1. Lesson 2

2.  Estimating Techniques ◦ Internal finishes

3.  Basic formula for cost ◦ Quantity x Unit Rate = Cost  Unit rate ◦ What is this built up from

4.  Plant ◦ What equipment is needed  Labour ◦ What type of labour  Material ◦ What material and quantities  Time ◦ Staged work, accelerated programmes  Margin ◦ Overheads, profit

5.  Resources ◦ Cost databases ◦ Build up from first principles

6.  C= Cost of materials  C= Cartage allowance  W= Wastage  F=Fixings  (e)= Minor equipment  L=Labour

7.  Cost of materials ◦ Market in New Zealand ◦ Who are the main players

8.  Retail cost ◦ Resources  Main suppliers  Builders merchants  Specialist suppliers/subcontractors ◦ Suppliers Discounts  Bulk buying  Certain projects  Payment terms and conditions/rebates

9.  Cost of materials ◦ Understanding the specification and knowing your product. ◦ Alternative products

10.  Plasterboard (4 types of board and gib nails)  Metal studs and fixings ( 2 types)  Metal ceiling batten clips (3 types)  Suspended ceilings tiles (4 types)  Suspended ceiling grid (nog and perimeter trim)

11.  Cartage ◦ Often included in suppliers rates ◦ Bulk deliveries/small deliveries ◦ Distance – local/rural ◦ Access onto site ◦ Additional labour required for loading

12.  Wastage ◦ How much wastage do you think? ◦ Modular room sizes ◦ Standard sizes for board ◦ Standard lengths for steel stud/timber ◦ Screws / glues

13.  Fixings ◦ What type of fixings  Carpentry nails allow kg/m2  Quantify and price – acoustic clips

14.  Equipment ◦ Minor equipment such as nail guns are already part of the labour cost ◦ Any specialist equipment is priced separately

15.  Labour ◦ What type of skill set is required ? ◦ What is the gang size/site supervision ? ◦ Location and complexity of the project/Out of hours working ◦ The market rates – now or in the future

16.  Plasterboard Walls 13mm Standard plasterboard fixed to timber, stopped to level 4 m2  Materials  Cost of sheet of plasterboard / area of board (m2)  Cost of delivery (quantity/amount of deliveries)  $21.60 /(1.2 x 2.4) + $1.00 = $8.50/m2

17.  Wastage  What will affect the wastage?  Check stud heights  Check access/small rooms  Typical 10% allowed  Material cost x 10%  $8.50 x10% = $9.35/m2

18.  Labour ◦ Fixing plasterboard  On the wall  On the stack ◦ Stopping  Fix + stop  ($5.00/m2 x 10%) + $6.00 = $11.50/m2

19.  Total unit price for 13mm plasterboard, fixed to timber, stopped to level 4 (m2)  Materials + labour  =$9.85+$11.50  =$21.35/m2

20.  Labour items  External angles (m) ◦ Materials + labour ◦ Slimline + (fix and stop slimline) ◦ $1.50/m + ($1.00 + $6.00)/m ◦ Total = $9.00/m

21.  Walls - 13mm Aqualine, fixed to timber, stopped to level 4 (m2)  Ceilings – 10mm Standard above 3.0m, fixed to metal battens, stopped to level 4 (m2)  Walls – 2 layers of 16mm fryeline, fixed to timber, stopped to level 3(m2)  Fire sealant (m)

22.  Square stopping (m)  75mm Classic coving (m)  Walls -1 layer 10mm Noiseline, 1 layer 13mm Noiseline both sides, fixed to steel, stopped to level 4 (m2)  Sound sealant (m)  Bulkhead – 13mm Standard, fixed to timber, stopped to level 4 – 300mm wide (m)