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

IS 1200 Part 7 (1972) - Introduction & Key Specifications

This part standardizes the method of measurement of hardware used in building and civil engineering works, aiming to unify diverse measurement practices across agencies.

Key Points from Introduction (Clauses 0.1 to 0.5):

• Measurement standardization improves clarity, reduces ambiguity, and facilitates uniformity in billing and project execution.
• It covers hardware items like bolts, hinges, latches, locks, fasteners, brackets, etc.
• Rounding off measurements follows IS 2:1960 rules.
• The standard was revised to include civil engineering works beyond buildings.

Measurement Table Summary (Table 1 Highlights):

Rounding Off Rule (IS 2:1960):

• Round to the same number of significant figures as specified.
• Example: 12.345 rounded to 3 significant figures = 12.3

Summary Diagram of Measurement Process

flowchart TD
    A[Identify Hardware Item] --> B[Refer 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 Final Measurement for Estimation/Payment]

For detailed item-wise measurement methods, refer to Table 1 of IS 1200 Part 7. This ensures uniformity in hardware measurement for civil works.

IS 1200 (Part VII) - 1972: Scope Summary

• Scope: Specifies the method of measurement of builders' hardware in building and civil engineering works.

• Covers description and separate measurement of hardware by:

  • Material
  • Finish
  • Size
  • Pattern
  • Method of fixing

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

• Measurement standardization aims to unify practices across agencies and departments for clarity and uniformity.

• Final measured values should be rounded off as per IS 2:1960 rules on numerical rounding.

Key Points:

flowchart LR
    A[Hardware Items] --> B[Material]
    A --> C[Finish]
    A --> D[Size]
    A --> E[Pattern]
    A --> F[Fixing Method]
    B & C & D & E & F --> G[Separate Measurement]
    G --> H[Unified Measurement System]

This ensures uniformity and clarity in measurement for planning, execution, and payment settlement.

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

Scope:

• Covers standardized methods of measurement for hardware used in buildings and civil engineering works.
• Ensures uniformity across various agencies and departments.

Key Specifications & Measurement Guidelines (Table 1 Extract)

Rounding Off:

• Final measurement values shall be rounded as per IS 2-1960 rules.

Summary Diagram (Mermaid.js)

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

B --> B1[Measure length of face plate/shoots]
C --> C1[Measure joint length, flange width, leaf length]
D --> D1[Measure face length, knob diameter]
E --> E1[Measure straight distance]
F --> F1[Measure handle length, back plate length]
G --> G1[Measure width & height]
H --> H1[Measure max diameter]
I --> I1[State weight & door width]

This standard ensures uniform measurement methods for hardware, facilitating clarity in tendering, execution, and payment across civil engineering projects.

IS 1200 Part 7 (1972) - Key Points on Description of Items

• Clause 2.1: Description of Item
  Each item description includes:

  • Conveyance, delivery, handling, unloading, storing
  • Labour for fitting, fixing, cutting, waste
  • Return of packing materials

• Clause 2.4.1: Measurement of Builders Hardware
  Certain hardware items are measured in running metres with specifications:

  Item	Measurement Details
  Curtain rods/poles	Outer diameter to be stated
  Curtain rails	Include runners, brackets, stops; number per metre stated
  Rails for sliding sashes	Size of rail to be stated
  Sash lines	Girth or diameter to be stated

• Clause 2.4: Mode of Measurement
  Builders hardware must be separately described and measured by:

  • Material
  • Finish
  • Size
  • Pattern
  • Method of fixing

Summary Table for Hardware Measurement

This ensures clarity in measurement and billing, avoiding ambiguity in civil engineering hardware works.

IS 1200 (Part 7) - Limits of Measurement: Key Points

• Measurement System:
  Dimensions are measured net in the decimal system to the nearest 0.01 m (Clause 2.2).

• Rounding Off:
  Final measured values shall be rounded off as per IS 2-1960 (Rules for rounding off numerical values), maintaining the same number of significant digits as specified.

