# CPCCOM3001 Perform construction calculations to determine carpentry material requirements

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Building and Construction Works is a series of training and assessment resources developed for units of competency and qualifications within the Construction, Plumbing and Services Training Package.

 Contents

 Student information
 Assessment details This unit of competency specifies the skills and knowledge required to plan and perform calculations to determine material requirements for a construction project. Completion of the general construction induction training program specified by the model Code of Practice for Construction Work is required for any person who is to carry out construction work. Achievement of CPCCWHS1001 Prepare to work safely in the construction industry meets this requirement. Assessment for this unit comprises: »  Knowledge test »  Materials List. A Materials List template, a Workings Sheet and an Assessor checklist are provided in this Workbook. Review these documents before you get started so you are clear on what you need to do. Speak to your trainer, assessor or workplace supervisor if you have questions.

nowledge test

Answer each of the questions below. You need to answer all questions correctly to receive a satisfactory outcome for this task.

 1.   Write down the formula used to calculate the volume of: »  A rectangular prism The formula of rectangular prism volume: – V = L*B*H »  A sphere The formula of sphere volume: – V = 4/3 π r³ »  A triangular prism The formula of triangular prism volume: – V = ½ BHL »  A trapezium The formula of trapezium volume: – Area of trapezium base= 1/2 *(A+B) * H * L »  A cube The formula of a cube volume: – V = √3 × d3/9 »  A cylinder The formula of cylinder volume: – V = π r² h

 2.   Write down the formula used to calculate the area of: »  A rectangle The formula of a rectangle area: – A = L * B »  A square The formula of a square area: – A = SIDE * SIDE »  A circle The formula of a circle area: – A = π r² »  A triangle The formula of a triangle area: – A = ½ * BASE * HEIGHT »  A trapezium The formula of trapezium area: – Area of trapezium base= 1/2 *(a+b) * h »  A cube (surface area) The formula of a cube area: – A = 6a2 »  A cylinder (surface area) The formula of a cylinder area: – A = 2π r h + 2π r²
 3.   Write down the method you use to convert millimeters to meters. The method is M = MM value /1000 4.   Write down the method you use to convert meters to millimeters. The method is MM = M value * 1000 5.   For each of the following, describe how it can be used for calculating and/or measuring materials. Also, write down at least one limitation/problem. »  Calculator A calculator is used for calculations such as addition, subtraction, multiplication, and division to calculate material prices, quantity, or measurements (Tan, et al., 2019). The limitation of a calculator is that it is not capable to calculate the mass value of large datasets. »  Spreadsheet program A spreadsheet program (MS Excel) is used for checking balance inventory, calculating costs, and estimating project materials (Gonzalez-Platas, et al., 2016). The limitation of spreadsheet programs is that they cannot be used by anyone because they require some level of computer proficiency. »  ‘In the head’/’pen and paper method The in-the-head or pen-and-paper is useful for quick and simple calculations and can be used to estimate material quantities. The limitation of this is that it is prone to human errors, especially when dealing with large numbers or complex calculations. »  Estimating software Estimating software can be used to calculate the cost of materials and labor for construction. The limitation of estimating software is that it is quite expensive compared to other tools. 6.   Explain the importance of reviewing the drawings, schedules, and specifications of a carpentry project in relation to performing a materials take-off. It is quite important in terms of providing clear instructions, maintaining standards and quality, accuracy, helpful in project closure, and providing clear, concise, and rich information about the project. 7.   List one requirement from each of the following that you may need to consider when completing a materials take-off: »  NCC NCC may require consideration of material quantity and project design. »  Australian Standards It may require consideration of relevant legislation and standards. »  Work health and safety It may require consideration of any risks to workers or the public during construction (Sánchez, et al., 2017). »  Environmental requirements It may require consideration of the environmental impact of materials and ensuring compliance with relevant regulations. »  Manufacturer’s specifications It may require consideration of materials selected that are compatible with the manufacturer’s installation. »  Workplace requirements It may require consideration of workplace policies and procedures, such as using approved suppliers and purchasing methods.
 Assessment outcome – CPCCOM3001 Perform construction calculations to determine carpentry material requirements: Knowledge test ¨  Satisfactory ¨  Not satisfactory Assessor signature: Assessor name: Date:

Reference

Gonzalez-Platas, J., Alvaro, M., Nestola, F., & Angel, R. (2016). EosFit7-GUI: a new graphical user interface for equation of state calculations, analyses and teaching. Journal of Applied Crystallography, 49(4), 1377-1382. http://www.rossangel.com/Download/2016_GonzalezPlatas_etal_EosFitGUI.pdf

Sánchez, F. A. S., Peláez, G. I. C., & Alís, J. C. (2017). Occupational safety and health in construction: a review of applications and trends. Industrial health, 55(3), 210-218. https://www.jstage.jst.go.jp/article/indhealth/55/3/55_2016-0108/_pdf

Tan, S. L., Jotani, M. M., & Tiekink, E. R. (2019). Utilizing Hirshfeld surface calculations, non-covalent interaction (NCI) plots and the calculation of interaction energies in the analysis of molecular packing. Acta Crystallographica Section E: Crystallographic Communications, 75(3), 308-318. https://journals.iucr.org/e/issues/2019/03/00/hb7798/hb7798.pdf

materials list

Using the plans/drawings and specs provided by your assessor, fill out this Materials List. Use the Workings Sheet to record all your calculations.

You can set your list out in whatever order suits you – you may like to order your list by material type or by room, just make sure you have included all required materials.

Allow for a nominated waste factor (10%).

 Drawing ref Description L W H V Qty Working Sheet Write down all the calculations you use. Double check all your calculations. Use pen (so your assessor can see any changes you make).

Assessor checklist – CPCCCO2013 Carry out concreting to simple forms

 Student name:
 Did the student Satisfactory Not satisfactory Comment Initials Use drawings and specs to confirm the dimensions of all carpentry materials? Correctly calculate dimensions and quantity of flooring sheets? Choose most economical layout of linear floor materials? Correctly calculate length of linear flooring materials dimensions and quantities? Correctly calculate dimensions and quantity of wall framing materials required? Correctly apply area calculation to determine quantities of all wall linings? Correctly calculate dimensions and quantity of wall lining sheets? Correctly apply area calculation to determine total area of building wrap required? Choose most economical layout of external wall cladding (sheets)? Correctly calculate quantities and dimensions of sheets of external cladding? Choose most economical layout of external wall cladding (linear length)? Correctly calculate length and quantities of linear external cladding dimensions and quantities (including overlap)? Correctly apply area calculation to determine quantities of each type of roofing material? Choose most economical layout of roof sheeting materials (linear length)? Correctly calculate dimensions and quantity of roofing sheeting materials required (including overlap)? Correctly calculate dimensions and quantity of all types of roof framing materials required? Apply correct calculations to determine volume of specific material quantities? Review all calculations? Record the results of all calculations made?
 Assessment outcome – CPCCOM3001 Perform construction calculations to determine carpentry material requirements: Materials List (inc Workings Sheet) ¨  Satisfactory ¨  Not satisfactory Assessor signature: Assessor name: Date: