25117 version 1
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Demonstrate knowledge of timber used in boatbuilding
Level
3
Credits
4
Purpose
People credited with this unit standard are able to identify and specify timbers
suitable for use in boatbuilding; and describe drying options, and storage
requirements and systems for boatbuilding timber.
Subfield
Boating Industries
Domain
Boatbuilding
Status
Registered
Status date
21 November 2008
Date version published
21 November 2008
Planned review date
31 December 2013
Entry information
Open.
Replacement information
This unit standard and unit standard 25118 replaced unit
standard 18168.
Accreditation
Evaluation of documentation and visit by NZQA and
industry.
Standard setting body (SSB)
Boating Industry Training Organisation
Accreditation and Moderation Action Plan (AMAP) reference
0136
This AMAP can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Special notes
1
Definitions
Job requirements, requirements that may or may not be specified but require correct
choices to achieve including: following safety and workplace procedures and meeting
generally accepted trade practice standards.
Conversion, process of milling, cutting and dressing timber. Timber can be
purchased in various forms of conversion ranging from log to dressed and sanded.
Type of conversion is the sawing type, whether quarter or slash sawn.
Fair, smooth continuous curves.
 New Zealand Qualifications Authority 2016
25117 version 1
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2
Boatbuilding context – boatbuilding timber covers a wide variety of timbers that are
selected specifically to suit various component parts location, function and
requirement for durability, compression, weight, abrasion resistance, ability to bond
to other parts, appearance, cost, ability to bend fairly, and workability. Boatbuilding
parts are often required to be custom formed into unique sizes and shapes in a
bespoke manner not used in other trades. Boat specification and use require boat
specific knowledge of suitable timber attributes, conversion methods, selection, and
storage.
3
Elements 2 and 3 of this unit standard apply to non-laminated solid timber.
Elements and performance criteria
Element 1
Identify timbers suitable for use in boatbuilding.
Performance criteria
1.1
Timber used in boatbuilding is identified in terms of components and function.
Range
1.2
use could include but is not limited to – hull structures and
planking, exterior decks, grounding, internal partition structures,
spans, laminated surfaces, finishings.
Timber types used in boatbuilding are identified in terms of their composition
and attributes.
Range
types could include but are not limited to – species, solid timbers,
laminated timbers, plywoods, veneers, manufactured board,
softwoods, hardwoods.
Element 2
Specify timbers suitable for use in boatbuilding.
Performance criteria
2.1
Factors that affect timber selection are identified in terms of timber suitability for
purpose.
Range
2.2
factors include but are not limited to – fitness for purpose, grade,
defects, blemishes, weight, appearance, durability, ability to bend
fairly, ability to bond well to other components, availability,
sustainability/source, cost, workability, moisture content, stage of
conversion, type of conversion.
Suitable timbers are specified to meet job requirements.
 New Zealand Qualifications Authority 2016
25117 version 1
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Element 3
Describe drying options for boatbuilding timber.
Range
time, strength, timber application, availability, moisture content and equilibrium.
Performance criteria
3.1
Kiln drying is described in terms of advantages and disadvantages compared to
air drying.
3.2
Air drying is described in terms of advantages and disadvantages compared to
kiln drying.
Element 4
Describe storage requirements and systems for boatbuilding timber.
Performance criteria
4.1
Requirements for timber storage are described in terms of product protection.
Range
4.2
Fillet storage systems for drying boatbuilding timber are described in
accordance with job requirements.
Range
4.3
protection includes prevention or reduction of – insect attack,
fungal decay, splitting, warping, twisting, cupping.
fillet sizes, positioning, shelter, geographic positioning for
environment, airflow, drying time, moisture content and
equilibrium.
Block stacking storage systems for solid boatbuilding timber are described in
comparison to fillet storage systems.
Please note
Providers must be accredited by NZQA, or an inter-institutional body with delegated
authority for quality assurance, before they can report credits from assessment against
unit standards or deliver courses of study leading to that assessment.
Industry Training Organisations must be accredited by NZQA before they can register
credits from assessment against unit standards.
Accredited providers and Industry Training Organisations assessing against unit standards
must engage with the moderation system that applies to those standards.
 New Zealand Qualifications Authority 2016
25117 version 1
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Accreditation requirements and an outline of the moderation system that applies to this
standard are outlined in the Accreditation and Moderation Action Plan (AMAP). The
AMAP also includes useful information about special requirements for organisations
wishing to develop education and training programmes, such as minimum qualifications for
tutors and assessors, and special resource requirements.
Comments on this unit standard
Please contact the Boating Industry Training Organisation training@bia.org.nz if you wish
to suggest changes to the content of this unit standard.
 New Zealand Qualifications Authority 2016