• Measurement of Hardware Sizes (Clause 3.1 & Table 1):
  Hardware articles are measured as per specific dimensions, e.g.:

  Article	Measurement Description
  Bolts	Length of face plate (flush bolts) or length of shoots
  Hinges	Length of joint/knuckle, width between flanges, leaf length
  Locks (Mortice)	Horizontal length of face excluding box staple
  Knobs	Maximum diameter
  Door Bands	Grip length
  Sliding Door Bolt	Length of bolt
  Brackets for Shelving	Extreme width and height

• General Note:
  Hardware fixed flush must be described as such (Clause 2.7).

Summary Table Extract (Example)

flowchart TD
    A[Measure Hardware] --> B{Type of Hardware}
    B -->|Bolt| C[Measure length of face plate or shoots]
    B -->|Hinge| D[Measure length of knuckle, width, leaf]
    B -->|Lock| E[Measure horizontal length excluding box staple]
    B -->|Knob| F[Measure max 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-

IS 1200 Part 7: Bills of Quantities & Measurement of Hardware

Key points from the code:

• Clause 2.3: Bills of Quantities (BoQ) must fully describe materials, workmanship, and accurately represent the work to be executed.
• Clause 2.4.1: Specific hardware items measured in running meters with detailed description:
  • Curtain rods/poles (outer diameter stated)
  • Curtain rails (include runners, brackets, stops with quantity per meter)
  • Rails for sliding sashes (size stated)
  • Sash lines (girth/diameter stated)

Specifications for Bills of Quantities (BoQ)

General Guidelines for BoQ Preparation

• Use IS 2-1960 for rounding off numerical values.
• Quantities should be clear, unambiguous, and comprehensive.
• Include workmanship quality and material specifications in descriptions.
• Separate items that require linear measurement from those measured by count or area.

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

This ensures standardized, clear, and uniform measurement for hardware in civil engineering works per IS 1200 Part 7.

IS 1200 Part 7 (1972) — Mode of Measurement for Hardware

Key Specifications:

• Clause 2.4 (Mode of Measurement):
  Measure builders' hardware separately by:

  • Material
  • Finish
  • Size
  • Pattern
  • Method of fixing

• Clause 2.2 (Limits of Measurement):
  Dimensions must be measured net and recorded in the decimal system, rounded to the nearest 0.01 m.

• Rounding Off:
  Follow IS 2-1960 for rounding numerical values, maintaining the same number of significant digits as specified.

Practical Measurement Guidelines:

• Separate measurement avoids ambiguity in costing and specification.
• Use net dimensions (actual size excluding overlaps).
• Measurements should be accurate to 1 cm (0.01 m) for consistency.

Summary Table Example for Hardware Measurement:

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

This approach ensures clarity, uniformity, and compliance with IS 1200 Part 7 for hardware measurement.

IS 1200 Part 7 — Fixing of Hardware Items: Key Points

1. Scope of Fixing (Clause 2.5)

• Includes fittings, cutting, sinking, boring, morticing.
• Supply of screws or bolts, nuts, washers as required.
• Fasteners must match the hardware type.

2. Flush Fixing (Clause 2.7)

• Hardware fixed flush to surfaces must be clearly described in specifications.

3. Measurement (Clause 2.6)

• Hardware fixed to wood and metal are measured separately.
• Measurement includes all fixing accessories (screws, bolts, washers).

Typical Fixing Specifications (General Engineering Practice)

Example: Screw Fixing Dimensions (General)

• Screw length = Thickness of hardware + thickness of base material + 5 mm embedment.
• Bolt size depends on hardware hole diameter, typically 1.5 times hole diameter.

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

Summary: IS 1200 Part 7 emphasizes comprehensive fixing including preparation and matching fasteners, with clear measurement rules separating wood and metal fixings.

