wooden shelving cabinets (adjustable type) -Specification

IS 4116: Scope & Key Specifications for Shelving Cabinets

Scope (Clause 3.1 & Table 1)

• Overall Dimensions (in mm):

• Minimum Clearances for Recess Installation:
  • Top clearance: 20 mm
  • Side clearance: 10 mm each side
  • Depth clearance: Thickness of doors (if doors cover full width)

General Requirements (Clause 10.1)

• Purchaser must provide technical details when ordering.
• Test results must be rounded as per IS 2:1960 rules.

Finishes (Clause 2.9)

• Paints, enamels, polish, and varnish must conform to relevant IS standards for air-drying or stoving finishes.

Summary Diagram:

flowchart TD
    A[Shelving Cabinet] --> B[Dimensions]
    B --> B1[Height: 1280/1980 mm]
    B --> B2[Width: 760/910 mm]
    B --> B3[Depth: 430/480 mm]
    A --> C[Clearances]
    C --> C1[Top: 20 mm]
    C --> C2[Sides: 10 mm each]
    C --> C3[Depth: Door thickness]
    A --> D[Finishes]
    D --> D1[Paints/Enamels per IS standards]

This concise scope covers dimensional limits, installation clearances, and finishing requirements per IS 4116.

IS 4116: Key Specifications for Materials

• Paints, Enamels, Polish, Varnish (Clause 2.9):
  Must conform to relevant Indian Standards (e.g., IS 5807 Part 6-1978 for finishes). Both air-drying and stoving finishes are covered.

• Plywood (Clause 2.3):
  Shall conform to IS 303:1989 – Specification for plywood for general purposes.

Dimensions for Shelving Cabinets (Clause 3.1, Table 1)

Minimum clearances for recesses/openings:

• Top: 20 mm
• Each side: 10 mm
• Depth: Thickness of doors (if doors extend full width)

Surface Resistance to Mechanical Damage (Clause 9.6)

• Tests per IS 5807 (Part 6)-1978: impact, cross-cut, scrape
• Ratings must conform to section 5.3 of IS 5807 (Part 6)-1978

Summary Table for Material Standards

flowchart TD
    A[Materials] --> B[Paints & Finishes]
    B --> C{Conform to IS 5807 Part 6-1978}
    A --> D[Plywood]
    D --> E[Conform to IS 303:1989]
    A --> F[Shelving Dimensions]
    F --> G[Small Size: 1280x760x430 mm]
    F --> H[Large Size: 1980x910x480 mm]
    F --> I[Clearances: Top 20mm, Sides 10mm, Depth = door thickness]

This concise summary covers the key material specifications, dimensions, and test requirements per IS 4116.

IS 4116: Dimensions and Tolerances for Shelving Cabinets

Key Specifications

Tolerances

• Overall dimensions shall not vary by more than ±5 mm (Clause 3.2).

Minimum Clearances for Recess Installation

• Top clearance: 20 mm
• Side clearance: 10 mm each side
• Depth clearance: Thickness of doors (if doors extend full width)

Summary Table

This ensures proper fit and finish per IS 4116 standards.

IS 4116: Construction and Components Key Specifications

1. Overall Dimensions of Shelving Cabinet (Clause 3.1, Table 1)

Minimum Clearance for Recess Installation:

• Top: 20 mm
• Each Side: 10 mm
• Depth: Thickness of doors (if doors extend full width)

2. Material Specifications

• Plywood must conform to IS 303:1989 (Specification for plywood for general purposes).

3. Fabrication and Assembly (Clause 11.2)

• Cabinets may be supplied in knocked down condition.
• Manufacturer to provide fully prepared components for quick joining.
• Complete fixing instructions must be supplied.

4. Additional Notes on Finishes

• Resistance to dry heat, wet heat, oils, fats, liquids, and mechanical damage are tested as per relevant parts of the standard (noted but not detailed here).

flowchart LR
    A[Material: Plywood IS 303:1989] --> B[Fabrication]
    B --> C[Dimensions: Small & Large]
    C --> D[Clearance for Installation]
    D --> E[Assembly: Knocked down or pre-assembled]
    E --> F[Fixing Instructions]

This summary ensures compliance with IS 4116 for shelving cabinet construction.

