Unit of competency Outline
Date retreived
22/07/2026 4:52 PM AWST
22/07/2026 4:52 PM AWST
Whilst all efforts are made to provide accurate and timely information from the relevant source/documentation, please be aware that the information supplied may not be the most current version. The accuracy of the detail has not been confirmed by the Department and therefore should not be relied upon without first confirming the contents.
Read plans and calculate plumbing quantities
Read plans and calculate plumbing quantities
Unit of competency
National Code
CPCPCM2004A
CPCPCM2004A
State Code
W9629
W9629
TGA Status
Replaced
Replaced
DTWD Status
Replaced
Replaced
State Implementation and Classification
Approved Date
10/07/2012
Field of Education
040307 - Building Construction Economics
Original Release Date
10/07/2012
Nominal Hours
12
Description
This unit of competency specifies the outcomes required to use and interpret plans and specifications associated with construction work, and accurately complete measurements and calculations to establish quantities of materials for plumbing work.The unit requires the interpretation of plans, drawings and specifications to interpret requirements, and making measurements and calculations to determine quantities of plumbing materials.
Notes
Elements and Performance Criteria
1. Prepare for work.
- 1.1. Plans, drawings, specifications and standards are obtained and required calculations are identified.
- 1.2. Safety (OHS) requirements associated with reading plans, calculating plumbing requirements and the workplace environment are adhered to throughout the work.
- 1.3. Quality assurance requirements are identified and adhered to in accordance with workplace requirements.
- 1.4. Work area and materials are prepared to support the efficient reading of plans and the calculation of plumbing requirements.
2. Identify types of drawings and their functions.
- 2.1. Main types of plans and drawings used in the plumbing industry are identified.
- 2.2. Key functions of each type of drawing are identified.
- 2.3. Key users of drawings are identified.
3. Recognise commonly used scales, symbols and abbreviations.
- 3.1. Commonly used scales, symbols and abbreviations are applied.
- 3.2. Function of legend is understood and identified.
4. Locate and identify key features on a services plan.
- 4.1. Key features and dimensions of sectional details and elevations in a plan are identified and located.
- 4.2. Location and types of services are identified.
- 4.3. General and structural features and major horizontal and vertical measurements are located.
5. Read and interpret job specifications.
- 5.1. Purpose of job specification is identified.
- 5.2. Details in job specification are obtained.
- 5.3. Job specifications are read in conjunction with plans.
6. Obtain measurements and perform calculations.
- 6.1. Work measurements are obtained.
- 6.2. Quality assurance requirements associated with calculations are applied.
- 6.3. Measurements and dimensions are obtained from plans.
- 6.4. Simple calculations are carried out.
7. Calculate material quantities.
- 7.1. Material quantities are calculated from job instructions.
- 7.2. Information from plans, specifications and work area are obtained from job instructions.
- 7.3. Measurements are correctly identified and recorded.
- 7.4. Quantities of materials suitable for work are calculated and recorded according to job instructions.
8. Clean up.
- 8.1. Work area is cleared in accordance with workplace procedures.
- 8.2. Tools and equipment are cleaned, checked, maintained and stored in accordance with manufacturer recommendations and workplace procedures.
- 8.3. Information is accessed and documentation completed in accordance with workplace requirements.
handling of materials
hazard control
hazardous materials and substances
personal protective clothing and equipment prescribed under legislation, regulations and workplace policies and practices
use of firefighting equipment
use of first aid equipment
use of tools and equipment
workplace environment and safety.
Australian standards
Environment Protection Authority (EPA)
internal company quality assurance policy and risk management strategy
International Standards Organisation
site safety plan
workplace operations and procedures.
Types of
elevations and sections
floor plans
mechanical services and drainage plans
sanitary plans
sewerage plans
site plans
specifications.