IS 1200 Part 7: Measurement of Hardware Fixed to Wood and Metal

Key Points from Clauses:

• Clause 2.6: Measure hardware fixed to wood and metal separately.
• Clause 2.7: If hardware is fixed flush, it must be explicitly described.
• Clause 2.4: Hardware must be measured by material, finish, size, pattern, and fixing method.

Measurement Guidelines:

Typical Measurement Formula:

For hardware fixed flush or surface-mounted, measure:

• Length × Width (for plates, hinges)
• Diameter × Length (for bolts, screws)
• Count for items like handles, locks.

Example Table for Measurement Units:

flowchart LR
    A[Hardware] --> B{Material}
    B --> C[Wood]
    B --> D[Metal]
    C --> E[Measure separately]
    D --> E
    E --> F{Fixing Type}
    F --> G[Flush fixed]
    F --> H[Surface fixed]
    G --> I[Describe as flush]
    H --> J[Describe as surface]

Summary: Measure hardware fixed to wood and metal separately, describe flush fixing explicitly, and record size, finish, and fixing method for accurate quantification as per IS 1200 Part 7.

IS 1200 Part 7: Flush Fixed Hardware – Key Points

Description (Clause 2.7)

• Flush fixed hardware refers to hardware items fixed so that their surfaces are level with the adjoining surface (e.g., door hinges, flush bolts).
• Must be clearly described by type, size, material, finish, and fixing method.

Measurement Specifications (Clauses 2.4 to 2.6)

• Measurement includes:

  • Material type (steel, brass, etc.)
  • Finish (polished, painted, etc.)
  • Size (length, width, thickness)
  • Pattern or design
  • Method of fixing (screws, bolts, welding)

• Fixing includes:

  • Fittings
  • Cutting, sinking, boring, morticing
  • Supply of screws, bolts, nuts, washers as required

• Hardware fixed to wood and metal are measured separately.

Typical Measurement Table Format (Example)

Diagram: Flush Fixed Hardware Concept

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

Summary: Always describe flush fixed hardware fully, measure by material, size, finish, and fixing, including all associated fixing work and hardware for wood and metal separately.

IS 1200 Part 7: Measurement of Sizes of Hardware

Key Points from IS 1200-7 (1972)

• Clause 2.4: Hardware must be described and measured separately by:

  • Material
  • Finish
  • Size
  • Pattern
  • Method of fixing

• Clause 2.7: Hardware fixed flush shall be specifically described.

Measurement Guidelines

General Formula for Size Measurement

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

Notes:

• Always record material and finish (e.g., brass, stainless steel, painted).
• Specify pattern or design if relevant.
• Measurement is typically in millimeters (mm).
• For hardware fixed flush, mention the fixing detail explicitly.

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

This ensures accurate and standardized measurement for billing and specification compliance.

IS 1200 Part 7: Measurement of Hardware Articles

Key Points from IS 1200 Part 7:

• Clause 2.4 (Mode of Measurement):
  Hardware is measured based on:

  • Material (e.g., brass, steel)
  • Finish (polished, painted)
  • Size (dimensions as per manufacturer or IS specifications)
  • Pattern (design/type)
  • Method of fixing (flush, surface fixed)

• Clause 2.6:
  Measure hardware fixed to wood and metal separately.

• Clause 2.7:
  Hardware fixed flush shall be distinctly described.

Typical Measurement Specifications:

Practical Tips:

• Always specify material and finish in the description.
• For flush hardware, measure the actual area or count pieces fixed flush.
• Separate quantities for wood-fixed and metal-fixed hardware.

flowchart LR
    A[Hardware Articles] --> B{Material}
    A --> C{Finish}
    A --> D{Size}
    A --> E{Pattern}
    A --> F{Fixing Method}
    F --> G[Flush]
    F --> H[Surface Fixed]
    G --> I[Measure area or count]
    H --> J[Measure per piece]

This ensures clarity and uniformity in billing and specification.