IS 4116 Joinery Details Summary

Key Joinery Types (Clause 4.2)

• Spline-miter joint
• Inter-locked miter joint
• Straight miter joint (fixed by angular screws or wood strips)
• Butt joint (with/without dowels or half-lapped joining)

All joints must be:

• Secured by glue (adhesives per IS 849, 851, 852, 4835)
• Reinforced with wood screws for a tight, strong fit

Door Specifications (Clause 4.1.5)

• Thickness: 20 mm ± 1 mm
• Materials: wood particle board, veneered particle boards, plywood, blockboards
• Fixing methods:
  • (a) Door recessed with side/top/bottom forming border; hinges on inside surface
  • (b) Door full front; hinges on front edge of sides

Back Panel Fixing (Clause 4.2.1)

• Fixed by straight butt joint recessed by half-lap cut, glued and screwed
• Alternatively, double half-lapped joint or straight butt joint with glue and screws
• Width adjustments needed for latter method

Adhesives (Clause 2.6)

• Must conform to IS 849, IS 851, IS 852, or IS 4835 standards

Typical Joinery Joint Diagram (Fig. 2 Summary)

graph LR
A[Side] -- Spline-miter joint --> B[Top/Bottom]
A -- Inter-locked miter joint --> B
A -- Straight miter joint + screws --> B
A -- Butt joint + dowels/half-lap --> B
B -- Back fixed by half-lap butt joint --> C[Back Panel]

For detailed dimensions and joint shapes, refer to Appendix A of IS 3087-1985 and Fig. 2 of IS 4116.

IS 4116: Accessories - Key Specifications & Tables

1. Assembly (Clause 5.1)

• Components joined using glue + screws.
• Pilot hole must be pre-drilled.
• Screws dipped in glue before insertion for secure fixing.

2. Additional Accessories (Clause 6.1)

3. Dimensions of Shelving Cabinet (Clause 3.1)

Minimum clearance for recesses:

• Top: 20 mm
• Each side: 10 mm
• Depth: Thickness of doors (if full width)

4. Safe Distributed Loads on Shelves (Clause 4.1.3)

flowchart TD
    A[Wood Panel] --> B[Pre-drill Pilot Hole]
    B --> C[Screw dipped in Glue]
    C --> D[Drive Screw under Pressure]
    D --> E[Secure Assembly]

Summary: Accessories must meet material & dimensional specs, assembled with glue & screws after pilot holes, and shelves designed for specified safe loads.

IS 4116: Load Capacity and Performance for Shelving Cabinets

Key Specifications:

• Shelf Dimensions & Load Capacity (Table 2, Clause 4.1.3 & 7.1):

• Overall Cabinet Dimensions (Table 1, Clause 3.1):

Notes on Installation Clearances:

• Top clearance: 20 mm
• Side clearance: 10 mm each side
• Depth clearance: Thickness of doors (if full width)

Load Guidelines:

• Loads are uniformly distributed static loads.
• Do not exceed values in Table 2.
• Use as ordering guide for shelves.

Rounding Off:

• Follow IS 2-1960 for rounding test or calculated results.

flowchart TD
    A[Order Shelving Cabinet] --> B{Select Size}
    B -->|Small| C[Height: 1280 mm]
    B -->|Large| D[Height: 1980 mm]
    C --> E[Width: 760 mm, Depth: 430 mm]
    D --> F[Width: 910 mm, Depth: 480 mm]
    E --> G[Max Load: 1850 N]
    F --> H[Max Load: 1500 N]

This ensures safe use within IS 4116 limits for load and dimension compliance.

IS 4116: Finishing Requirements Summary

1. Finishing Specifications (Clause 8.3)

• All components must be finished in an agreed colour between purchaser and manufacturer.
• Finish must be smooth, uniform, free from defects, well-based, and resistant to chipping or flaking (Clause 8.2).
• Minimum dry film thickness: 0.10 mm.

2. Performance Requirements (Clause 2.9 & 9.5)

• Paints, enamels, polish, varnish must conform to relevant IS standards for air-drying and stoving finishes.
• Surface resistance to marking by liquids tested as per IS 5807 (Part 4) - 1975.
• Minimum qualifying average rating as per IS 5807 (Part 4) - 1975, Clause 8.

3. Key Standards Referenced

flowchart LR
    A[Component] --> B[Surface Preparation]
    B --> C[Application of Paint/Finish]
    C --> D{Finish Properties}
    D -->|Smooth & Uniform| E[Dry Film Thickness ≥ 0.10 mm]
    D -->|No Chipping/Flaking| F[Resistance to Liquids (IS 5807)]
    D -->|Colour as per agreement| G[Final Inspection]

Summary: Ensure finish meets minimum 0.10 mm dry film thickness, conforms to IS 5807 for liquid resistance, and is smooth and defect-free as per purchaser agreement.

IS 4116: Performance Requirements of Finish

Key Specifications

• Finish Colour: As agreed between purchaser and manufacturer (Clause 8.3).
• Surface Quality: Smooth, uniform, free from visible defects, well adhered without chipping or flaking (Clause 8.2).
• Dry Film Thickness: Minimum 0.10 mm (Clause 8.2).

Paint & Coating Standards

• Paints, enamels, polish, and varnish must conform to relevant IS standards for air-drying and stoving finishes (Clause 2.9).

Resistance to Marking by Liquids

• Test as per IS 5807 (Part 4) - 1975.
• Minimum qualifying average rating: 8 (on the scale defined in IS 5807 Part 4) (Clause 9.5).

