 2:1960 Rounding Rules]
    D --> E[Record Measurement for Costing and Payment]

Refer to Table 1 of IS 1200 Part 7 for comprehensive item-wise measurement details, ensuring uniform hardware quantification in civil works.

IS 1200 Part 7 (1972) - Scope Overview

• Scope: Defines the measurement methodology for builder’s hardware in building and civil engineering projects.

• Encompasses detailed description and separate measurement by:

  • Material type
  • Surface finish
  • Dimensions
  • Design pattern
  • Fixing technique

• Applicable to civil engineering works, including industrial and river valley projects.

• Aims to harmonize measurement practices across various departments for improved clarity.

• Final measurements are rounded in line with IS 2:1960 numerical rounding rules.

Summary Table:

flowchart LR
    A[Hardware Items] --> B[Material Type]
    A --> C[Surface Finish]
    A --> D[Dimensions]
    A --> E[Design Pattern]
    A --> F[Fixing Method]
    B & C & D & E & F --> G[Separate Quantification]
    G --> H[Consistent Measurement System]

This framework guarantees consistency and transparency in hardware measurements for project management and billing.

IS 1200 Part 7 (1972) – Foundational Principles for Hardware Measurement

Coverage:

• Establishes uniform measurement protocols for hardware in construction and civil engineering.
• Promotes consistency among diverse organizations.

Key Measurement Instructions (Extract from Table 1)

Rounding Instructions:

• Measurements must be rounded following IS 2-1960 norms.

Flowchart of Measurement Process

graph TD
A[Hardware Types] --> B[Bolts]
A --> C[Hinges]
A --> D[Locks]
A --> E[Cleats]
A --> F[Fasteners]
A --> G[Shelving Brackets]
A --> H[Knobs]
A --> I[Door Closers]

B --> B1[Measure face plate or bolt shoot length]
C --> C1[Measure knuckle length, flange width, leaf length]
D --> D1[Measure face length and knob diameter]
E --> E1[Measure straight distance]
F --> F1[Measure handle and back plate length]
G --> G1[Measure width and height]
H --> H1[Measure maximum diameter]
I --> I1[Record weight and door width]

This standard guarantees uniform measurement techniques to support clear tendering, execution, and payment processes.

IS 1200 Part 7 (1972) - Item Description Essentials

• Clause 2.1: Item Description Descriptions must cover:

  • Transportation, delivery, handling, unloading, storage
  • Labor involved in fixing, cutting, and allowance for waste
  • Return of packaging materials

• Clause 2.4.1: Measurement of Specific Builder’s Hardware Certain items are quantified in running meters with details:

  Item	Measurement Details
  Curtain rods/poles	Outer diameter must be specified
  Curtain rails	Includes runners, brackets, stops; quantity per meter indicated
  Sliding sash rails	Size of rail must be recorded
  Sash lines	Girth or diameter specified

• Clause 2.4: Measurement Mode Hardware must be distinctly described and measured by:

  • Material
  • Finish
  • Size
  • Pattern
  • Fixing method

Description Summary Table

This ensures unambiguous measurement and billing clarity in civil engineering hardware.

IS 1200 Part 7 - Measurement Boundaries Overview

• Measurement System: Dimensions are recorded as net values using the decimal system, precise to 0.01 meters (Clause 2.2).

• Rounding Off Protocols: Final dimensions are rounded following IS 2-1960 rules, preserving the specified number of significant figures.

• Hardware Size Measurement (Clauses 3.1 & Table 1): Specific dimensions are used per hardware category, for example:

  Hardware Type	Measurement Description
  Bolts	Face plate length (flush bolts) or bolt shoot length
  Hinges	Joint/knuckle length, flange spacing, leaf length
  Mortice Locks	Horizontal face length excluding box staple
  Knobs	Maximum diameter
  Door Bands	Grip length
  Sliding Door Bolts	Bolt length
  Shelving Brackets	Overall width and height

• Additional Notes: Hardware that is flush mounted must be explicitly described (Clause 2.7).

