Teachers tip for 4004 Skills Assessment 1 Task 6 Roof area
Teachers tip for 4004 Skills Assessment 1 Task 6 Roof area
Task 6.1(a)
Defining sine, cosine and tangent in a right angled triangle (a typical section through a roof):
The sine of an angle equals the opposite side divided by (over) the hypotenuse.
The cosine of an angle equals the adjacent side divided by (over) the hypotenuse.
The tangent of an angle is equal to the opposite side divided by (over) the adjacent side.
Put in a simpler form:
sine (of an angle) = opposite side/hypotenuse
cos (of an angle) = adjacent side/hypotenuse
tan (of an angle) = opposite side/adjacent side
Nominate roof areas
Roof pitch = 22.5.
Plan of the Brown House roof and nominated areas
Sides of a right-angle triangle
You must determine the slope distance using trigonometry.
Using the above information.
The slope distance = half the plan length or half span (adjacent) cos of the roof pitch
For the Brown House you need to use the halves of the three areas shown and you will use cos 22.5
Area of tiles will be slope X length.
Slope is as discussed above.
Length comes from the Plan dimensions do not forget to include the eaves overhang.
Note that the area of a hip ended roof is the same as that of a gable end if the eave overhang is the same.
Teachers tip for 4004 Skills Assessment 1 Task 6 Hip length
Ridge lengths can be determined using dimensions on the Floor Plan.
Verge pointing can be determined using trigonometry, the span of the roof (taking eaves into account) and the slope of the roof.
Hip length is more of a challenge as it takes more steps to calculate.
Firstly, the plan length of the hip needs to be determined.
So, the plan (horizontal) length of the hip can be found using the Pythagorean Theorem, and the fact that the angle that the hip makes with the edge of the roof is 45 degrees.
By way of example, and using the corner shown above, the plan hip length under A is:
Plan hip length = (x2 + x2)
This gives the plan (horizontal) length of the hip.
Then we need to find how high the roof is at the top of the hip (the ridge) to find the length of the hip on the slope.
The rise will require determining the height by applying tan to the roof with a pitch of 22.5
Tan 22.5 = vertical height x (half width of roof)
Vertical height = tan 22.5 x xNow to find Length of hip
Length of hip = (roof height2 + plan hip length2)
A note on the broken hip above Kitchen, Family, Dining:
This can be determined by using the difference between the two half spans of the two roofs. This gets the plan length and follow the procedures for the slope length discussed earlier.
Teacher Tips for Skills assessment 1
Before you use these help notes, please consider the following:
The nett rates are not specific to a job. They are to price a type of work and express a cost on the basis of a small unit of work so that it can be applied to any project. You should work out the nett rates first and then use them to price the quantities that you have worked out.
Using someone elses work does not always give you the correct answer and does not necessarily benefit your understanding. Remember that learning is lifelong and there are no shortcuts to understanding the work.
Please refer to the following help notes for some of the tasks in your assessment:
Task 1.1
Some of you are forgetting that there are FIVE (5) mandatory inspections.
Task 2 Concrete
Do Task 2.2 first, since it will give you a rate for materials, labour and plant, per cubic metre of concrete which you can use when you have calculated the concrete volume.
Use a basis of 10 m3 (not the quantity you calculate from Task 2.1)
Set out your nett rate like this:
Number each Item 1 to
Fill in the Unit, Quantity and Rates columns, then the Total column. Then fill in the Nett cost and the Nett rate and show per m3 (as per above). You will now have a nett rate that you can use for Task 2.1 when you have calculated the quantity.
See below for an example with the columns filled in (note that this is not for a ground slab, and it is on the basis of 20 m3, not 10 m3 which you will be using)
Task 2.1
For this task, it is important that you set everything out clearly. You should itemise everything label each length of the external beam and note each length in your quantities separately (on a new line); add to get total length, then use the cross-sectional area to find the volume. Similarly with the internal beams. If there is a beam that is not standard, then do it separately.
Use the detail drawings of the footings to determine the cross-sectional area see example below.
0-4345The cross-sectional area for the external beam (see left) will be area 1 + area 2
With the slab, divide it into areas, label them and then show your calculations based on your area break-up.
Note that you will need to subtract the edge rebate from your slab dimensions or volume.
Task 3 Bricks
Again, the nett rates in Task 3.2a and 3.2b are based on 20 m2 or 1000 bricks for brickwork, and 20 m or 240 bricks for the sills. Do this task first. DO NOT USE the quantities you calculate for this house. You are using these standard quantities to find a nett rate. Then you can use this nett rate to work out the cost for the job.
Use the information provided. Set it out as before. Then determine a rate per brick and per m of sill.
Task 3.1
For each section of wall, one line for length, total at bottom.
Note that the height of the brickwork is not the same as the height of the timber frame because of the roof slope and the eave. This is known as eave drop off.
In order to work out the height of wall, you will need to deduct the 'drop off'.
Example to work out drop off:
Wall height - roof pitch x (eaves width + brickwork + cavity)
2.44m - tan 22.5 x (0.450m +0.150m)
Eaves drop off = 0.249m
therefore
Wall height = 2.44m 0.249m
= 2.191m
When you are working out the deductions for the openings, itemise them, one line per opening. Height in next column x width in next column = area in next column. Then add to give total.
Example of setting out:
For sills, again, itemise for each window (you have the list from the deductions you just did above).
Task 4 Carpentry
Do all nett rates first (Tasks 4.2a, b, c, d) using the information provided according to the basis instructed (per door or per 100 m)
Task 4.1
Itemise by door number (D01, D02, D03, etc.)
For architraves, remember that internal doors will have architraves both sides. Itemise them all with item, height, width, total.
Note that architrave will be available in set lengths: assume for this exercise that architrave is ONLY AVAILABLE in 5.4 m lengths. Hence a standard door can be fitted on one side with one length of 5.4m.
For skirting, again itemise per wall in each room, and assume for this exercise that finger-jointed pine skirting is used and is ONLY AVAILABLE in 5.4 m lengths. Note that full wall lengths are to be used in each room. Joins only permitted for walls exceeding 5.4 m in length.
Task 6 Roof cladding
Task 6.1
Please note! The roof area noted in the schedule of areas on the project plans is the PLAN AREA. It is not taking account of the roof slope, so do not think that you need to get a figure that is +/- 10% of this. This statement is incorrect. You need to get +/- 10% of the correct roof area.
When calculating capping tiles include both ridge and hip capping tiles.
Task 6.2
The nett rate in Task 6.2 should be calculated on an area of roof, say 10 m2.
Task 7 Overhead and profit margin
Dont forget there are FIVE inspections.
Calculate and add overhead first, then add profit and then GST.
Assessment 2 - Skills
Criteria
Unit code, name and release number
CPCCBC4004A-UNGRADED - Identify and produce estimated costs for building and construction projects (1)
Qualification/Course code, name and release number
CPC40110 - Certificate IV in Building and Construction (Building) (7)
Student details
Student number
Student name
Assessment Declaration
This assessment is my original work and no part of it has been copied from any other source except where due acknowledgement is made.
No part of this assessment has been written for me by any other person except where such collaboration has been authorised by the assessor concerned.
I understand that plagiarism is the presentation of the work, idea or creation of another person as though it is your own. Plagiarism occurs when the origin of the material used is not appropriately cited. No part of this assessment is plagiarised.
Student signature and Date
Version:28/06/2019
Date created: CREATEDATE @ "d MMMM yyyy" * MERGEFORMAT 02/08/2018
Date modified: DATE @ "dd/MM/yyyy" * MERGEFORMAT 02/11/2022
For queries, please contact:
Infrastructure, Energy and Construction SkillsPoint
Mount Druitt
2019 TAFE NSW, SydneyRTO Provider Number 90003 | CRICOS Provider Code: 00591E
This assessment can be found in the: Learning BankThe contents in this document is copyright TAFE NSW 2019, and should not be reproduced without the permission of the TAFE NSW. Information contained in this document is correct at time of printing: DATE @ "d MMMM yyyy" * MERGEFORMAT 2 November 2022. For current information please refer to our website or your teacher as appropriate.
Assessment instructions
Table SEQ Table * ARABIC 1 Assessment instructions
Assessment details Instructions
Delivery Mode This unit of competency is to be delivered via TAFE Digital, TAFE NSW online platform.
The intention of this program is to be undertaken by the student via an online mode, through distance learning, and therefore all assessment tasks are reflective of this process.
