This unit of competency supports the achievement of skills and knowledge to manufacture stair components for curved and geometric stairs, which may include working with others and as a member of a team.

CPCCOHS2001A

Apply OHS requirements, policies and procedures in the construction industry

ELEMENT

PERFORMANCE CRITERIA

1. Plan and prepare.

1.1. Work instructions and operational details are obtained using relevant information, confirmed and applied for planning and preparation purposes.

1.2. Safety (OHS) requirements are followed in accordance with safety plans and policies.

1.3. Signage and barricade requirements are identified and implemented.

1.4. Tools and equipment selected to carry out tasks are consistent with job requirements, checked for serviceability and any faults are rectified or reported prior to commencement.

1.5. Material quantity requirements are calculated in accordance with plans, specifications and quality requirements.

1.6. Materials appropriate to the work application are identified, obtained, prepared, safely handled and located ready for use.

1.7. Environmental requirements are identified for the project in accordance with environmental plans and statutory and regulatory authority requirements, and are applied.

2. Manufacture strings for geometric curves.

2.1. Material is prepared to designed structural requirements.

2.2. Curved wall/profile is constructed to curve design of stair.

2.3. Developed pitch is set out to curved wall/profile location.

2.4. String is manufactured in accordance with curved wall and set out to specifications.

3. Prepare strings for assembly.

3.1. Strings are set out for treads and risers with nosing marked accurately, housings cut and waste removed accurately to set-out and depth.

3.2. Grooves or mortises to receive balusters are run/carried out to set-out requirements.

3.3. Open strings are cut to set-out shape for treads and risers and ends of strings are cut to set-out requirements for junction with newels/landing or left long for on-site fitting with string marked for identification where applicable.

4. Set out and manufacture curved and geometric stair post for spiral stairs.

4.1. Curved and geometric stairs are set out to specifications.

4.2. Post is manufactured and/or dressed to designed shape and set out to designed requirements of stair.

4.3. Housings are cut and made accurately to set-out and required depth.

5. Prepare newels for assembly.

5.1. Housings are cut and made accurately to newel set-out and required depth.

5.2. Mortises are cut and made accurately to set-out and required depth and newels are marked for identification, where applicable.

6. Cut treads, risers and wedges to length and shape.

6.1. Treads are cut to designed length and shape.

6.2. Risers are cut to designed length and requirement for junction with string.

6.3. Wedges are marked to design and cut to shape and quantity.

7. Prepare balustrade components.

7.1. Handrail is manufactured to shape with groove run for balusters, where applicable, and mortises in handrail for balusters are made accurately to set-out.

7.2. Balusters are cut to designed length.

7.3. Handrail is cut to length and sections are marked for identification, where applicable.

8. Finish surface and preassemble stair.

8.1. Exposed surfaces of components are sanded to specification for finish and component parts are checked to ensure they will fit to specification.

8.2. Components are preassembled to ensure stair will assemble appropriately.

9. Clean up.

9.1. Materials are stacked and/or stored for transportation.

9.2. Work area is cleared and waste material disposed of safely.

9.3. Tools and equipment are cleaned, maintained and stored.

Required skills

Required skills for this unit are:

ability to recognise procedures, respond to change and contribute to workplace responsibilities, such as current work site environmental or sustainability frameworks or management systems

communication skills to:

enable clear and direct communication, using questioning to identify and confirm requirements, share information, listen and understand

follow instructions

read and interpret drawings and specifications

use and interpret non-verbal communication

use language and concepts appropriate to cultural differences

innovation skills to select appropriate tools and equipment, respond to workplace challenges and put ideas into action

numeracy skills to apply measurements and calculations

planning and organisational skills to identify requirements, apply relevant resources and sequence tasks

problem solving skills to recognise and take action to rectify minor faults and problems

teamwork skills to be able to work with others to action tasks and relate to people from a range of cultural, social, ethnic backgrounds and with varying physical and mental abilities.

Required knowledge

Required knowledge for this unit is:

basic curved stair design

Building Code of Australia (BCA) requirements relevant to stair construction

commonly used stair construction and joining methods

interpretation of drawings and specifications

job safety analysis (JSA) and safe work method statements

material identification marking systems

measuring and setting out processes relevant to curved stair construction

organisation's quality assurance requirements

types and characteristics of stairs

types and use of adhesives, fixings and fasteners related to stair construction

types and use of static machines

types of materials and their characteristics related to stair construction

workplace and equipment safety requirements.

The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.

Overview of assessment

This unit of competency could be assessed in the workplace or a close simulation of the workplace environment, provided that simulated or project-based assessment techniques fully replicate construction workplace conditions, materials, activities, responsibilities and procedures.

