Residential · R09

Roof Replacement Cost Estimate — 120 m² roof

120 m² roof 29 work items 5 sections Toronto, Canada

About This Project

Complete roof replacement estimate for 150 m² of roof area. Covers removal of existing roofing material, inspection and repair of roof deck/sheathing, installation of underlayment and ice-water shield, new asphalt shingles or metal roofing, ridge vents, flashing at penetrations, fascia and soffit repair, and gutter replacement.

Scope of Works

Strip Existing Roof (8)Repair & Prepare (3)Insulation (3)New Roof Covering (9)Rainwater & Finishing (6)

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Overview

iKey project metrics at a glance — total cost per m², labor and material shares, and estimated duration
Source: Text Query
C$1,419.78
Cost / m²
32.1%
Labor
29.1%
Materials
206 days
Est. Duration

Work Items

18 items iAdjust quantities or remove items, then recalculate. Click item name to jump to details.
Excavation of soil into a dump using excavators, bucket capacity ME.NE (ME.RISA-18m3C$35.48
Construction of reinforced concrete foundations for general use under columns wi9.6m3C$4,313.36
Construction of reinforced concrete columns in wooden formwork with a height of:4.8m3C$3,904.79
Construction of reinforced concrete floors and slabs up to 200 mm thick in perma7.2m3C$6,411.08
Masonry of external and internal brick walls with an air gap: with a floor heigh22.8m3C$16,345.83
Installation of partitions made of gypsum tongue-and-groove slabs: for floor hei96m2C$15,620.87
Installation of flat roofs from roll roofing waterproofing self-adhesive materia42m2C$737.86
Installation of PVC profile window blocks in residential and public buildings: d18m2C$7,345.29
Filling balcony openings in wooden log walls with caulking door blocks with door3.6m2C$2,204.78
Installation of two-color cement mortar coatings made of ceramic tiles: stair la102m2C$15,105.21
Installation of a load-bearing suspended ceiling for clean rooms, with panel dim90m2C$12,052.06
Continuous leveling of interior surfaces (single-layer plastering) with dry mort192m2C$9,772.28
Improved oil painting of previously painted walls: for two coats with removal of192m2C$5,592.54
Electrical wiring in chambers: cable or wire with band fasteners360mC$1,928.60
Laying water supply pipelines using multilayer metal-polymer pipes with a diamet72mC$3,334.47
Installation of air ducts made of galvanized sheet steel and class P aluminum (d120m2C$8,796.70
Repair of plaster on external straight slopes on stone and concrete with decorat60m2C$55,674.81
Installation of hybrid lawn on hills: with sowing of new turf12m2C$1,197.99

Project Context

iInput parameters, location adjustment factors, and detection confidence for this estimate
Source
Office
120 m² · 18 items
SourceText Query
Work Items18 items · 17 Categories
CurrencyC$ CAD
LanguageEnglish
Date05 Apr 2026
Roof Replacement 120 m² roof Toronto Canada
Cost / m²
C$1,419.78
120 m²
Est. Duration
7 months
206 days
Overhead
15%
C$20,202.47
Direct Costs
79%
C$134,682.98
Location
Toronto, Canada
Americas
×1.07
Estimate Overview
C$170,373.99
C$1,419.78 / m² · 7 months (206 days)
Labor 32% Materials 29% Equipment 18% Overhead 12% Profit 9%
Contingency (P80)
+8%
C$14,311.42
Budget (P80)
C$184,685.41
recommended
Resources
77
49 mat · 10 lab · 18 equ
Overhead + Profit
12% + 9%
C$35,691.01
Pricing Methodology
Data Source: DDC Pricing DB — English · 55,719 items · CWICR
City Adjustment
🏛 Toronto, Canada
Your city matches the base — coefficients ×1.00
PPP Coefficients
Labor Factor
×
click to adjust
Material Factor
×
click to adjust
Equipment Factor
×
click to adjust
Prices from a professional construction database (55,719 items), adjusted to your city using construction-specific Purchasing Power Parity (PPP). Coefficients can be manually adjusted.
Detection Confidence
50%

Cost Breakdown

iHow the total cost is distributed: labor, materials, equipment, overhead, and profit margins
C$134,682.98Direct Cost
Labor (32%)C$54,628.43
Materials (29%)C$49,586.88
Equipment (18%)C$30,467.67
Overhead (12%)C$20,202.47
Profit (9%)C$15,488.54
Cost / m²
LaborC$455.24
MaterialsC$413.22
EquipmentC$253.90
OverheadC$168.35
ProfitC$129.07
Grand TotalC$1,419.78
Materials / Labor
0.91
Direct Cost %
79.1%
18 work items across 17 categories, 77 resources

Cost Flow

17iVisual flow of the total budget through work categories, showing proportional cost distribution
Total CostC$170,373.99HVAC: C$8,796.70 (5.2%)Doors: C$2,204.78 (1.3%)Facade: C$55,674.81 (32.7%)Ceiling: C$12,052.06 (7.1%)Roofing: C$737.86 (0.4%)Windows: C$7,345.29 (4.3%)Flooring: C$15,105.21 (8.9%)Painting: C$5,592.54 (3.3%)Plumbing: C$3,334.47 (2.0%)Earthwork: C$35.48 (0.0%)Structure: C$10,315.87 (6.1%)Electrical: C$1,928.60 (1.1%)Foundation: C$4,313.36 (2.5%)Plastering: C$9,772.28 (5.7%)Landscaping: C$1,197.99 (0.7%)External Walls: C$16,345.83 (9.6%)Internal Walls: C$15,620.87 (9.2%)HVAC5.2%Doors1.3%Facade32.7%Ceiling7.1%Roofing0.4%Windows4.3%Flooring8.9%Painting3.3%Plumbing2.0%Earthwork0.0%Structure6.1%Electrical1.1%Foundation2.5%Plastering5.7%Landscaping0.7%External Walls9.6%Internal Walls9.2%
  • Building type not detected; using 'office' template. Use --type to specify.

