Tables for volumes of cut sizes of timber

IS 2377: Scope & Key Specifications

• Scope:
  Covers specification and volume tables for cut sizes of timber with thickness fixed at 10 mm and widths ranging from 40 mm to 120 mm. It standardizes timber cut sizes and provides volume data for accurate measurement.

• Volume Calculation:
  Volume (m³) = Thickness (m) × Width (m) × Length (m)
  Given thickness = 10 mm = 0.01 m
  Width varies: 40 mm to 120 mm (0.04 m to 0.12 m)
  Length varies from 30 cm to 450 cm (0.3 m to 4.5 m)

• TABLE 1: Volume in cubic meters for timber cut sizes (excerpt):

• Rounding Rule:
  All volume values are rounded per IS 2-1960 for numerical consistency.

Summary Diagram: Volume Calculation

flowchart LR
    A[Thickness = 10 mm (0.01 m)]
    B[Width = 40 to 120 mm (0.04 to 0.12 m)]
    C[Length = 30 to 450 cm (0.3 to 4.5 m)]
    D[Volume = Thickness × Width × Length (m³)]
    A --> D
    B --> D
    C --> D

IS 2377 (1967) — Tables for Volumes of Cut Sizes of Timber

This standard provides volume tables for timber cut sizes with thickness 10 mm and widths ranging from 40 mm to 120 mm, for lengths from 30 cm up to 450 cm and beyond.

Key Formula for Volume Calculation:

[ \text{Volume} = \text{Thickness} \times \text{Width} \times \text{Length} ]

• Thickness, Width, Length in meters (m)
• Volume in cubic meters (m³)

Sample Extract from Volume Table (Thickness = 10 mm = 0.01 m):

Specifications & Notes:

• All volumes are rounded off as per IS 2-1960.
• Dimensions are in metric units.
• Volumes correspond to converted timber sizes per IS 1331-1966.
• Useful for estimating timber quantities in procurement and construction.

Summary Diagram of Volume Calculation:

flowchart TD
    A[Thickness (t)] --> C[Calculate Volume]
    B[Width (w)] --> C
    D[Length (l)] --> C
    C --> E[Volume = t × w × l]

Use IS 2377 volume tables for quick reference to timber volumes based on standard cut sizes, ensuring accurate material estimation and compliance with Indian Standards.

IS 2377 (1967) - Terminology & Key Specifications for Timber Sizes

This standard provides volume tables for cut sizes of timber with thickness fixed at 10 mm and widths ranging from 40 mm to 120 mm, for lengths from 30 cm up to 450 cm and beyond.

Key Formula for Volume Calculation

Volume (m³) = Thickness (m) × Width (m) × Length (m)

Given thickness = 10 mm = 0.01 m

Example Calculation:

For a timber piece 10×50 mm cross-section and 100 cm length:

Volume = 0.01 × 0.05 × 1.0 = 0.0005 m³

Volume Table Snapshot (Volume in m³)

Additional Notes:

• All volumes are rounded as per IS:2-1960.
• The

IS 2377 (1967) — General Requirements & Volume Tables for Cut Sizes of Timber

Key Points:

• Covers volume tables for cut sizes of timber as per IS:1331-1966 (metric system).
• Thickness fixed at 10 mm, widths range from 40 mm to 120 mm.
• Lengths vary from 30 cm to 450 cm (and beyond).
• Volume values are in cubic meters (m³) for given cross-sectional dimensions and lengths.
• Values are rounded as per IS 2-1960 rules.

Volume Calculation Formula:

[ \text{Volume (m}^3) = \frac{\text{Thickness (mm)} \times \text{Width (mm)} \times \text{Length (cm)}}{1,000,000} ]

• Thickness is constant at 10 mm.
• Width and length vary per table.
• Conversion: (1 \text{ cm} = 10 \text{ mm}), so dimensions converted to meters for volume.

Sample Table Extract (Volume in m³ for Thickness 10 mm):

Usage:

• Use these tables for quick volume estimation of standard cut timber sizes.
• Essential for procurement, inventory, and structural calculations involving timber.

flowchart LR
    A[Cut Timber Size] --> B{Dimensions}
    B --> C[Thickness = 10 mm]
    B --> D[Width = 40-120 mm]
    B --> E[Length = 30-450+ cm]
    C & D & E --> F[

IS 2377 (1967) — Volume Tables for Cut Sizes of Timber

This standard provides volume tables for timber cut sizes with thickness fixed at 10 mm and widths ranging from 40 mm to 120 mm, with lengths from 30 cm to 450 cm.

Key Formula for Volume Calculation

Volume (m³) = Thickness (m) × Width (m) × Length (m)

Given thickness = 10 mm = 0.01 m

Sample Volume Table Extract (Thickness 10 mm)

Notes:

• All volumes are in cubic meters (m³).
• Values are rounded as per IS 2-1960.
• Use the formula for other sizes or interpolate from tables.

flowchart TD
    A[Thickness = 10 mm (0.01 m)] --> B[Width (m)]
    B --> C[Length (m)]
    C --> D[Calculate Volume = 0.01 × Width × Length]
    D --> E[Refer IS 2377 Volume Tables for standard sizes]

Summary: IS 2377 provides ready volume tables for timber cut sizes (10 mm thick) to facilitate quick volume estimation without manual calculation. Use

IS 2377 Rounding Off Rules (per IS:2-1960 referenced)

• All numerical values in timber volume tables are rounded off following IS:2-1960 rules.
• Rounding off is essential for standardizing timber volume calculations and specifications.
• Typical rounding rule:
  • If the digit after the last significant figure is 5 or more, round up.
  • If less than 5, round down.
• Values are presented with precision up to 5 decimal places in cubic meters for timber volumes.