Measurement Summary Table

flowchart TD
    A[Measure Hardware] --> B{Hardware Type}
    B -->|Bolt| C[Measure face plate or shoots length]
    B -->|Hinge| D[Measure joint length, flange width, leaf length]
    B -->|Lock| E[Measure horizontal face length excluding staple]
    B -->|Knob| F[Measure maximum diameter]
    B -->|Door Band| G[Measure grip length]

References: IS 1200 Part 7 (1972), Clauses 2.2, 2.7, 3.1, Table 1; IS 2-1960.

IS 1200 Part 7 - Bills of Quantities (BoQ) and Hardware Measurement

Essential Points:

• Clause 2.3: BoQ must comprehensively describe materials and workmanship, accurately reflecting the scope of work.
• Clause 2.4.1: Certain hardware items are quantified in running meters with detailed specifications:
  • Curtain rods/poles (state outer diameter)
  • Curtain rails (include runners, brackets, stops; specify quantity per meter)
  • Sliding sash rails (size specified)
  • Sash lines (girth/diameter specified)

BoQ Specification Table

BoQ Guidelines

• Apply IS 2-1960 rounding rules for numerical data.
• Quantities must be clear, precise, and complete.
• Include descriptions of material quality and workmanship.
• Differentiate between linear measured items and those counted individually.

flowchart TD
    A[Prepare Bills of Quantities] --> B[Material Descriptions]
    A --> C[Workmanship Details]
    A --> D[Measurement Units]
    D --> E[Running meters for specified hardware]
    E --> F[Curtain rods/poles]
    E --> G[Curtain rails]
    E --> H[Sliding sash rails]
    E --> I[Sash lines]

This ensures clarity, standardization, and consistent measurement for hardware per IS 1200 Part 7.

IS 1200 Part 7 (1972) — Procedures for Measuring Hardware

Highlights:

• Clause 2.4: Measure builders’ hardware individually based on:

  • Material type
  • Surface finish
  • Size
  • Pattern or design
  • Fixing method

• Clause 2.2: Record net dimensions in decimal notation, rounded to the nearest 0.01 m.

• Rounding: Follow IS 2-1960 rounding rules, keeping the specified significant figures.

Practical Guidelines:

• Measuring hardware separately prevents cost ambiguities.
• Use actual net sizes, excluding overlaps.
• Maintain accuracy to 1 cm (0.01 m) for consistency.

Measurement Parameter Summary

flowchart TD
    A[Start Measurement] --> B{Identify Hardware Type}
    B --> C[Record Material]
    B --> D[Record Finish]
    B --> E[Measure Net Size (0.01 m)]
    B --> F[Note Pattern]
    B --> G[Note Fixing Method]
    C & D & E & F & G --> H[Document Separately]
    H --> I[Apply IS 2 Rounding]
    I --> J[Finalize Recorded Measurement]

This method guarantees transparent, uniform, and IS-compliant hardware measurement.

IS 1200 Part 7 — Guidelines for Fixing Hardware Components

Fixing Scope (Clause 2.5):

• Includes all operations such as fitting, cutting, sinking, boring, and morticing.
• Supply of necessary fasteners including screws, bolts, nuts, and washers is part of fixing.
• Fasteners should be compatible with the hardware type.

Flush Fixing (Clause 2.7):

• Hardware mounted flush with surfaces must be clearly specified.

Measurement (Clause 2.6):

• Hardware fixed to timber and metal is measured distinctly.
• Measurements include all fixing accessories like screws and bolts.

Typical Fixing Examples

General Fixing Dimensions

• Screw length = hardware thickness + base material thickness + 5 mm embedment.
• Bolt size typically 1.5 times the hardware hole diameter.

flowchart LR
    A[Hardware Item] --> B[Cutting and Morticing]
    B --> C[Sinking and Boring]
    C --> D[Supply and Application of Fasteners]
    D --> E[Fixing to Wood or Metal]
    E --> F[Separate Measurement]

Summary: IS 1200 Part 7 stresses comprehensive fixing operations including preparation and compatible fasteners, with clear segregation of wood and metal fixings.

IS 1200 Part 7 — Measurement Protocols for Hardware Attached to Wood and Metal

Important Clauses:

• Clause 2.6: Hardware fixed to wood and metal should be measured separately.
• Clause 2.7: Flush-mounted hardware must be explicitly described.
• Clause 2.4: Hardware measurements are categorized by material, finish, size, pattern, and fixing method.

