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Follow the links below to find material targeted to the unit's elements, performance criteria, required skills and knowledge

Elements and Performance Criteria

1. Interpret plans and loading conditions
   • Interpret and assess plans, drawing views and notes; identify loading information, design requirements and restrictions.
   • Obtain additional information and data from appropriate personnel or sources.
   • Create functional and pictorial image of structure, trusses or frames based on design requirements.
2. Develop and select truss, frame or floor component layout options
   • Transfer fixed design details to component layout drawings.
   • Nominate engineered or pre-assembled components in line with budgetary constraints.
   • Define design sizes and spacing details in line with industry standards.
   • Select layouts and spacing of individual structural members progressively to meet design requirements.
   • Fix component sizes to clarify and firm design options.
3. Detail truss, frame or floor component design
   • Calculate, scale or extract physical dimensions for components from applicable code tables.
   • Interpret effective lengths and spans for individual components from layout, and select cross-sections in line with applicable codes.
   • Select material options for suitability, availability, cost effectiveness and use consistently throughout design.
   • Detail component placement and spacing to site and customer standards.
   • Provide design specifications for engineered or pre-assembled components in line with manufacturer's recommendations.
   • Present detailed and accurate production information, dimensions and notes within drawing views.
   • Complete and maintain design records and documentation in line with organisational procedures.
4. Provide design and production advice
   • Answer questions about designs and assembly requirements clearly and comprehensively.
   • Use effective communication techniques to assist and develop production personnel.
   • Provide alternative materials and sizes for components within scope of design and production requirements.

Range Statement

Not Applicable

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Performance Evidence

A person demonstrating competency in this unit must satisfy all of the elements, performance criteria and foundation skills of this unit. If a specific volume or frequency is not stated below, then evidence must be provided that the following requirements have been performed on at least one occasion:

prepare and document designs for timber structures in line with an individual design and set of drawing views and notes

interpret drawings and loading conditions

interpret and apply technical information and conveying information in sritten, sketch and oral form

apply mathematical procedures

develop and select truss, frame or floor layout options

provide design and production advice.

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Knowledge Evidence

A person competent in this unit must be able to demonstrate knowledge of:

applicable building and structural regulations for standard timber wall frames, roof and floor trusses, including

AS1684 and supplementary tables

CSIRO supplementary tables

the Building Code of Australia

other regulations relevant to this task

nail plate provider standards

loading information including

details defining mass loads and externally applied loads (wind, surrounding structures, common/special building usage)

dimensions defining geometry and loading of individual structural members

common industry terminology for all components of timber wall frames, roof and floor trusses

common industry standard layouts, spacing and sizing dimensions of individual members for timber wall frames, roof and floor structures

relationship between component loads and supports and spans

range of timber species and types that are suitable for the manufacture of timber wall frames, roof and floor trusses

methods used to produce structural layout drawings and assembly drawings

industry and specific organisational:

processes for producing designs for timber roof, wall and floor structures

formats for and inclusions of drawings and notes

organisational procedures for preparing and documenting preparing and documenting designs for timber wall frames, roof and floor trusses.

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