Categories

17iCost distribution by work category — earthwork, structure, facade, MEP, finishes, etc.
CategoryCostCost / m²Share
HVACC$8,796.70C$73.315.2%
DoorsC$2,204.78C$18.371.3%
FacadeC$55,674.81C$463.9632.7%
CeilingC$12,052.06C$100.437.1%
RoofingC$737.86C$6.150.4%
WindowsC$7,345.29C$61.214.3%
FlooringC$15,105.21C$125.888.9%
PaintingC$5,592.54C$46.603.3%
PlumbingC$3,334.47C$27.792.0%
EarthworkC$35.48C$0.300.0%
StructureC$10,315.87C$85.976.1%
ElectricalC$1,928.60C$16.071.1%
FoundationC$4,313.36C$35.942.5%
PlasteringC$9,772.28C$81.445.7%
LandscapingC$1,197.99C$9.980.7%
External WallsC$16,345.83C$136.229.6%
Internal WallsC$15,620.87C$130.179.2%

Top Items

DescriptionTotal
Repair of plaster on external straight slopes on stone …C$55,674.81
Masonry of external and internal brick walls with an ai…C$16,345.83
Installation of partitions made of gypsum tongue-and-gr…C$15,620.87
Installation of two-color cement mortar coatings made o…C$15,105.21
Installation of a load-bearing suspended ceiling for cl…C$12,052.06

What-If Scenarios

iExplore how changes in material, labor, or equipment costs affect the total project budget
Optimistic (-10%)
C$153,336.59
↓ C$17,037.40 savings
Labor -10% · Materials -10% · Equipment -10%
Base Estimate
C$170,373.99
Deterministic
Labor ×1.00 · Materials ×1.00 · Equipment ×1.00
Pessimistic (+15%)
C$195,930.09
↑ C$25,556.10 increase
Labor +15% · Materials +15% · Equipment +15%
Custom Scenario: Adjust cost components
Labor 0%
Materials 0%
Equipment 0%
Custom Scenario Total Cost
C$170,373.99

Project Schedule

≈7 monthsiProject timeline with critical path method (CPM), Gantt chart, and resource allocation
Construction PhasesAI
Site PreparationSite clearing, temporary facilities setup, utilities connection20d
EarthworkExcavation, grading, soil compaction, utility trenching8d
Foundation WorkConcrete footings, foundation walls, basement slab, waterproofing8d
Structural FrameworkSteel frame erection, concrete floors, structural connections23d
Roofing SystemRoof deck, membrane, insulation, drainage systems8d
External EnvelopeExterior walls, facade systems, building envelope sealing40d
Windows and External DoorsWindow installation, external door systems, glazing8d
MEP Rough-inElectrical conduits, plumbing rough-in, HVAC ductwork installation18d
Internal Walls FramingInterior partition framing, door frames, wall preparation8d
InsulationThermal and acoustic insulation, vapor barriers8d
Drywall and PlasteringDrywall installation, plastering, wall finishing preparation8d
Ceiling SystemsSuspended ceilings, ceiling tiles, lighting fixtures preparation9d
MEP Finish WorkElectrical fixtures, plumbing fixtures, HVAC units and controls8d
Interior DoorsInterior door installation, hardware, access control systems8d
Flooring InstallationCarpet, tile, hardwood, and other finish flooring systems27d
Painting and Final FinishesInterior painting, final wall finishes, trim work15d
Final Systems and TestingSystem commissioning, testing, safety systems, elevators8d
Landscaping and Site WorkExterior landscaping, parking areas, site cleanup8d
Final Inspection and HandoverFinal inspections, punch list completion, project handover8d
7
months
206
days
19
phases
15
Critical Path
8
Peak workers
2,162
Labor Hours
M1 M2 M3 M4 M5 M6 M7 Crew/Float Site Preparation Site Preparation: 20d, Crew 2, Float 0d 20d 2 / - Earthwork Earthwork: 8d, Crew 2, Float 0d 2 / - Foundation Work Foundation Work: 8d, Crew 2, Float 0d 2 / - Structural Framework Structural Framework: 23d, Crew 2, Float 0d 23d 2 / - Roofing System Roofing System: 8d, Crew 2, Float 139d 2 / 139d External Envelope External Envelope: 40d, Crew 4, Float 0d 40d 4 / - Windows and External … Windows and External Doors: 8d, Crew 2, Float 0d 2 / - MEP Rough-in MEP Rough-in: 18d, Crew 2, Float 48d 18d 2 / 48d Internal Walls Framing Internal Walls Framing: 8d, Crew 2, Float 0d 2 / - Insulation Insulation: 8d, Crew 2, Float 0d 2 / - Drywall and Plastering Drywall and Plastering: 8d, Crew 2, Float 0d 2 / - Ceiling Systems Ceiling Systems: 9d, Crew 2, Float 0d 2 / - MEP Finish Work MEP Finish Work: 8d, Crew 2, Float 0d 2 / - Interior Doors Interior Doors: 8d, Crew 2, Float 9d 2 / 9d Flooring Installation Flooring Installation: 27d, Crew 2, Float 0d 27d 2 / - Painting and Final Fi… Painting and Final Finishes: 15d, Crew 2, Float 0d 15d 2 / - Final Systems and Tes… Final Systems and Testing: 8d, Crew 2, Float 0d 2 / - Landscaping and Site … Landscaping and Site Work: 8d, Crew 2, Float 91d 2 / 91d Final Inspection and … Final Inspection and Handover: 8d, Crew 2, Float 0d 2 / - Workers 170K 50% (76d)
Site PreparationEarthworkFoundation WorkStructural FrameworkRoofing SystemExternal EnvelopeWindows and External DoorsMEP Rough-inInternal Walls FramingInsulationDrywall and PlasteringCeiling SystemsMEP Finish WorkInterior DoorsFlooring InstallationPainting and Final FinishesFinal Systems and TestingLandscaping and Site WorkFinal Inspection and HandoverCumulative Cost
Labor Hours by Phase
External Envelope
861 hours
Flooring Installatio
286 hours
Structural Framework
234 hours
Site Preparation
202 hours
MEP Rough-in
191 hours
Painting and Final F
146 hours
Ceiling Systems
95 hours
Drywall and Plasteri
71 hours
Internal Walls Frami
50 hours
Insulation
50 hours
MEP Finish Work
50 hours
Final Systems and Te
50 hours
Final Inspection and
50 hours
Windows and External
31 hours
Foundation Work
24 hours
Interior Doors
11 hours
Landscaping and Site
6 hours
Roofing System
4 hours
Earthwork
0 hours