Key features of detailed
boundaries
building lines
cross-sections of construction details
easements
layout of rooms
location of works relative to other buildings
orientation
service locations
shape of building and structure
type of construction
type of structure, including structural members
vertical and horizontal measurements.
are to be in metric scale
cover all dimensions used in plumbing
involve the use of:
calipers
dividers
rulers
squares
tape measures
may involve laser or similar technology.
are to be performed manually and with the aid of a calculator
are to include:
area
circumference
diameter
force
length
mass
perimeter
pressure
ratios (e.g. ingredients, elements and triangulation)
scales
volume
require numeracy skills to apply the basic arithmetic calculations of addition, subtraction, multiplication and division in order to estimate simple projects and determine consumables required for a task.
instructions issued by authorised organisational or external personnel
manufacturer specifications and instructions
organisation work specifications and requirements
recognised formulas or tables accepted by the regulatory authority
regulatory and legislative requirements, particularly those pertaining to:
building codes
OHS and environmental requirements
plumbing and gasfitting authority regulations
relevant Australian standards
safe work procedures relating to reading plans and calculating plumbing requirements
verbal, written and graphical instructions, including:
charts and hand drawings
diagrams or sketches
job drawings
material safety data sheets (MSDS)
memos
plans and specifications
signage
work bulletins
work schedules.
Key features of
material details
preferred suppliers
quality of finishes
quantities
skill requirements.
drawings
plans
specifications.
calculators
laser measuring devices
logarithmic tables
regulatory authority approved tables and formulas
rulers, dividers, tape measures or squares.
hazard control
hazardous materials and substances
personal protective clothing and equipment prescribed under legislation, regulations and workplace policies and practices
use of firefighting equipment
use of first aid equipment
use of tools and equipment
workplace environment and safety.
Australian standards
Environment Protection Authority (EPA)
internal company quality assurance policy and risk management strategy
International Standards Organisation
site safety plan
workplace operations and procedures.
Types of
elevations and sections
floor plans
mechanical services and drainage plans
sanitary plans
sewerage plans
site plans
specifications.
Key features of detailed
boundaries
building lines
cross-sections of construction details
easements
layout of rooms
location of works relative to other buildings
orientation
service locations
shape of building and structure
type of construction
type of structure, including structural members
vertical and horizontal measurements.
are to be in metric scale
cover all dimensions used in plumbing
involve the use of:
calipers
dividers
rulers
squares
tape measures
may involve laser or similar technology.
are to be performed manually and with the aid of a calculator
are to include:
area
circumference
diameter
force
length
mass
perimeter
pressure
ratios (e.g. ingredients, elements and triangulation)
scales
volume
require numeracy skills to apply the basic arithmetic calculations of addition, subtraction, multiplication and division in order to estimate simple projects and determine consumables required for a task.
instructions issued by authorised organisational or external personnel
manufacturer specifications and instructions
organisation work specifications and requirements
recognised formulas or tables accepted by the regulatory authority
regulatory and legislative requirements, particularly those pertaining to:
building codes
OHS and environmental requirements
plumbing and gasfitting authority regulations
relevant Australian standards
safe work procedures relating to reading plans and calculating plumbing requirements
verbal, written and graphical instructions, including:
charts and hand drawings
diagrams or sketches
job drawings
material safety data sheets (MSDS)
memos
plans and specifications
signage
work bulletins
work schedules.
Key features of
material details
preferred suppliers
quality of finishes
quantities
skill requirements.
drawings
plans
specifications.
calculators
laser measuring devices
logarithmic tables
regulatory authority approved tables and formulas
rulers, dividers, tape measures or squares.
Overview of assessment
This unit of competency could be assessed in the workplace or a close simulation of the workplace environment providing that simulated or project-based assessment techniques fully replicate plumbing and services 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 provide evidence of:
locating, interpreting and applying relevant information, standards and specifications for reading plans and calculating plumbing quantities
applying safety requirements throughout the work sequence, including the use of personal protective clothing and equipment
as a minimum the ability to, given the plans and specifications for a project, complete the following in respect of interpreting the plans and determining quantities:
identify type and purpose of the plan and drawing
identify its dimensions, symbols, abbreviations, key features, title and reference date (as current version)
identify required specifications and their impact and influence on the plumbing requirements of the project
draw a freehand sketch of the plumbing requirement of the project
from measurement and calculation, indicating items of plumbing material required, ensuring:
correct selection and use of appropriate processes, tools and equipment
completion of all work to specification
compliance with regulations, standards and organisational quality procedures and processes
communication and working effectively and safely with others.
