IS 14315 : 1995Commercial veneers -Specification

Q: What is the acceptable moisture content for commercial veneers?

The moisture content must be between 5% and 15% when tested according to IS 1734 (Part 1) (Clause 8.1).

Q: What are the standard thicknesses available under this IS code?

The code specifies nominal thicknesses from 0.5 mm to 3.0 mm (Clause 6.1).

Q: What is the tolerance allowed on the thickness of a veneer sheet?

A tolerance of ± 5% is permitted on the specified nominal thickness (Clause 6.1.1).

Q: Does this standard cover decorative veneers used for high-end furniture?

No, this standard is for Type II (Commercial) veneers. Decorative veneers (Type I) are covered by IS 1328.

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ISO 18775 · EN 635-2 · ANSI/HPVA HP-1

CurrentFrequently UsedSpecificationMaterials Science · Wood and Other Lignocellulosic Products

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IS 14315:1995 is the Indian Standard (BIS) for commercial veneers -specification. This standard specifies the requirements for commercial veneers (Type II) sliced or rotary-cut from various timber species. It covers classification, materials, dimensions, tolerances, permissible defects, and moisture content to ensure quality for general purpose applications like manufacturing plywood, blockboards, and furniture.

Commercial veneers -Specification

Overview

Status: Current
Usage level: Frequently Used
Domain: Materials Science — Wood and Other Lignocellulosic Products
Type: Specification

International equivalents

ISO 18775:2006 · ISO (International Organization for Standardization)EN 635-2:1995 · CEN (European Committee for Standardization), Europe ANSI/HPVA HP-1-2020 · American National Standards Institute / Hardwood Plywood & Veneer Association, USA

Typically used with

IS 707 IS 1708 IS 2380

Also on InfraLens for IS 14315

5Key values 1Tables 4FAQs

Practical Notes

! This standard specifically covers Type II (Commercial) veneers, not Type I (Decorative) veneers which are judged primarily on aesthetic appearance.

! Moisture content is a critical parameter affecting dimensional stability. Veneers should be tested upon receipt and stored in a controlled environment to prevent warping or splitting.

! Always visually inspect veneers for permissible defects as listed in Table 1, such as knots, splits, and stains, as these can affect the final product's strength and appearance.

Frequently referenced clauses

Cl. 4Classification Cl. 6Dimensions and Tolerances Cl. 7Workmanship and Finish (Defects)Cl. 8Moisture Content

veneerwoodtimberplywood

International Equivalents

Similar International Standards

ISO 18775:2006ISO (International Organization for Standardization)

HighCurrent

Veneers — Terms and definitions, measurement of physical characteristics and tolerances

Overlaps significantly on definitions, dimensional measurements, and tolerances for veneers.

EN 635-2:1995CEN (European Committee for Standardization), Europe

HighCurrent

Plywood - Classification by surface appearance - Part 2: Hardwood

Provides a detailed surface quality classification system for hardwood veneers used in plywood, analogous to the IS code's defect limits.

ANSI/HPVA HP-1-2020American National Standards Institute / Hardwood Plywood & Veneer Association, USA

HighCurrent

American National Standard for Hardwood and Decorative Plywood

Includes comprehensive veneer grading rules (e.g., A, B, C, D) based on allowable defects, which is a core component of the IS standard.

BS 4046-1:2001BSI (British Standards Institution), UK

MediumWithdrawn

Plywood. Classification by surface appearance. General

Provided a classification system based on veneer appearance before the adoption of the EN standard.

Key Differences

≠IS 14315 uses a two-tier classification (Type 1 Decorative, Type 2 General). In contrast, EN 635-2 and ANSI/HPVA HP-1 use more granular multi-grade systems (e.g., Classes E, I, II, III, IV or Grades A, B, C, D), allowing for finer quality distinctions.

≠The Indian Standard specifies a fixed maximum moisture content of 12%. International practices, as reflected in standards like ANSI/HPVA HP-1, often relate moisture content to the intended manufacturing process or service environment, typically targeting a range like 6-12%.