Monthly Cash Flow

7 monthsiMonthly cost distribution and cumulative S-curve showing how project spending builds over time
10%
M1
33%
M2
61%
M3
74%
M4
89%
M5
98%
M6
100%
M7
MonthdaysMonthly Cost%Cumulative%
M11–30C$16,734.699.8%C$16,734.6910%
M231–60C$39,972.9023.5%C$56,707.5933%
M361–90C$47,869.4228.1%C$104,577.0261%
M491–120C$21,070.1112.4%C$125,647.1374%
M5121–150C$25,148.0214.8%C$150,795.1589%
M6151–180C$15,850.499.3%C$166,645.6498%
M7181–206C$3,728.362.2%C$170,374.00100%

Daily Cash Flow

28 weeks
0%
D1
9%
D19
12%
D37
27%
D55
47%
D73
62%
D91
74%
D109
77%
D127
88%
D145
93%
D163
98%
D181
100%
D190
WeekdaysWeekly Cost%Cumulative%
W1D1–D7C$5,467.303.2%C$5,467.303%
W2D8–D14C$5,467.303.2%C$10,934.616%
W3D15–D21C$4,690.702.8%C$15,625.309%
W4D22–D28C$31.040.0%C$15,656.359%
W5D29–D35C$3,774.192.2%C$19,430.5411%
W6D36–D42C$7,494.404.4%C$26,924.9416%
W7D43–D49C$8,114.434.8%C$35,039.3721%
W8D50–D56C$13,582.128.0%C$48,621.4929%
W9D57–D63C$14,881.718.7%C$63,503.2037%
W10D64–D70C$13,236.427.8%C$76,739.6145%
W11D71–D77C$9,743.095.7%C$86,482.7051%
W12D78–D84C$9,743.095.7%C$96,225.8056%
W13D85–D91C$9,743.095.7%C$105,968.8962%
W14D92–D98C$9,743.095.7%C$115,711.9868%
W15D99–D105C$7,799.334.6%C$123,511.3172%
W16D106–D112C$2,135.821.3%C$125,647.1374%
W17D113–D119C$0.000.0%C$125,647.1374%
W18D120–D126C$3,664.612.2%C$129,311.7476%
W19D127–D133C$9,337.115.5%C$138,648.8481%
W20D134–D140C$11,027.416.5%C$149,676.2588%
W21D141–D147C$0.000.0%C$149,676.2588%
W22D148–D154C$3,356.712.0%C$153,032.9690%
W23D155–D161C$3,916.172.3%C$156,949.1392%
W24D162–D168C$3,916.172.3%C$160,865.2994%
W25D169–D175C$3,916.172.3%C$164,781.4697%
W26D176–D182C$2,609.851.5%C$167,391.3198%
W27D183–D189C$2,609.851.5%C$170,001.16100%
W28D190–D190C$372.840.2%C$170,374.00100%

Line Items

18 itemsiDetailed work items grouped by category with quantities, unit prices, and resource breakdown
▼Earthwork 1 items C$35.48
#CodeDescriptionQtyUnitUnit PriceTotal
1KAME_KAME_KAMEKA_MEKACON
Excavation of soil into a dump using excavators, bucket capacity ME.NE (ME.RISA-ME.NE) m3, soil group: 4
18.0
120 m² × 0.15 = 18 m3(Earthwork)
m3C$1.56C$35.48
C$28.05 +15% C$4.21 +10% C$3.23
Labor Materials Equipment
TypeResourceQtyUnitUnit PriceCost
Worker Category 10.13hrsC$12.18C$1.56
Single-bucket diesel excavators on crawler tracks, bucket capacity ME.NE m30.27Machine hoursC$88.02C$23.45
Personnel: 1 person-hour/machine-hour0.27Machine hoursC$11.40C$3.04
▼Foundation 1 items C$4,313.36
#CodeDescriptionQtyUnitUnit PriceTotal
2KANE_KAME_KAKAME_KAVO
Construction of reinforced concrete foundations for general use under columns with a volume of: up to 25 m3
9.6
120 m² × 0.08 = 9.6 m3(Foundation)
m3C$355.18C$4,313.36
C$3,409.77 +15% C$511.47 +10% C$392.12
Labor Materials Equipment
TypeResourceQtyUnitUnit PriceCost
Average workload TO.KA22.56hrsC$22.53C$508.18
Water0.02m3C$210.43C$3.24
Electricity0.10kWhC$34.46C$3.24
Polyethylene film, thickness KA.MESA mm5.15m2C$70.75C$363.83
Construction nails0.00tC$426,930.22C$410.26
Quicklime, grade I0.00tC$40,820.60C$38.87
Hot-rolled wire in coils, diameter NE.TO-NE.SA mm0.00tC$295,133.54C$282.86
Edged softwood boards, natural moisture content, length RI-NE.SA m, width 100-250 mm, thickness 44-50 mm, grade III0.03m3C$67,477.44C$1,684.21
Tower cranes, lifting capacity 8 t1.79Machine hoursC$41.84C$75.03
Personnel: 1 person-hour/machine-hour1.79Machine hoursC$18.08C$32.42
Mobile cranes, lifting capacity 16 t0.03Machine hoursC$66.65C$2.31
Personnel: 1 person-hour/machine-hour0.03Machine hoursC$18.08C$0.63
Universal front-end pneumatic wheeled single-bucket loaders, nominal capacity of main bucket RI.NE m3, load capacity 5 t0.02Machine hoursC$69.16C$1.66
Personnel: 1 person-hour/machine-hour0.02Machine hoursC$15.47C$0.37
Deep vibrators1.13Machine hoursC$0.55C$0.62
Flatbed trucks, load capacity up to 5 tons0.05Machine hoursC$25.88C$1.35
Personnel: 1 person-hour/machine-hour0.05Machine hoursC$13.46C$0.70
▼Structure 2 items C$10,315.87
#CodeDescriptionQtyUnitUnit PriceTotal
3KANE_KASA_KAKAME_KASA
Construction of reinforced concrete columns in wooden formwork with a height of: up to 4 m, perimeter up to 3 m
4.8
120 m² × 0.04 = 4.8 m3(Structure)
m3C$643.08C$3,904.79
C$3,086.79 +15% C$463.02 +10% C$354.98
Labor Materials Equipment
TypeResourceQtyUnitUnit PriceCost
Worker Category 134.66hrsC$22.75C$788.46
Water0.01m3C$47.45C$0.49
Welding electrodes for welding low-alloy and carbon steels UONI 13/45, E42A, diameter 4-5 mm7.20kgC$159.93C$1,151.44
Construction nails0.00tC$96,264.12C$92.50
Quicklime, grade I0.00tC$9,204.22C$26.53
Edged softwood beams (spruce, pine), natural moisture content, length RI-NE.SA m, width 20-90 mm, thickness 20-90 mm, grade II0.01m3C$18,399.85C$123.66
Unedged softwood board, natural moisture content, length RI-NE.SA m, width 100-250, thickness 30-50 mm, grade II0.05m3C$11,680.85C$616.86
Tower cranes, lifting capacity 8 t4.37Machine hoursC$42.61C$186.21
Personnel: 1 person-hour/machine-hour4.37Machine hoursC$17.82C$77.85
Mobile cranes, lifting capacity 16 t0.09Machine hoursC$67.88C$6.22
Personnel: 1 person-hour/machine-hour0.09Machine hoursC$17.82C$1.63
Universal front-end pneumatic wheeled single-bucket loaders, nominal capacity of main bucket RI.NE m3, load capacity 5 t0.01Machine hoursC$70.44C$0.84
Personnel: 1 person-hour/machine-hour0.01Machine hoursC$15.25C$0.18
Deep vibrators1.89Machine hoursC$0.56C$1.06
Flatbed trucks, load capacity up to 5 tons0.14Machine hoursC$26.36C$3.62
Personnel: 1 person-hour/machine-hour0.14Machine hoursC$13.26C$1.82
Welding machines for manual arc welding, welding current up to 350 A5.04Machine hoursC$1.47C$7.39
4KANE_MEDX_KAKAPU_KAME
Construction of reinforced concrete floors and slabs up to 200 mm thick in permanent formwork (concrete supplied in buck
7.2
120 m² × 0.06 = 7.2 m3(Structure)
m3C$703.90C$6,411.08
C$5,068.04 +15% C$760.21 +10% C$582.83
Labor Materials Equipment
TypeResourceQtyUnitUnit PriceCost
Worker Category 160.02hrsC$23.00C$1,440.27
Anthracene oil0.01tC$33,385.83C$432.78
Water0.02m3C$54.42C$1.12
Electricity0.28kWhC$8.91C$2.51
Polyethylene film, thickness KA.MESA mm3.09m2C$18.30C$56.40
Construction nails0.00tC$110,412.89C$79.58
Light wire, diameter ME.ME mm0.00tC$112,460.21C$161.94
Edged coniferous timber (spruce, pine), natural moisture content, length RI-NE.SA m, width 20-90 mm, thickness 20-90 mm, grade III0.09m3C$21,104.23C$1,884.13
Edged softwood board, natural moisture content, length RI-NE.SA m, width 100-250 mm, thickness 25 mm, grade III0.01m3C$17,451.05C$201.03
Edged softwood boards, natural moisture content, length RI-NE.SA m, width 100-250 mm, thickness 44-50 mm, grade III0.04m3C$17,451.05C$653.36
Tower cranes, lifting capacity 8 t1.94Machine hoursC$42.52C$82.66
Personnel: 1 person-hour/machine-hour1.94Machine hoursC$19.02C$36.98
Mobile cranes, lifting capacity 16 t0.10Machine hoursC$67.73C$7.07
Personnel: 1 person-hour/machine-hour0.10Machine hoursC$19.02C$1.99