Critical aspects for assessment and evidence required to demonstrate competency in this unit

A person who demonstrates competency in this unit must be able to produce all components for assembly of two stair types, one with a cut and closed string and one an open string, providing evidence of the ability to:

comply with OHS regulations applicable to workplace operations

apply organisational quality procedures and processes within context of manufacturing components for curved stairs

identify design of stair and details of component composition and design

identify methods of manufacturing, setting out techniques and materials required

select and use appropriate processes, tools and equipment to construct and manufacture components

select appropriate material and safe and effective procedures to use machines and prepare material to initial requirements

adopt appropriate and efficient procedures to construct curved strings to designed requirements

use correct procedures in setting out and using machines, power tools and hand tools to mould and manufacture components to designed shape

safely and efficiently prepare all components for assembly

check all component connections to ensure joints will fit in assembly

adopt safe and effective handling procedures for movement and placement of materials and components

identify typical faults and problems that occur and action required to rectify them

communicate with others to ensure safe and efficient workshop operations.

Context of and specific resources for assessment

This competency is to be assessed using standard and authorised work practices, safety requirements and environmental constraints.

Assessment of essential underpinning knowledge will usually be conducted in an off-site context.

Assessment is to comply with relevant regulatory or Australian standards' requirements.

1.1. Resource implications for assessment include:

workshop location and appropriate workspace

static machines appropriate for activity

set-out materials and components prepared for manufacturing processes

tools and equipment appropriate for activity

drawings and documentation relevant to design.

Reasonable adjustments for people with disabilities must be made to assessment processes where required. This could include access to modified equipment and other physical resources, and the provision of appropriate assessment support.

Method of assessment

Assessment methods must:

satisfy the endorsed Assessment Guidelines of the Construction, Plumbing and Services Training Package

include direct observation of tasks in real or simulated work conditions, with questioning to confirm the ability to consistently identify and correctly interpret the essential underpinning knowledge required for practical application

reinforce the integration of employability skills with workplace tasks and job roles

confirm a reasonable inference that competency is not only verified under the particular assessment circumstance, but is able to be transferred to other circumstances and environments.

Validity and sufficiency of evidence requires that:

competency will need to be demonstrated over a period of time reflecting the scope of the role and practical requirements of the workplace

where the assessment is part of a structured learning experience the evidence collected must relate to a number of performances assessed at different points in time and separated by further learning and practice with a decision on competency only taken at the point when the assessor has complete confidence in the person's demonstrated ability and applied knowledge

all assessment that is part of a structured learning experience must include a combination of direct, indirect and supplementary evidence.

Assessment processes and techniques should, as far as is practical, take into account the language, literacy and numeracy capacity of the candidate in relation to the competency being assessed.

Supplementary evidence of competency may be obtained from relevant authenticated documentation from third parties, such as existing supervisors, team leaders or specialist training staff.

The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.

Information includes:

diagrams or sketches

instructions issued by authorised organisational or external personnel

manufacturer specifications and instructions, where specified

material safety data sheets (MSDS)

memos

regulatory and legislative requirements pertaining to manufacturing stair components

relevant Australian standards

safe work procedures relating to manufacturing stair components

signage

verbal, written and graphical instructions

work bulletins

work schedules, plans and specifications.

Planning and preparation include:

assessment of conditions and hazards

determination of work requirements and safety plans and policies

equipment defect identification

work site inspection.

Safety (OHS) is to be in accordance with state and territory legislation and regulations and project safety plan and may include:

emergency procedures, including extinguishing fires, organisational first aid requirements and evacuation

hazard control

hazardous materials and substances

organisational first aid

PPE prescribed under legislation, regulations and workplace policies and practices

safe operating procedures, including the conduct of operational risk assessment and treatments associated with:

concealed services (water, power and gas)

lighting

restricted access barriers

traffic control

work site visitors and the public

working at heights

working in confined spaces

working in proximity to others

use of firefighting equipment

use of static machines

use of tools and equipment

workplace environmental requirements and safety.

Tools and equipment include:

chisels

clamps

hammers

hand saws

jig saws

measuring tapes and rules

power drills

power saws

routers

saw stools

spirit levels

squares

work bench.

Quality requirements include:

attention to machining processes

control of handling procedures

quality of materials

relevant regulations, including:

AS1473 Guarding and safe use of woodworking machinery

internal company quality policy and standards

manufacturer specifications where specified

workplace operations and procedures

use and maintenance of equipment

workplace operations and procedures.

Materials include:

metal

timber.

Environmental requirements include:

clean-up management

dust and noise

stormwater protection

waste management.

Statutory and regulatory authority includes:

federal, state and local authorities administering applicable Acts, regulations and codes of practice.

Stair includes:

curved

geometric

open or closed strings

spiral.

Manufactured may include using:

band saw

buzzer

docking saw

mortiser

spindle shaper.

Unit sector

Construction

Nil

This unit contains employability skills.