Measurement Criteria

Measurement Approach

Measure flush or surface-mounted hardware by:

• Length × Width (for plates and hinges)
• Diameter × Length (for bolts and screws)
• Enumeration for items such as handles and locks

Measurement Units Table

flowchart LR
    A[Hardware] --> B{Material Type}
    B --> C[Wood]
    B --> D[Metal]
    C & D --> E[Measure Separately]
    E --> F{Fixing Type}
    F --> G[Flush Mounted]
    F --> H[Surface Fixed]
    G --> I[Explicitly Describe as Flush]
    H --> J[Describe as Surface Mounted]

Summary: Accurate measurement requires separating hardware fixed to wood and metal, specifying flush fixing when applicable, and recording all relevant attributes as per IS 1200 Part 7.

IS 1200 Part 7 — Guidelines for Flush-Mounted Hardware Description

Definition (Clause 2.7)

• Flush-mounted hardware is installed so that its surface aligns evenly with the adjoining surface, e.g., hinges or flush bolts.
• Must be precisely described including type, size, material, finish, and fixing method.

Measurement Details (Clauses 2.4 to 2.6)

• Description to include:

  • Material (e.g., steel, brass)
  • Surface finish (polished, painted)
  • Size (length, width, thickness)
  • Pattern or design
  • Fixing method (screws, bolts, welding)

• Fixing includes all related work: fitting, cutting, boring, morticing, and supply of fasteners.

• Hardware fixed to wood and metal should be measured separately.

Example Measurement Table

Diagram: Flush-Mounted Hardware

graph LR
A[Flush-Mounted Hardware] --> B[Surface Level with Frame/Door]
A --> C[Includes Hinges, Flush Bolts]
A --> D[Measured by Size, Material, Finish]
A --> E[Fixing via Screws/Bolts and Morticing]

Summary: Flush-mounted hardware must be fully described and measured by all relevant parameters, including associated fixing work, with separate tallies for wood and metal fixings.

IS 1200 Part 7 — Measurement of Hardware Dimensions

Key Provisions (1972 Edition)

• Clause 2.4: Hardware should be described and measured distinctly by:

  • Material
  • Finish
  • Size
  • Pattern
  • Fixing method

• Clause 2.7: Flush-mounted hardware must be specifically noted.

Measurement Guidelines

General Formula

[ \text{Size} = \text{Length} \times \text{Width} \times \text{Thickness (if applicable)} ]

Additional Notes

• Always specify material and finish (e.g., brass, stainless steel, painted).
• Mention pattern or design when relevant.
• Dimensions are typically in millimeters.
• Flush-mounted hardware requires explicit fixing description.

flowchart TD
    A[Hardware] --> B{Type}
    B --> C[Bolts and Screws]
    B --> D[Hinges]
    B --> E[Handles and Locks]
    B --> F[Flush-Mounted Hardware]
    C --> G[Measure Length & Diameter]
    D --> H[Measure Length & Width]
    E --> I[Measure Overall Dimensions]
    F --> J[Measure Thickness, Length, Width]

This guarantees precise and standardized size measurement for accurate billing and compliance.

IS 1200 Part 7 — Measurement Details for Hardware Components

Highlights:

• Clause 2.4: Hardware is measured considering:

  • Material (e.g., brass, steel)
  • Finish (polished, painted)
  • Size (per manufacturer or IS standards)
  • Pattern (design/type)
  • Fixing method (flush, surface-mounted)

• Clause 2.6: Hardware fixed to wood and metal is measured separately.

• Clause 2.7: Flush-mounted hardware requires distinct description.

Typical Measurement Details Table:

Practical Recommendations:

• Always specify material and finish in descriptions.
• Measure flush-mounted hardware by actual area or quantity.
• Quantify wood-fixed and metal-fixed hardware separately.

flowchart LR
    A[Hardware Components] --> B{Material}
    A --> C{Finish}
    A --> D{Size}
    A --> E{Pattern}
    A --> F{Fixing Method}
    F --> G[Flush Mounted]
    F --> H[Surface Mounted]
    G --> I[Measure Area or Count]
    H --> J[Measure per Piece]

This approach promotes clarity and consistency in hardware measurement and billing.