Assessment overview The objective of this assessment is to assess your knowledge as would be required to establish the estimated costs associated with the acquisition of materials and labour on building and construction sites, together with the application of relevant overhead costs and margins. Knowledge of physical resource and supplier identification, assessment of the availability of and requirements for skilled labour and application of appropriate codes, regulations and approvals gaining processes is essential.
Assessment Event number 2 of 5
Instructions for this assessment This is a skill-based assessment and will be assessing you on your ability to demonstrate skills required in the unit.
This assessment is in two parts. The first part is broken into several sub-tasks. For each of these sub-tasks, there is a checklist of statements to show what an assessor will look for in your submitted work. Complete each sub-task, then before you move on to the next one, carefully review your work by reading through the checklist, to make sure you have met all the requirements.
Practical Tasks
Task 1 Preliminary Costs
Task 2 Concrete
Task 3 Bricks
Task 4 Carpentry
Task 5 Correspondence on Wall Frames and Trusses
Task 6 Roof Cladding
Task 7 Overhead and Margin Documentation.
Assessment Feedback
Submission instructions Your assessment submissions should be via the Online Learning System (OLS). Refer to online instructions in the student portal for uploading files.
Feedback will be provided to you from your Teacher upon completion of your assessment tasks. It is important that you keep a copy of all electronic and hardcopy assessments submitted to TAFE and complete the assessment declaration when submitting the assessment.
What do I need to do to achieve a satisfactory result? To successfully complete this assessment, you must complete all sections of this assessment as outlined in the assessment instructions and be marked satisfactory for each task and sub-task by your assessor as indicated in checklists.
What do I need to provide? Computer and online access, calculator, pens and measuring equipment.
What the assessor will provide? The following documents available on the OLS.Mr and Mrs Browns Architectural Plans & Specifications V4004-619(CPCCBC4004A_AE_Kn_1of4_SR1)
Mr and Mrs Brown Specifications-V4004-619(CPCCBC4004A_AE_Sk_2of4_SR4)
Company Costing Spreadsheet Student - V4004-619.xlsx(CPCCBC4004A_AE_Sk_1of4_SR2) Note: This is a blank spreadsheet for you to use for your calculations.
Online learning materials listed further below.
Access to OLS, instructions for uploading of documents, student resources.
http://ols.oten.tafensw.edu.au/ols/core/studenthomeTAFENSW Library Services
https://wsi.tafensw.libguides.com/homeNational Construction Code
https://ncc.abcb.gov.au/Australian Standards
https://www.standards.org.au/standards-catalogue/sa-snz/buildingRB Holdings, simulated Website with industry documentation, e.g. Plans, specification and company profile
https://share.tafensw.edu.au/share/file/72ecc80c-01c4-4dfb-aca3-2acc2f4c5a85/1/RB%20Holdings.zip/RB%20Holdings/index.htmlSpecific information including:
PlansOther Construction DocumentsWhat is estimating
Preliminary estimatesDetailed estimatesBackground to measurementAustralian standard method of measurement of building works (ASMMBW)
The quantity surveyorThe building estimatorComposition of building costsLabour hoursThe measurement processDescribing measured workBasic measurement techniquesFinalising the measurementsMeasurement working exampleComputer estimating software (such as Cordell Estimator)
Contract types associated with the tendering processThe tendering processWorkCover, Environmental Protection Agency (EPA) requirements, waste management and other statutoryAnticipated profitProject costs are calculated for tender or bill.Final Check.
Due date and time allowed Due to the blended delivery mode, you will work to an agreed Individual Learning (Training) Plan (ILP) that is provided to you at enrolment. You will review and confirm acceptance of your ILP. Teacher support is available to students Monday to Friday by phone or email.
Due dates are structured based on your enrolment commencement date, with an automatic prompt for submission date generated throughout your enrolment period via the OLS as outlined in your ILP.
To complete this assessment, you should expect to take no longer than 7 hours to complete all tasks outlined in this document.
Assessment feedback, review or appeals Appeals are addressed in accordance with Every Students Guide to Assessment in TAFE NSW available at https://www.tafensw.edu.au/student-services/rights-responsibilities
Specific task instructions
To complete this task, you are required to submit a price for the contractual obligations of Mr and Mrs Brown's construction project.