≠IS 14315 is a standalone standard for commercial veneers. Major international standards like EN 635 and ANSI/HPVA HP-1 define veneer quality primarily within the context of their application in plywood, making them component specifications within a larger product standard.

≠The list of approved timber species in IS 14315 is specific to those available and used in the Indian subcontinent (e.g., Teak, Hollock, Mango). International standards are generally species-agnostic or reference species common in their respective regions (e.g., Oak, Birch, Maple).

Key Similarities

≈All standards share the fundamental purpose of classifying veneers based on visual and natural characteristics to determine their suitability for decorative or general purpose applications.

≈The types of characteristics controlled are highly similar across all standards, including knots (sound, unsound), splits, discoloration, mineral streaks, insect damage, and grain irregularities.

≈Emphasis on defining and controlling dimensional tolerances for thickness, length, and width is a common and critical element in both the IS code and its international counterparts like ISO 18775.

≈The primary basis for classification in all standards is the aesthetic quality and visual appearance of the veneer face, even if the grading terminology and limits differ.

Parameter Comparison

Parameter	IS Value	International	Source
Thickness Tolerance (Average)	±5% of nominal thickness	±5% of nominal thickness (for thicknesses < 1.5 mm)	ISO 18775:2006
Moisture Content	Shall not exceed 12%	No single value specified; typically determined by manufacturer/agreement, often within a 6-12% range for processing.	ANSI/HPVA HP-1-2020 (Industry Practice)
Grading System	Two types: Type 1 (Decorative) and Type 2 (General Purpose)	Multi-grade system: e.g., Grade A, B, C, D	ANSI/HPVA HP-1-2020
Open Splits (Highest Grade)	Type 1: Not permitted	Grade A: Not permitted	ANSI/HPVA HP-1-2020
Knots (Highest Grade)	Type 1: Sound knots up to 15 mm diameter, limited in number.	Class I: Sound knots up to 10 mm diameter, limited number.	EN 635-2:1995
Worm/Insect Holes (Highest Grade)	Type 1: Not permitted.	Class E (highest): Not permitted.	EN 635-2:1995
Measurement of Squareness	The difference between diagonals shall not exceed 1.0% of the length of the diagonal.	The difference between diagonals shall not exceed 10 mm/m of width.	ISO 18775:2006

⚠ Verify details from original standards before use

Key Values5

Quick Reference Values

Moisture content range5% to 15%

Nominal thickness range0.5 mm to 3.0 mm

Tolerance on nominal thickness± 5 percent

Squareness tolerance1.0 mm per metre of diagonal length

Edge straightness tolerance1.0 mm per metre length

Tables & Referenced Sections

Key Tables

Table 1 - Permissible Defects in Commercial Veneers

Key Clauses

Clause 4 - Classification

Clause 6 - Dimensions and Tolerances

Clause 7 - Workmanship and Finish (Defects)

Clause 8 - Moisture Content

Frequently Asked Questions4

What is the acceptable moisture content for commercial veneers?+

The moisture content must be between 5% and 15% when tested according to IS 1734 (Part 1) (Clause 8.1).

What are the standard thicknesses available under this IS code?+

The code specifies nominal thicknesses from 0.5 mm to 3.0 mm (Clause 6.1).

What is the tolerance allowed on the thickness of a veneer sheet?+

A tolerance of ± 5% is permitted on the specified nominal thickness (Clause 6.1.1).

Does this standard cover decorative veneers used for high-end furniture?+

No, this standard is for Type II (Commercial) veneers. Decorative veneers (Type I) are covered by IS 1328.

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IS 14315 : 1995Commercial veneers -Specification

PDF Google Compare BIS Portal

Link points to Internet Archive / others. Not hosted by InfraLens. Details

ISO 18775 · EN 635-2 · ANSI/HPVA HP-1

CurrentFrequently UsedSpecificationMaterials Science · Wood and Other Lignocellulosic Products

PDF Google Compare BIS Portal

Link points to Internet Archive / others. Not hosted by InfraLens. Details

Commercial veneers -Specification

Overview

Status: Current
Usage level: Frequently Used
Domain: Materials Science — Wood and Other Lignocellulosic Products
Type: Specification

International equivalents

Typically used with

IS 707 IS 1708 IS 2380

Also on InfraLens for IS 14315

5Key values 1Tables 4FAQs

Practical Notes

! This standard specifically covers Type II (Commercial) veneers, not Type I (Decorative) veneers which are judged primarily on aesthetic appearance.

! Moisture content is a critical parameter affecting dimensional stability. Veneers should be tested upon receipt and stored in a controlled environment to prevent warping or splitting.

! Always visually inspect veneers for permissible defects as listed in Table 1, such as knots, splits, and stains, as these can affect the final product's strength and appearance.

Frequently referenced clauses

Cl. 4Classification Cl. 6Dimensions and Tolerances Cl. 7Workmanship and Finish (Defects)Cl. 8Moisture Content

veneerwoodtimberplywood

International Equivalents

Similar International Standards

ISO 18775:2006ISO (International Organization for Standardization)

HighCurrent

Veneers — Terms and definitions, measurement of physical characteristics and tolerances

Overlaps significantly on definitions, dimensional measurements, and tolerances for veneers.

EN 635-2:1995CEN (European Committee for Standardization), Europe

HighCurrent

Plywood - Classification by surface appearance - Part 2: Hardwood

Provides a detailed surface quality classification system for hardwood veneers used in plywood, analogous to the IS code's defect limits.

ANSI/HPVA HP-1-2020American National Standards Institute / Hardwood Plywood & Veneer Association, USA

HighCurrent

American National Standard for Hardwood and Decorative Plywood

Includes comprehensive veneer grading rules (e.g., A, B, C, D) based on allowable defects, which is a core component of the IS standard.

BS 4046-1:2001BSI (British Standards Institution), UK

MediumWithdrawn

Plywood. Classification by surface appearance. General

Provided a classification system based on veneer appearance before the adoption of the EN standard.

Key Differences

Key Similarities

≈All standards share the fundamental purpose of classifying veneers based on visual and natural characteristics to determine their suitability for decorative or general purpose applications.

≈The types of characteristics controlled are highly similar across all standards, including knots (sound, unsound), splits, discoloration, mineral streaks, insect damage, and grain irregularities.

≈Emphasis on defining and controlling dimensional tolerances for thickness, length, and width is a common and critical element in both the IS code and its international counterparts like ISO 18775.

≈The primary basis for classification in all standards is the aesthetic quality and visual appearance of the veneer face, even if the grading terminology and limits differ.

Parameter Comparison

Parameter	IS Value	International	Source
Thickness Tolerance (Average)	±5% of nominal thickness	±5% of nominal thickness (for thicknesses < 1.5 mm)	ISO 18775:2006
Moisture Content	Shall not exceed 12%	No single value specified; typically determined by manufacturer/agreement, often within a 6-12% range for processing.	ANSI/HPVA HP-1-2020 (Industry Practice)
Grading System	Two types: Type 1 (Decorative) and Type 2 (General Purpose)	Multi-grade system: e.g., Grade A, B, C, D	ANSI/HPVA HP-1-2020
Open Splits (Highest Grade)	Type 1: Not permitted	Grade A: Not permitted	ANSI/HPVA HP-1-2020
Knots (Highest Grade)	Type 1: Sound knots up to 15 mm diameter, limited in number.	Class I: Sound knots up to 10 mm diameter, limited number.	EN 635-2:1995
Worm/Insect Holes (Highest Grade)	Type 1: Not permitted.	Class E (highest): Not permitted.	EN 635-2:1995
Measurement of Squareness	The difference between diagonals shall not exceed 1.0% of the length of the diagonal.	The difference between diagonals shall not exceed 10 mm/m of width.	ISO 18775:2006