Key Formula for Volume of Timber (General)

[ \text{Volume (m}^3) = \frac{\text{Thickness (mm)} \times \text{Width (mm)} \times \text{Length (cm)}}{10^7} ]

• Thickness and Width in mm, Length in cm.
• This formula underpins the tabulated values.

Sample from TABLE 1: Volume of Timber (Thickness 10 mm)

Note: Volumes are rounded as per IS:2-1960 to maintain consistency in timber measurement and specification.

flowchart LR
    A[Measure Timber Dimensions] --> B[Calculate Volume using formula]
    B --> C[Apply Rounding off Rules (IS:2-1960)]
    C --> D[Refer to IS 2377 Volume Tables]
    D --> E[Standardized Volume for Timber Cut Sizes]

This ensures uniformity and accuracy in timber volume specifications as per IS 2377.

IS 2377: Application and Use of Tables for Volumes of Cut Sizes of Timber

Key Points:

• IS 2377 provides volume tables for standard cut sizes of timber, aligned with IS 1331-1966 metric sizes.
• Volumes are given in cubic meters (m³) for timber thickness 10 mm and widths ranging from 40 mm to 120 mm.
• Lengths are tabulated from 30 cm to 450 cm (and beyond) with corresponding volumes for each cross-sectional dimension.
• Values are rounded as per IS 2-1960 rules.

Volume Calculation Formula (for reference):

[ \text{Volume} = \frac{\text{Thickness (mm)} \times \text{Width (mm)} \times \text{Length (cm)}}{10^6} \quad \text{m}^3 ]

• Thickness and width in mm, length in cm.
• Example: For 10×50 mm, length 100 cm: [ V = \frac{10 \times 50 \times 100}{10^6} = 0.0005 \text{ m}^3 ]

Usage:

• Use tables for quick volume estimation of timber pieces without manual calculation.
• Tables cover common sizes, ensuring standardization in timber trade and construction.

Sample Table Extract (Volume in m³ for thickness 10 mm):

IS 2377: Cross-Sectional Dimensions & Lengths of Timber

Key Specifications:

• Thicknesses: 10 mm, 140 mm, 160 mm (varies by table)
• Widths:
  • For 10 mm thickness: 40 mm to 120 mm
  • For 140 mm thickness: 240 mm to 300 mm
  • For 160 mm thickness: 160 mm to 220 mm
• Lengths: From 30 cm up to 500 cm (varies by table)

Volume Calculation:

Volume (m³) = Thickness (m) × Width (m) × Length (m)

Sample Table Extract (Thickness 10 mm, Width 40-120 mm):

Larger Sizes (Thickness 140 mm, Width 240-300 mm):

Notes:

• Volumes are tabulated for easy reference, avoiding manual calculation.
• Lengths are in cm; convert to meters for formula use.
• Thickness and width are fixed per table; volume changes with length.

Formula Summary:

[ \text{Volume (m}^3) = \frac{\text{Thickness (mm)}}{1000} \

IS 2377: Notes on Volume Calculation for Cut Sizes of Timber

Key Points:

• The standard provides volume tables for cut sizes of timber with thickness fixed at 10 mm and widths ranging from 40 mm to 120 mm.
• Volumes are given in cubic meters (m³) for lengths from 30 cm to 450 cm (and beyond).
• Values are rounded as per IS 2-1960 rules.

Volume Calculation Formula:

For any timber piece, [ \text{Volume} = \frac{\text{Thickness (mm)} \times \text{Width (mm)} \times \text{Length (cm)}}{10^7} \quad \text{in } m^3 ]

• Thickness and width in mm, length in cm.
• This formula matches the tabulated values for 10 mm thickness.

Example Table Extract (Volume in m³ for 10 mm thickness):

Important Notes:

• Use the table for quick volume reference instead of manual calculation.
• The standard covers metric sizes and rounding for practical use.
• Thickness is standardized at 10 mm; for other thicknesses, scale accordingly.

flowchart LR
    A[Input Dimensions] --> B[Thickness (mm)]
    A --> C[Width (mm)]
    A --> D[Length (cm)]
    B & C & D --> E[Calculate Volume]
    E --> F[Volume (m³) = (T × W × L) / 10^7]
    F --> G[Refer IS 2377 Tables for verification]

Summary: IS 2377 provides tabulated volumes for standard timber cut sizes (10 mm thick

IS 2377 (1967) Annexures: Key Formulas, Tables & Specifications

IS 2377 provides volume tables for cut sizes of timber based on metric dimensions, aligned with IS 1331-1966 specifications.

1. Volume Calculation Formula

For timber of rectangular cross-section:

[ \text{Volume} (m^3) = \frac{\text{Thickness (mm)} \times \text{Width (mm)} \times \text{Length (cm)}}{1,000,000} ]

• Thickness and Width in mm
• Length in cm
• Divide by 1,000,000 to convert mm²·cm to m³

2. Sample Volume Table Extract (Thickness = 10 mm)

3. Specifications & Notes

• All volumes rounded per IS 2-1960 rules.
• Covers timber thickness 10 mm and widths from 40 mm to 120 mm.
• Lengths tabulated from 30 cm up to 450 cm and beyond.
• Useful for estimating timber volume for procurement, costing, and inventory.

flowchart TD
    A[Timber Dimensions] --> B[Thickness (mm)]
    A --> C[Width (mm)]
    A --> D[Length (cm)]
    B & C & D --> E[Calculate Volume]
    E --> F[Volume (m³) = (T × W × L)/1,000,000]
    F --> G[Use IS 2377 Tables for verification