You will refer to:
Mr and Mrs Browns Architectural Plans & Specifications V4004-619(CPCCBC4004A_AE_Kn_1of4_SR1)
Company Costing Spreadsheet Student - V4004-619.xlsx(CPCCBC4004A_AE_Sk_1of4_SR2)
Part 1: Practical Tasks
Background
To support the role of the builder in being able to produce construction industry documentation, students have access to a professional intranet that provides a simulated building company, RB Holdings. RB Holdings functions as a simulated workplace environment where project-based assessments can be undertaken using industry standard documentation, plans, activities, responsibilities and procedures. The RB Holdings business structure allows simulation of work environments such as, but not limited to, design offices, site offices and construction sites. RB Holdings provides students with relevant documentation that is to industry standard that allows students to experience a professional simulation of a construction office environment. RB Holdings is a simulated organisation that has been created purely for educational purposes. RB Holdings materials are accessed via a secure website that is copyright of TAFE NSW.
Scenario
RB Holdings has an organisational policy that requires you, as one of its staff members, to produce material and labour estimates no later than 5 working days from receiving the request from your manager. The information calculated must be to the quality standards required by RB Holdings, that is, accurate quantity take-off and calculations in accordance with the Standard Method of Measurements. Calculations, costings and communications must be created in accordance with standard RB Holdings policies and procedures.
Task 1: Preliminary Costs
Task 1.1 Preliminary Calculations
Access the Newcastle City Council Fees and Charges document and apply the 2018/19 fees to the project costs listed below. When retrieving the information from the councils website, consider the two following points:
The project is complying development with an estimated value of $425,000.
The correct aggregated gross area of new works is accessed and applied from the plans.
Place your answers into the Preliminaries Tab on the Company Costing Spreadsheet_AE_V4004-619.xlsx (CPCCBC4004A_AE_Sk_1of4_SR2).
Add the approval fees to be applied to estimates, using the Company Costing Spreadsheet_AE_V4004-619.xlsx (CPCCBC4004A_AE_Sk_1of4_SR2), and enter your answers into the Preliminaries Tab in the spreadsheet:
Complying Development Application
Construction Certificate
Occupation Certificate
Five compulsory inspections (council as Principal Certifying Authority (PCA)).
Apply all the following preliminary predetermined cost (all rates include GST):
Item Quantity Rate/Cost
Site establishment labour 15hours $40/hr
BASIX certificate N/A $420
Site safety management/ supervision 25 hours $80/hr
Environmental Protection establishment 8 hours $80/hour
Waste Management (bins/ waste protection) N/A $2,500
Site fencing purchase 45 panels $85/panel
Site shed rental 15 weeks $180/week
Portaloo hire 26 weeks $45/week
Portaloo pump outs 12 pump outs $75 each
Temporary power install and connect N/A $5,200
Scaffolding rental supply, install and removal job lot for 4 weeks N/A $6,500
(Note These are typical preliminary items and do not represent every projects requirements)
Task 1.1 - Student Checklist
Check you have.
1. Accessed the Newcastle City Council Fees and Charges document and identified the 2018/19 fees.
2. Accessed the plans and applied the correct aggregated gross area of new works.
3. Applied the following preliminary costs to the spreadsheet:
Complying Development application
Construction Certificate
Occupation Certificate
Five compulsory inspections.
4. Applied all the following preliminary predetermined costs.
Site establishment labour
BASIX certificate
Site safety management
Environmental Protection establishment
Waste Management (bins/ waste protection)
Site fencing purchase
Site shed rental
Portaloo hire
Portaloo pump outs
Temporary power install and connect
Scaffolding rental supply, installation and removal.
Task 1.2 - Resource Costings
Identify and complete the schedule in the spreadsheet tab labelled Task 1.2 Costings, for the material, labour and plant costs for the following trades:
Concreter
Bricklaying
Carpentry.
Complete the spreadsheet tab labelled Task 1.2. Costings to include:
Task 1.2a Materials
Note that only selected materials have been chosen for you to price these are not ALL the materials that would be needed under each trade
Task 1.2b Plant
You need to identify plant that is required, and research a price to purchase or hire)
Task 1.2c Labour
You will need to research the award rates for trades that you will hire on a daily or weekly basis, and a wage for a carpenter who you will employ full-time.
Ensure costings are shown and all references are included in the relevant tab in the Company Costing Spreadsheet.
Task 1.2 - Student Checklist
Check you have.
1. Identified and correctly completed the schedule in the spreadsheet tab labelled Task 1.2 Costings, for the material, labour and plant costs for the following trades:
Concreter
Bricklaying
Carpentry.
2. Completed the spreadsheet to include:
Task 1.2a Materials
Task 1.2b Plant
Task 1.2c Labour.
3. Obtained supplier prices for materials and consumables from written information (such as supplier websites, hardcopy catalogues and supplier price lists).
4. Accessed award rates (written information) to obtain labour costs.
5. Included references to names/ link or website.
6. Used the spreadsheet appropriately as a means of recording costs.
Task 2: Concrete
Task 2.1 Concrete quantities
Read the correct plans and specification to calculate the quantities required for the reinforced concrete thickened edge beam and slab, with the following specification:
N25 (25MPa) reinforced concrete poured on ground for floor slab and attached edge beams as per footing layout (Structural Plans & Specifications DWG - S01) and AS 2870/ AS 3600
Quantities inclusive of floor slab and thickened edge beam
Exclusions:
(Refer to highlighted areas on the structural plan below)
Do not include verandah footings and slab
Do not deduct the tile set down area.
Ensure costings are shown and all references are included in the relevant tab in the Company Costing Spreadsheet.
Task 2.1 - Student Checklist
Check you have.
1. Identified the appropriate drawing(s).
2. Read and interpreted the drawings and specifications.
3. Calculated the correct quantities for the edge beam and slab.
And therefore have:
4. Read and understood the plans and specifications.
5. Used and interpreted measurements.
6. Conformed to standard industry practice.
7. Added this material and the quantity to the list of items in the spreadsheet.
8. Determined the quantity against this project and the contract requirements.
9. Estimated the material cost from written information.
10. Gathered information (quantity) that relates to material supply.
Task 2.2 Concrete nett rate
You are required to calculate the nett rates for concrete as per the quantities derived in Task 2.1, with the following specification:
N25 (25MPa) reinforced concrete poured on ground for floor slab and attached edge beams direct from truck/ vibrated/ screed and finished
Basis 10 m3
Materials
1 m3 @ $275m3/ waste to be included 10%
Labour direct employee
place/ vibrate/ screed and finish 1.85hrs per m3
supervision on labour 20%
on cost on labour 80%
Plant
Vibrator For 10m3 basis say 1-day use - $120
All other items inclusive as per trade tools
Nett rate answer to be calculated per cubic metre (m3).
Ensure costings are shown and all references are included in the relevant tab in the Company Costing Spreadsheet.
Task 2.2 - Student Checklist
Check you have.
1. Calculated a correct nett or unit rate (cost) for concrete. 2. Selected and applied appropriate labour rates and material costs.
3. Estimated the labour and materials costs from written information.
4. Shown numeracy skills in these calculations.
5. Utilised software programs such as Cordell Estimator and Microsoft Excel to find the required information and record the calculations.
6. Identified the type and usage of labour as a direct employee.
7. Interpreted measurements in calculating the quantities and costs.
Task 3: Bricks
Task 3.1 Brickwork Quantities
Read the correct plans and specification to calculate the quantities required for the face brickwork, with the following specification:
230 x 110mm selected face (average) bricks veneer to AS3700/4773
Laid in stretcher bond/ 1:4 cement/ sand/ flush joint
All deductions to be included (meter box deduction not required)
Allow 50 bricks per metre square (excludes waste)
Sills laid in 1:4 mortar pointed on top and edge.
(Note: Ancillary installations such as wall ties and DPC are inclusive in the rates).
Ensure costings are shown and all references are included in the relevant tab in the Company Costing Spreadsheet.
Task 3.1 - Student Checklist
Check you have.
Calculated accurate quantities required for the face brickwork.Identified the appropriate drawing(s).
Read and interpreted the drawings and specifications.
Calculated the correct quantities for the brickwork.
And therefore have:
Read and understood the plans and specifications.
Used and interpreted measurements.
Conformed to standard industry practice.
Added this material and the quantity to the list of items in the spreadsheet.
Determined the quantity against this project and the contract requirements.
Estimated the material cost from written information.
Gathered information (quantity) that relates to material supply.
12. Utilised software programs such as Cordell Estimator and Microsoft Excel to find the required information and record the calculations.
Task 3.2 Brickwork nett rate
Calculate the nett rates for face brickwork and sills as per the quantities derived in Task 3.1, with the following specification:
3.2a Face bricks
230mm selected face (average) bricks, laid in stretcher bond, 1:4 cement mortar, raked joint
Basis 20m2 or 1000 bricks
Materials:
Average face bricks $1454.00 per 1000/ waste to be included 5%
Cement $8 per bag
Sand 0.8 tonne per 1000 bricks/ $85.10 per tonne
Waste on mortar 20%
Labour - Sub-contract
Bricklayer 1hr/ m2 @$50.00/ hr
Labourer assist 0.35hr/ m2 @ $40.00/ hr
Raking joint 0.35hr/ m2 @ $50.00 hr
Plant
Scaffold included in Preliminaries
All other plant inclusive in rates
Nett rate answer to be calculated per brick.
3.2b Sills
230mm selected (average) bricks laid on edge, laid in 1:4 mortar, pointed top and edge
Basis 20m or 240 bricks
Materials
Average face - $0.81 per brick/ waste to be included 5%
Cement $8 per bag/ 4 bags per 1000
Sand 0.8 tonne per 1000 bricks/ $85.10 per tonne
Waste on mortar 20%.
Labour sub-contract
Bricklayer 1.0hr/ metre @$50 hr
Labourer to assist 0.35hr/ m @$40 hr.
Plant
Not required all-inclusive.
Nett rate answer to be calculated per metre.
Ensure costings are shown and all references are included in the relevant tab in the Company Costing Spreadsheet.
Task 3.2 - Student Checklist
Check you have.
Calculated correct nett rates for face brickwork and sills using the quantities derived in Task 3.1, and the specification.Selected and applied appropriate labour rates and material costs.
Estimated the labour and materials costs from written information.
Shown numeracy skills in these calculations.
Utilised software programs such as Cordell Estimator and Microsoft Excel to find the required information and record the calculations.
Identified the type and usage of labour as a subcontractor.
Interpreted measurements in calculating the quantities and costs.
Task 4: Carpentry
Task 4.1 Carpentry (Fix out) quantities
Read the correct plans and specification to calculate the quantities required for the fix out carpenter, with the following specification:
External doors (average) include double rebated jamb, hinges, lock and deadlock, fitted and finished (BAL as per specification not to be considered). Measure as per all doors are similar
Internal doors (exclude cavity sliders and robe sliders)
67 x 19 pencil round architrave
garage area and door/ cavity sliders not required
67 x 19 pencil round skirting
laundry/ bath/ ensuite/ kitchen and garage not required
Deduction for internal doors is not required.
Ensure costings are shown and all references are included in the relevant tab in the Company Costing Spreadsheet.
Task 4.1 - Student Checklist
Check you have.
Calculated the quantities required for the fix out carpenter.Identified the appropriate drawing(s).
Shown you have read and interpreted the drawings and specifications.
Calculated the correct quantities for the carpentry fix out.
And therefore has:
Read and understood the plans and specifications.
Used and interpreted measurements.
Conformed to standard industry practice.
Added this material and the quantity to the list of items in the spreadsheet.
Determined the quantity against this project and the contract requirements.
Estimated the material cost from written information.
Gathered information (quantity) that relates to material supply.
Task 4.2 Carpentry nett rate
Calculate the nett rates for fix out carpentry, as per measurement Task 4.1, with the following specification:
4.2a External door nett rate.
Basis per door.
Materials Labour (Carpenter @ $55/hour)
Item Cost Task Time
External selected door (average allowance) $92.00/ door cut and fix double rebated jamb to timber frame
1 hour
Meranti double rebated jamb $63.00 per set fit solid core door to rebated jamb 1 hour
100mm stainless steel hinges (3 per door) $11.10/ hinge install locks 0.5 hours
25mm screws 8-gauge s/s 8 per hinge $0.42/ screw Lockset Gainsborough tri lock $194.00/ lock Note: Supervision not required. Plant not required.
4.2b Internal door nett rate.
Basis per door.
Materials Labour (Carpenter @ $55/hour)
Item Cost Task Time
Internal (flush panel) hollow core door allowance $28.00 cut and fit jamb 1 hour to timber frame
1 hour
Single rebated jamb. Meranti (1 set) $36.00 fit hollow core door jamb 0.75 hours
75mm butt hinges $5.90 fit passage/ privacy set 0.3 hours
25mm 8-gauge screws (6 per hinge) $0.42/ hinge Passage/ privacy set $35.00/ set Note: Supervision not required. Plant not required.
Ensure costings are shown and all references are included in the relevant tab in the Company Costing Spreadsheet.
4.2c Architrave
Basis 100m
Materials Labour (Carpenter @ $55/hour)
Item Cost Task Time
67x19 pine pencil round (Waste 10%) $1.85/m cut and fix architrave 8 hours/ 100m
Nails allow 1box $125.00 Glue allow 1 box $87.00 Note: (1) supervision - not required
(2) plant - not required.
4.2d Skirting
Basis 100m
Materials Labour (Carpenter @ $55/hour)
Item Cost Task Time
92x19 pine pencil round (Waste 10%) $2.42/m cut and fix architrave 11 hours/ 100m
Nails allow 1box $125.00 Glue allow 1 box $87.00. Note: (1) the client has requested 92x19 instead in lieu of 67x19 as per scope
(2) supervision - not required
(3) plant - not required.
Ensure costings are shown and all references are included in the relevant tab in the Company Costing Spreadsheet.
Task 4.2 - Student Checklist
Check you have.
Calculated correct nett rates for fix out carpentry, using the quantities derived in Task 4.1, and the specification.Selected and applied appropriate labour rates and material costs.
Estimated the labour and materials costs from written information.
Shown numeracy skills in these calculations.
Utilised software programs such as Cordell Estimator and Microsoft Excel to find the required information and record the calculations.
Identified the type and usage of labour as a subcontractor.
Interpreted measurements in calculating the quantities and costs.
Task 5: Wall Frames and Trusses correspondence
Task 5.1 Wall frames and trusses - correspondence with supplier
On a separate A4 word document write a professional letter of communication for the supply and installation of wall frames and trusses as per Mr and Mrs Brown project:
Address letter to Andre Kreski, Director, Top Truss and Walls Supplier. Confirm the verbal price given for supply and installation of the frames and trusses to Mr and Mrs Browns residence.
Include:
Reference to the verbal confirmation in phone conversation for supply and installation of frames and trusses to Mr and Mrs Browns Project - $22,550.00. This is to be documented within the letter.
Ensure information is detailed on company letterhead with director name/ contact details and estimated labour and materials cost received via phone conversation.
Ensure the letter is appropriate for all cultural differences, is courteous and professional, and uses plain English.
Include the final price from the letter into the summary sheet of the spreadsheet.
Task 5.1 - Student Checklist
Check you have.
1. Completed a letter of communication to Director - Andre Kreski of Top Truss and Walls Supplier to gather information on the supply and installation of wall frames and trusses.2. Carried out the following:
Confirmed the phone conversation for supply and installation of frames and trusses to Mr and Mrs Brown Project
Composed the letter on company letterhead with director name/ contact details
Ensured the letter is appropriate for cultural differences (courteously and using plain English)
Communicated effectively by using language appropriate to the professional environment.
Task 5.2 Wall frames and trusses - negotiation with supplier
Describe how you would respond to receiving a response from the Frame and Truss Company that indicated they were no longer offering the verbally agreed to price.
What questions you would ask and what further follow up action could you take to resolve this problem? You are required to demonstrate your problem solving and negotiating skills in your response.
Your response should be 100 150 words.
Record your responses in the tab labelled Task 5.1 and 5.2 in your spreadsheet.
Task 5.2 - Student Checklist
Check you have.
Described an acceptable response to the unexpected change of price by remaining professional and courteous.
Used problem solving skills by demonstrating reasonable negotiation using questions and alternative scenarios to the supplier.
Task 6: Roof Cladding:
Task 6.1 Ridge and verge tile calculations
Calculate the roof area, ridge, and verge capping lengths for the Mr and Mrs Browns project. Consider the following items below to complete this task:
Detailed calculations to be entered on the P10 form in the Task 6.1 Roof Cladding tab of their spreadsheet
Your total roof area must be +/- 10% within the figure specified in the schedule of areas shown on the project plans.
Task 6.1 - Student Checklist
Check you have.
Calculated the roof area, ridge, and verge capping lengths for the Mr and Mrs Brown project within an acceptable range of accuracy. Completed detailed calculations on the P10 form in the Task 6.1 Roof Cladding tab of their spreadsheet.
Calculated the total roof area to be within +/- 10% of the figure specified in the schedule of areas shown on the project plans.
Calculated the ridge and verge lengths to be within +/- 5% of the lengths shown in the marking guide.
Identified the appropriate drawing(s).
Read and interpreted the drawings and specifications.
Calculated the correct quantities for roof cladding.
And therefore have:
Read and understood the plans and specifications.
Used and interpreted measurements.
Conformed to standard industry practice.
Added this material and the quantity to the list of items in the spreadsheet.
Determined the quantity against this project and the contract requirements.
Correctly estimated the material cost from written information.
Gathered information (quantity) that relates to material supply.
Demonstrated numeracy skills to calculate material quantities and costs.
Task 6.2 Nett rate calculation for roof cladding
Complete a nett rate (exclusive of overheads and profit) for the supply and installation of roof tiles and associated capping as per the plans and specifications for the Mr and Mrs Brown project.
To complete this task you are required to conduct your own research and source the material costs, labour rates and plant requirement costs. You are to ensure you keep notes of your sources and include these in your response
Consider this estimate as a tendered subcontract price as per the scope of works listed below:
Supply and fix anti-ponding boards to eave perimeters
Supply and fix select colour concrete square edged roof tile including sarking on 38 x 38 pine battens, fixed in position, not exceeding a 300 roof pitch and not exceeding 3.5 metres height above ground level at eaves
Supply and install all capping and verge tiles. Bed and point as required
Include all plant and equipment to comply with all WHS requirements
Remove all waste and clean up on completion.
To assist you in completing this task you are to consider the notes below:
A building cost guide can be used or prices can be sourced from an external source such as a roofing contractor
All costs and rates will exclude GST
Assume valley iron, fascia gutter already fixed in place
All labour will be based on subcontract rates and to be included in tendered price
Provide an itemised listing of rates for each item listed in the scope of works above
You are to use the nett rate form in the Task 6.2 Roofing Tender Tab of your spreadsheet
Final tendered subcontract price to be entered in the summary tab of your spreadsheet.
Ensure costings are shown and all references are included in the relevant tab in the Company Costing Spreadsheet.
Task 6.2 - Student Checklist
Check you have.
Completed a nett rate for the supply and installation of roof tiles and associated capping as per the plans and specifications. Conducted your own research and sourced the material costs, labour rates and plant requirement costs.
Kept notes of your sources
Based your research on the scope of works.
Correctly shown the roof rail (edge protection) as a minimum plant requirement.
Selected and applied appropriate labour rates and material costs.
Correctly estimated the labour and materials costs from written information.
Shown numeracy skills in these calculations.
Utilised software programs such as Cordell Estimator and Microsoft Excel to find the required information and record the calculations.
Interpreted measurements in calculating the quantities and costs
Task 7: Overhead and Margin documentation
Once you have completed the calculations for the estimated project costs, complete the Summary Sheet for inclusion for the tender bill using the following information provided:
Total Preliminaries / Concrete / Brickwork and Fix out Carpenter
Total Wall frame / truss price added
Profit 15%
Overhead - 10%
GST to be added where applicable
Total price to be documented at the end of the summary sheet.
You are to note that this is not the total price to construct this dwelling. Other predetermined trade costs have been included in the Summary Tab of your spreadsheet to provide a reasonably realistic final price for this project.
Task 7 - Student Checklist
Check you have.
1. Completed the Task 7 Summary Sheet tab in the spreadsheet by applying the following information:
Preliminaries
Concrete, brickwork and carpenter (derived from labour rates and material costs)
Wall frame / truss price
Profit 15%
Overhead - 10%
GST, where applicable
Total price
2. Successfully used this spreadsheet as a software program for costing.
3. Completed the estimate of the total project cost for inclusion in a tender.
Note: To ensure your success in completing the tasks in Part 1, you are required to complete and submit your copy of the Company Costing Spreadsheet with ALL tabs filled in, including the separate A4 letter of communication.
Part 2: Assessment Feedback
NOTE: This section must have the assessor signature and student signature to complete the feedback.
Assessment outcome
Satisfactory
Unsatisfactory
Assessor Feedback
Was the assessment event successfully completed?
If no, was the resubmission/re-assessment successfully completed?
Was reasonable adjustment in place for this assessment event?If yes, ensure it is detailed on the assessment document.
Comments:
Assessor name, signature and date:
Student acknowledgement of assessment outcome
Would you like to make any comments about this assessment?
Student name, signature and date
NOTE: Make sure you save a copy of your submission before attaching the cover sheet and submitting to the OLS for marking.