Summary Table

flowchart TD
    A[Start: Surface Preparation] --> B[Apply Paint/Finish]
    B --> C{Finish Quality Check}
    C -- Smooth & Uniform --> D[Measure Dry Film Thickness]
    D -- ≥ 0.10 mm --> E[Test Resistance to Liquids (IS 5807)]
    E -- Rating ≥ 8 --> F[Finish Accepted]
    C -- Defects/Chipping --> G[Rework Finish]
    D -- < 0.10 mm --> G
    E -- Rating < 8 --> G

This ensures durable, aesthetically acceptable finishes per IS 4116.

IS 4116: Additional Requirements for ECO Mark

Key Specifications for ECO Mark Products:

• Timber Species (Clause 2.5.1)
  Use only species specified in IS 13622:1993 from non-natural forest sources like:

  • Industrial/social forestry plantations
  • Shade trees from tea and coffee estates

• Medium Density Fibreboard (MDF) (Clause 2.6)
  MDF must comply with IS 12406:1988 requirements for ECO Mark.

• Particle Board (Clause 2.1)
  Particle boards must meet IS 3087:1985 standards for ECO Mark.

• Veneered Particle Board (Clause 2.2)
  Veneered particle boards must conform to IS 3097:1980 for ECO Mark.

Manufacturer's Responsibility (Clause 10.2)

• Provide documentary evidence (certificate/declaration) to BIS for ECO Mark application.

Summary Table of Relevant Standards for ECO Mark

This ensures sustainable sourcing and conformity to environmental quality standards for ECO Mark certification.

IS 4116 - Packaging: Key Specifications & Tables

1. Overall Dimensions of Shelving Cabinets (Clause 3.1, Table 1)

Minimum clearance for recess/opening:

• Top: 20 mm
• Each side: 10 mm
• Depth: Thickness of door (if doors extend full width)

2. Safe Distributed Loads for Shelves (Clause 4.1.3, Table 2)

3. Packaging & Supply Conditions (Clause 11.2)

• Cupboards may be supplied in knocked down condition.
• Manufacturer must prepare components for quick joining.
• Provide complete fixing instructions.

4. Finishes (Clause 2.9)

• Paints, enamels, polish, and varnish must conform to relevant IS standards for air-drying and stoving finishes.

flowchart TD
    A[Manufacture Components] --> B[Prepare for Quick Joining]
    B --> C[Package Components]
    C --> D[Supply with Fixing Instructions]
    D --> E[Customer Assembly]

This ensures safe transport and easy on-site assembly.

IS 4116: Marking Specifications Summary

Clause 12.1.1 — Marking:

• Wooden shelving cabinets may bear the BIS Standard Mark.
• Use of the Standard Mark is governed by the BIS Act, 1986.
• The Standard Mark assures compliance with IS 4116 under strict inspection, testing, and quality control supervised by BIS.
• Continuous BIS conformity checks apply.
• License details for Standard Mark use are available from BIS.

Related Surface Resistance Tests (for marking durability):

Paints and Finishes (Clause 2.9):

• Paints, enamels, polish, and varnishes must conform to relevant Indian Standards for both air-drying and stoving finishes.

Summary Diagram: Marking Process Flow

flowchart TD
    A[Wooden Shelving Cabinet] --> B[Manufacturing as per IS 4116]
    B --> C[Surface Treatment & Finishes]
    C --> D[Surface Resistance Tests (IS 5807)]
    D --> E{Pass Tests?}
    E -- Yes --> F[Apply BIS Standard Mark]
    E -- No --> G[Rework Surface]
    F --> H[Quality Control & Inspection]
    H --> I[Market Release with Assurance]

For detailed licensing and marking conditions, contact BIS regional offices listed in IS 4116.

IS 4116 - Clause 10.1: Information to be Supplied by the Purchaser

When placing an order, the purchaser must provide the following key information to ensure compliance and proper manufacturing:

• Lock requirement: Specify if a lock is needed.
• Locker requirement: Indicate if a locker is required.
• Number of adjustable shelves: State the exact number.
• Colour of finish: Specify the desired finish color.
• Alternative construction/finish methods: Clearly state if any alternatives are preferred.

Additional Notes:

• If the cupboard is to be supplied in knocked down condition (Clause 11.2), the manufacturer must provide all components ready for quick assembly along with detailed fixing instructions.
• Surface resistance to mechanical damage must comply with IS 5807 (Part 6)-1978, including impact, cross-cut, and scrape tests.

Rounding Off Values (Clause 0.4):

• Test results must be rounded off per IS 2-1960 rules.
• The number of significant figures retained should match the specified value in the standard.

Summary Table of Purchaser's Information

flowchart TD
    A[Purchaser places order] --> B[Provide lock requirement]
    A --> C[Provide locker requirement]
    A --> D[Specify adjustable shelves]
    A --> E[Specify finish colour]
    A --> F[Specify alternative methods if any]
    A --> G[Specify knocked down supply if required]
    G --> H[Manufacturer provides components + instructions]

This ensures clarity and smooth manufacturing aligned with IS 4116 standards.