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.
Resource implications for assessment include:
an induction procedure and requirement
realistic tasks or simulated tasks covering the mandatory task requirements
relevant specifications and work instructions
tools and equipment appropriate to applying safe work practices
support materials appropriate to activity
workplace instructions relating to safe working practices and addressing hazards and emergencies
material safety data sheets
research resources, including industry related systems information.
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 Integrated Framework 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 that competency is verified and 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 the 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.
This unit of competency could be assessed in the workplace or a close simulation of the workplace environment providing that simulated or project-based assessment techniques fully replicate plumbing and services 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 provide evidence of:
locating, interpreting and applying relevant information, standards and specifications for reading plans and calculating plumbing quantities
applying safety requirements throughout the work sequence, including the use of personal protective clothing and equipment
as a minimum the ability to, given the plans and specifications for a project, complete the following in respect of interpreting the plans and determining quantities:
identify type and purpose of the plan and drawing
identify its dimensions, symbols, abbreviations, key features, title and reference date (as current version)
identify required specifications and their impact and influence on the plumbing requirements of the project
draw a freehand sketch of the plumbing requirement of the project
from measurement and calculation, indicating items of plumbing material required, ensuring:
correct selection and use of appropriate processes, tools and equipment
completion of all work to specification
compliance with regulations, standards and organisational quality procedures and processes
communication and working effectively and safely with others.
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.
Resource implications for assessment include:
an induction procedure and requirement
realistic tasks or simulated tasks covering the mandatory task requirements
relevant specifications and work instructions
tools and equipment appropriate to applying safe work practices
support materials appropriate to activity
workplace instructions relating to safe working practices and addressing hazards and emergencies
material safety data sheets
research resources, including industry related systems information.
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 Integrated Framework 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 that competency is verified and 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 the 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.
Replaces
| State Code | National Code | Title | Type |
|---|---|---|---|
| W1253 | BCPCM2004A | Read plans and calculate plumbing quantities | Unit of competency |
Replaced By
| State Code | National Code | Title | Type |
|---|---|---|---|
| WF831 | CPCPCM2040A | Read plans and calculate plumbing quantities | Unit of competency |
| State Code | National Code | Title | Type |
|---|---|---|---|
| W574 | CPC20708 | Certificate II in Drainage | Qualification |
| D387 | CPC20711 | Certificate II in Drainage | Qualification |
| W604 | CPC32808 | Certificate III in Fire Protection | Qualification |
| D415 | CPC32811 | Certificate III in Fire Protection | Qualification |
| D414 | CPC32711 | Certificate III in Gas Fitting | Qualification |
| W603 | CPC32708 | Certificate III in Gas Fitting | Qualification |
| W575 | CPC20808 | Certificate II in Metal Roofing and Cladding | Qualification |
| D388 | CPC20811 | Certificate II in Metal Roofing and Cladding | Qualification |
| D411 | CPC32411 | Certificate III in Plumbing | Qualification |
| W600 | CPC32408 | Certificate III in Plumbing | Qualification |
| 1457 | 52201 | Certificate II in Plumbing and Gas Fitting (Pre-Apprenticeship) | Accredited course |
| D413 | CPC32611 | Certificate III in Roof Plumbing | Qualification |
| W602 | CPC32608 | Certificate III in Roof Plumbing | Qualification |
| D389 | CPC20911 | Certificate II in Urban Irrigation | Qualification |
| W576 | CPC20908 | Certificate II in Urban Irrigation | Qualification |