Universal front-end pneumatic wheeled single-bucket loaders, nominal capacity of main bucket RI.NE m3, load capacity 5 t0.19Machine hoursC$70.28C$13.47
Personnel: 1 person-hour/machine-hour0.19Machine hoursC$16.28C$3.12
Deep vibrators2.90Machine hoursC$0.56C$1.64
Trucks, load capacity up to 8 tons0.16Machine hoursC$37.18C$5.81
Personnel: 1 person-hour/machine-hour0.16Machine hoursC$14.16C$2.21
▼External Walls 1 items C$16,345.83
#CodeDescriptionQtyUnitUnit PriceTotal
5KAVO_KARI_KAMESA_KARICON
Masonry of external and internal brick walls with an air gap: with a floor height of more than 4 m
22.8
120 m² × 0.19 = 22.8 m3(External Walls)
m3C$566.74C$16,345.83
C$12,921.60 +15% C$1,938.24 +10% C$1,485.98
Labor Materials Equipment
TypeResourceQtyUnitUnit PriceCost
Worker Category 1126.77hrsC$63.88C$8,097.47
Water5.70m3C$774.92C$4,417.07
Tower cranes, lifting capacity 8 t5.93Machine hoursC$19.28C$114.30
Personnel: 1 person-hour/machine-hour5.93Machine hoursC$49.38C$292.76
▼Internal Walls 1 items C$15,620.87
#CodeDescriptionQtyUnitUnit PriceTotal
6KAVO_KAPU_KAKAME_RITO
Installation of partitions made of gypsum tongue-and-groove slabs: for floor heights over 4 m, in 2 layers 80 mm thick,
96.0
120 m² × 0.8 = 96 m2(Internal Walls)
m2C$128.63C$15,620.87
C$12,348.51 +15% C$1,852.28 +10% C$1,420.08
Labor Materials Equipment
TypeResourceQtyUnitUnit PriceCost
Grade 1 worker35.00hrsC$20.29C$710.23
2nd grade worker84.28hrsC$22.12C$1,864.13
Grade 4 worker78.71hrsC$27.20C$2,141.20
Grade 3 worker0.60hrsC$24.15C$14.37
Water0.29m3C$55.38C$15.91
Electricity0.52kWhC$9.07C$4.83
Plastic dowels with screws, diameter 10 mm, length 50-60 mm, screw diameter 6 mm, screw length 50-80 mm0.32100 pcsC$951.45C$301.46
Galvanized steel rack profile, dimensions 50x50 mm, thickness KA.NE mm48.00mC$131.28C$6,301.66
Hot-rolled reinforcing steel with periodic profile, class A-III, diameter 8 mm0.01tC$78,860.69C$757.20
Tower cranes, lifting capacity 8 t2.20Machine hoursC$42.66C$93.78
Personnel: 1 person-hour/machine-hour2.20Machine hoursC$19.39C$42.61
Mobile cranes, lifting capacity 16 t0.76Machine hoursC$67.95C$51.53
Personnel: 1 person-hour/machine-hour0.76Machine hoursC$19.39C$14.71
Flatbed trucks, load capacity up to 5 tons0.85Machine hoursC$26.39C$22.55
Personnel: 1 person-hour/machine-hour0.85Machine hoursC$14.43C$12.33
▼Roofing 1 items C$737.86
#CodeDescriptionQtyUnitUnit PriceTotal
7MERI_KAME_KAKARI_MERI
Installation of flat roofs from roll roofing waterproofing self-adhesive materials with anti-adhesion film: with heating
42.0
120 m² × 0.35 = 42 m2(Roofing)
m2C$13.89C$737.86
C$583.28 +15% C$87.49 +10% C$67.08
Labor Materials Equipment
TypeResourceQtyUnitUnit PriceCost
Worker Category 13.71hrsC$24.34C$90.35
Propane-butane technical mixture0.89kgC$553.74C$489.89
Mobile cranes, lifting capacity 16 t0.02Machine hoursC$66.45C$1.40
Personnel: 1 person-hour/machine-hour0.02Machine hoursC$19.06C$0.40
Single-mast hoists, load capacity up to 500 kg, lifting height 15 m0.01Machine hoursC$1.73C$0.02
Personnel: 1 person-hour/machine-hour0.01Machine hoursC$12.61C$0.16
Flatbed trucks, load capacity up to 5 tons0.03Machine hoursC$25.81C$0.65
Personnel: 1 person-hour/machine-hour0.03Machine hoursC$14.18C$0.35
Gas injection burners0.17Machine hoursC$0.39C$0.07
▼Windows 1 items C$7,345.29
#CodeDescriptionQtyUnitUnit PriceTotal
8MEKA_KAME_KATOPU_KAME
Installation of PVC profile window blocks in residential and public buildings: deaf with an opening area of up to 2 m2
18.0
120 m² × 0.15 = 18 m2(Windows)
m2C$322.59C$7,345.29
C$5,806.56 +15% C$870.98 +10% C$667.75
Labor Materials Equipment
TypeResourceQtyUnitUnit PriceCost
Worker Category 130.13hrsC$25.69C$773.87
Electricity2.06kWhC$4.07C$8.42
Waterproofing tapes, vapor-permeable butyl rubber, made of non-woven membrane-type material, with adhesive coating on the inner edges and anti-adhesive coating, beige color, width 80 mm75.24mC$22.29C$1,676.90
Pre-compressed self-expanding polyurethane foam sealing strips with adhesive layer on one side, width 10 mm, thickness when compressed 4 mm, thickness when expanded 20 mm3.8510 mC$145.29C$559.65
Polyurethane foam sealant (assembly foam), universal, volume 1000 ml12.42pcsC$164.79C$2,046.76
Steel frame mounting dowels, diameter 10 mm, length 130 (132) mm5.5110 pcsC$66.43C$365.91
Plastic mounting wedges1.44100 pcsC$239.58C$345.00
Single-mast hoists, load capacity up to 500 kg, lifting height 45 m0.32Machine hoursC$2.53C$0.80
Personnel: 1 person-hour/machine-hour0.32Machine hoursC$13.31C$4.22
Flatbed trucks, load capacity up to 5 tons0.59Machine hoursC$27.44C$16.20
Personnel: 1 person-hour/machine-hour0.59Machine hoursC$14.97C$8.84
▼Doors 1 items C$2,204.78
#CodeDescriptionQtyUnitUnit PriceTotal
9MEKA_KAME_KAPURI_KARI
Filling balcony openings in wooden log walls with caulking door blocks with door leaves: paired, opening area over 3 m2
3.6
120 m² × 0.03 = 3.6 m2(Doors)
m2C$484.14C$2,204.78
C$1,742.91 +15% C$261.44 +10% C$200.43
Labor Materials Equipment
TypeResourceQtyUnitUnit PriceCost
Worker Category 110.66hrsC$27.56C$293.69
Water0.03m3C$89.16C$2.29
Electricity0.28kWhC$14.60C$4.12
Resin-impregnated tow3.85kgC$273.61C$1,053.91
Self-tapping steel screws, oxidized, with countersunk head and cross-shaped slot, pointed, diameter 8 mm, length 100 mm0.00tC$269,674.27C$96.97
Edged coniferous timber (spruce, pine), natural moisture content, length RI-NE.SA m, width 20-90 mm, thickness 20-90 mm, grade III0.01m3C$34,574.51C$286.35
Flatbed trucks, load capacity up to 5 tons0.14Machine hoursC$26.13C$3.60
Personnel: 1 person-hour/machine-hour0.14Machine hoursC$14.41C$1.98
▼Flooring 1 items C$15,105.21
#CodeDescriptionQtyUnitUnit PriceTotal
10MEME_KAME_KASAVO_KARI
Installation of two-color cement mortar coatings made of ceramic tiles: stair landings
102.0
120 m² × 0.85 = 102 m2(Flooring)
m2C$117.07C$15,105.21
C$11,940.87 +15% C$1,791.13 +10% C$1,373.20
Labor Materials Equipment
TypeResourceQtyUnitUnit PriceCost
Worker Category 1285.02hrsC$26.60C$7,581.62
Water0.01m3C$13.74C$0.14
Electricity13.27kWhC$2.25C$29.89
Colored cotton rags0.51kgC$28.30C$14.45
Ready-mixed masonry mortar, cement, M1502.60m3C$1,641.43C$4,269.37
Universal front-end pneumatic wheeled single-bucket loaders, nominal capacity of main bucket RI.NE m3, load capacity 5 t0.27Machine hoursC$72.12C$19.13
Personnel: 1 person-hour/machine-hour0.27Machine hoursC$17.18C$4.56
Single-mast hoists, load capacity up to 500 kg, lifting height 45 m0.27Machine hoursC$2.49C$0.66
Personnel: 1 person-hour/machine-hour0.27Machine hoursC$13.28C$3.53
Flatbed trucks, load capacity up to 5 tons0.42Machine hoursC$26.99C$11.29
Personnel: 1 person-hour/machine-hour0.42Machine hoursC$14.95C$6.25
▼Ceiling 1 items C$12,052.06
#CodeDescriptionQtyUnitUnit PriceTotal
11MESA_KAME_MEKATO_KAME
Installation of a load-bearing suspended ceiling for clean rooms, with panel dimensions of 1240x1240 mm
90.0
120 m² × 0.75 = 90 m2(Ceiling)
m2C$105.86C$12,052.06
C$9,527.33 +15% C$1,429.10 +10% C$1,095.64
Labor Materials Equipment
TypeResourceQtyUnitUnit PriceCost
Grade 1 worker3.58hrsC$30.22C$108.25
2nd grade worker4.16hrsC$32.94C$136.97
Grade 4 worker27.01hrsC$40.51C$1,094.24
Grade 5 worker32.62hrsC$46.55C$1,518.64
Grade 6 worker26.32hrsC$54.41C$1,431.73
Rectified technical ethyl alcohol, grade I3.24kgC$60.02C$194.48
Electricity0.61kWhC$0.48C$0.30
Butyl rubber waterproofing sealing tape, with adhesive layer on both sides, black, width 15 mm, thickness ME.SA mm19.8010 mC$6.36C$125.91
Stainless steel anchor screws with hexagonal head, diameter 6 mm, length 35 mm0.44100 pcsC$2,074.49C$914.84
Galvanized steel hex nuts, thread diameter M8 (M10)1.44kgC$10.06C$14.49
Threaded steel pin, thread diameter M10, length 2000 mm44.10pcsC$5.45C$240.23
Flat cutting disc, dimensions 230x3x22 mm0.13pcsC$4.76C$0.60
Drill bit with carbide tip, SDS-plus shank for hammer drilling holes in hard materials, total length 160 mm, diameter 6 mm0.11pcsC$4.54C$0.48
Steel height adjuster for suspended ceilings, hole for stud with diameter M10, dimensions 64x50x83 mm44.10pcsC$53.44C$2,356.51
Steel rack plug for suspended ceiling support profile, dimensions 100x4000 mm40.86pcsC$31.82C$1,300.29
Mobile cranes, lifting capacity 16 t0.53Machine hoursC$100.32C$53.28
Personnel: 1 person-hour/machine-hour0.53Machine hoursC$28.87C$15.32
Single-mast hoists, load capacity up to 500 kg, lifting height 45 m0.27Machine hoursC$3.59C$0.98
Personnel: 1 person-hour/machine-hour0.27Machine hoursC$19.10C$5.15
Flatbed trucks, load capacity up to 10 tons0.19Machine hoursC$55.93C$10.57
Personnel: 1 person-hour/machine-hour0.19Machine hoursC$21.49C$4.06
▼Plastering 1 items C$9,772.28
#CodeDescriptionQtyUnitUnit PriceTotal
12NEME_KAME_KAKAME_KADX
Continuous leveling of interior surfaces (single-layer plastering) with dry mortar mixtures up to 10 mm thick for subseq
192.0
120 m² × 1.6 = 192 m2(Plastering)
m2C$40.23C$9,772.28
C$7,725.12 +15% C$1,158.77 +10% C$888.39
Labor Materials Equipment
TypeResourceQtyUnitUnit PriceCost
Average work load RI.DX68.79hrsC$23.34C$1,605.98
Water0.98m3C$6,217.36C$6,092.64
Universal front-end pneumatic wheeled single-bucket loaders, nominal capacity of main bucket RI.NE m3, load capacity 5 t0.04Machine hoursC$68.62C$2.63
Personnel: 1 person-hour/machine-hour0.04Machine hoursC$16.17C$0.62
Single-mast hoists, load capacity up to 500 kg, lifting height 45 m0.40Machine hoursC$2.37C$0.95
Personnel: 1 person-hour/machine-hour0.40Machine hoursC$12.50C$5.04
Mobile mortar mixers, drum capacity 65 l1.36Machine hoursC$0.16C$0.21
Personnel: 1 person-hour/machine-hour1.36Machine hoursC$12.50C$17.04
▼Painting 1 items C$5,592.54
#CodeDescriptionQtyUnitUnit PriceTotal
13NERI_KAME_KAKALI_KANE
Improved oil painting of previously painted walls: for two coats with removal of old paint over 35%
192.0
120 m² × 1.6 = 192 m2(Painting)
m2C$23.03C$5,592.54
C$4,420.98 +15% C$663.15 +10% C$508.41
Labor Materials Equipment
TypeResourceQtyUnitUnit PriceCost
Worker Category 1145.32hrsC$28.78C$4,182.99
Pumice2.76kgC$48.72C$134.69
Two-layer sanding paper with a grain size of 40-252.11m2C$10.33C$21.81
Colored cotton rags0.35kgC$1.21C$0.42
Combined drying oil for diluting thick oil paints and for exterior work on wooden surfaces0.02tC$1,013.14C$19.45
Adhesive filler0.10tC$549.02C$52.70
Single-mast hoists, load capacity up to 500 kg, lifting height 45 m0.19Machine hoursC$2.81C$0.54
Personnel: 1 person-hour/machine-hour0.19Machine hoursC$15.09C$2.89
Flatbed trucks, load capacity up to 5 tons0.12Machine hoursC$30.51C$3.52
Personnel: 1 person-hour/machine-hour0.12Machine hoursC$16.98C$1.96
▼Electrical 1 items C$1,928.60
#CodeDescriptionQtyUnitUnit PriceTotal
14KAVO_KASA_KAPUME_KAMEm
Electrical wiring in chambers: cable or wire with band fasteners
360.0
120 m² × 3 = 360 m(Electrical)
mC$4.23C$1,928.60
C$1,524.58 +15% C$228.69 +10% C$175.33
Labor Materials Equipment
TypeResourceQtyUnitUnit PriceCost
Worker Category 150.62hrsC$26.69C$1,351.04
Electricity3.46kWhC$0.30C$1.02
Plastic mounting tapes for wire bundling, fastened with plastic buttons, width 10 mm1.0810 mC$2.51C$2.71
Polypropylene expansion anchors3.67100 pcsC$2.18C$8.02
Copper cable lugs for electrical installations0.07100 pcsC$540.13C$38.89
Mobile cranes, lifting capacity 16 t0.90Machine hoursC$65.71C$59.14
Personnel: 1 person-hour/machine-hour0.90Machine hoursC$19.02C$17.12
Non-tipping wagons, capacity TO.TO m31.12Machine hoursC$0.83C$0.92
Flatbed trucks, load capacity up to 10 tons0.90Machine hoursC$36.64C$32.98
Personnel: 1 person-hour/machine-hour0.90Machine hoursC$14.16C$12.74
▼Plumbing 1 items C$3,334.47
#CodeDescriptionQtyUnitUnit PriceTotal
15MENE_KATO_KAKARI_KARI
Laying water supply pipelines using multilayer metal-polymer pipes with a diameter of: 20 mm
72.0
120 m² × 0.6 = 72 m(Plumbing)
mC$36.61C$3,334.47
C$2,635.94 +15% C$395.39 +10% C$303.13
Labor Materials Equipment
TypeResourceQtyUnitUnit PriceCost
Worker Category 174.16hrsC$27.31C$2,025.55
Water0.34m3C$114.81C$38.88
Electricity1.71kWhC$18.80C$31.81
Corrugated protective pipes7.92mC$66.31C$525.43
Tower cranes, lifting capacity 8 t0.03Machine hoursC$41.70C$1.20
Personnel: 1 person-hour/machine-hour0.03Machine hoursC$19.18C$0.55
Mobile cranes, lifting capacity 16 t0.02Machine hoursC$66.42C$1.43
Personnel: 1 person-hour/machine-hour0.02Machine hoursC$19.18C$0.41
Flatbed trucks, load capacity up to 5 tons0.27Machine hoursC$25.80C$6.87
Personnel: 1 person-hour/machine-hour0.27Machine hoursC$14.28C$3.80
▼HVAC 1 items C$8,796.70
#CodeDescriptionQtyUnitUnit PriceTotal
16RIKA_KAME_KAKARI_RIME
Installation of air ducts made of galvanized sheet steel and class P aluminum (dense) with a thickness of: ME.RI mm, dia
120.0
120 m² × 1 = 120 m2(HVAC)
m2C$57.95C$8,796.70
C$6,953.92 +15% C$1,043.09 +10% C$799.70
Labor Materials Equipment
TypeResourceQtyUnitUnit PriceCost
Worker Category 163.36hrsC$26.18C$1,658.58
Polyethylene tapes with adhesive layer, transparent, width 20 mm, thickness KA.KAVO mm6.95kgC$469.50C$3,262.09
Welding electrodes for welding low-alloy and carbon steels UONI 13/45, E42A, diameter 4-5 mm0.40kgC$63.74C$25.23
Bolts with nuts and washers for construction11.76kgC$89.33C$1,050.56
Rubber gaskets (pressed technical plate)9.12kgC$99.28C$905.41
Mobile cranes, lifting capacity 16 t0.31Machine hoursC$71.39C$22.28
Personnel: 1 person-hour/machine-hour0.31Machine hoursC$20.50C$6.40
Manual and lever winches with a pulling force of TOME.TODX kN (TO.RI t)10.56Machine hoursC$0.15C$1.61
Electric winches with a pulling force of MEDX.NERI kN (2 t)0.10Machine hoursC$0.76C$0.07
Flatbed trucks, load capacity up to 5 tons0.46Machine hoursC$27.73C$12.64
Personnel: 1 person-hour/machine-hour0.46Machine hoursC$15.26C$6.96
Welding machines for manual arc welding, welding current up to 350 A1.36Machine hoursC$1.54C$2.09
▼Facade 1 items C$55,674.81
#CodeDescriptionQtyUnitUnit PriceTotal
17NEME_KATO_KAKAPU_KADX
Repair of plaster on external straight slopes on stone and concrete with decorative mortar: from telescopic towers
60.0
120 m² × 0.5 = 60 m2(Facade)
m2C$733.53C$55,674.81
C$44,011.71 +15% C$6,601.76 +10% C$5,061.35
Labor Materials Equipment
TypeResourceQtyUnitUnit PriceCost
Worker Category 1543.06hrsC$18.59C$10,095.30
Water0.21m3C$0.57C$0.12
Plaster mortar, lime, M1002.05m3C$58.62C$119.94
Universal front-end pneumatic wheeled single-bucket loaders, nominal capacity of main bucket KA.PUNE m3, load capacity 1 t1.58Machine hoursC$28.74C$45.52
Personnel: 1 person-hour/machine-hour1.58Machine hoursC$10.09C$15.98
Self-propelled telescopic lifts, working height 26 m, load capacity 250 kg316.00Machine hoursC$93.20C$29,451.08
Personnel: 1 person-hour/machine-hour316.00Machine hoursC$13.56C$4,283.76
▼Landscaping 1 items C$1,197.99
#CodeDescriptionQtyUnitUnit PriceTotal
18PULI_KAME_KAPUNE_MERI
Installation of hybrid lawn on hills: with sowing of new turf
12.0
120 m² × 0.1 = 12 m2(Landscaping)
m2C$78.92C$1,197.99
C$947.02 +15% C$142.05 +10% C$108.91
Labor Materials Equipment
TypeResourceQtyUnitUnit PriceCost
2nd grade worker1.62hrsC$21.85C$35.39
Grade 3 worker2.41hrsC$23.86C$57.60
Grade 4 worker2.41hrsC$26.87C$64.87
Flatbed trucks, load capacity up to 5 tons0.03Machine hoursC$25.59C$0.80
Personnel: 1 person-hour/machine-hour0.03Machine hoursC$14.25C$0.45
Installation of hybrid lawn on hills: with sowing of new turf12.00m2C$65.66C$787.91
Cost Summary
Direct Cost79%C$134,682.98
Overhead+15%C$20,202.47
Profit+10%C$15,488.54
Grand TotalC$170,373.99

Resource Summary

77 resourcesiAggregated materials, labor, and equipment needed for the entire project
Materials to Order (49)
ResourceUnitQtyUnit PriceCost
Waterm37.59C$1,392.10C$10,571.90
Galvanized steel rack profile, dimensions 50x50 mm, thickness KA.NE mmm48.00C$131.28C$6,301.66
Ready-mixed masonry mortar, cement, M150m32.60C$1,641.43C$4,269.37
Polyethylene tapes with adhesive layer, transparent, width 20 mm, thickg6.95C$469.50C$3,262.09
Steel height adjuster for suspended ceilings, hole for stud with diamepcs44.10C$53.44C$2,356.51
Edged softwood boards, natural moisture content, length RI-NE.SA m, wim30.06C$37,461.06C$2,337.57
Edged coniferous timber (spruce, pine), natural moisture content, lengm30.10C$22,238.52C$2,170.48
Polyurethane foam sealant (assembly foam), universal, volume 1000 mlpcs12.42C$164.80C$2,046.76
Waterproofing tapes, vapor-permeable butyl rubber, made of non-woven mm75.24C$22.29C$1,676.90
Steel rack plug for suspended ceiling support profile, dimensions 100xpcs40.86C$31.82C$1,300.29
Welding electrodes for welding low-alloy and carbon steels UONI 13/45,kg7.60C$154.91C$1,176.67
Resin-impregnated towkg3.85C$273.60C$1,053.91
Bolts with nuts and washers for constructionkg11.76C$89.33C$1,050.56
Stainless steel anchor screws with hexagonal head, diameter 6 mm, leng100 pcs0.44C$2,074.47C$914.84
Rubber gaskets (pressed technical plate)kg9.12C$99.28C$905.41
Installation of hybrid lawn on hills: with sowing of new turfm212.00C$65.66C$787.91
Hot-rolled reinforcing steel with periodic profile, class A-III, diamet0.01C$78,875.00C$757.20
Unedged softwood board, natural moisture content, length RI-NE.SA m, wm30.05C$11,682.95C$616.86
Construction nailst0.00C$215,681.48C$582.34
Pre-compressed self-expanding polyurethane foam sealing strips with ad10 m3.85C$145.29C$559.65
Corrugated protective pipesm7.92C$66.34C$525.43
Propane-butane technical mixturekg0.89C$552.80C$489.89
Anthracene oilt0.01C$33,290.77C$432.78
Polyethylene film, thickness KA.MESA mmm28.23C$51.03C$420.23
Steel frame mounting dowels, diameter 10 mm, length 130 (132) mm10 pcs5.51C$66.43C$365.91
Plastic mounting wedges100 pcs1.44C$239.58C$345.00
Plastic dowels with screws, diameter 10 mm, length 50-60 mm, screw dia100 pcs0.32C$951.58C$301.46
Hot-rolled wire in coils, diameter NE.TO-NE.SA mmt0.00C$282,860.00C$282.86
Threaded steel pin, thread diameter M10, length 2000 mmpcs44.10C$5.45C$240.23
Edged softwood board, natural moisture content, length RI-NE.SA m, widm30.01C$17,480.87C$201.03
Grand TotalC$49,586.85
Labor Requirements (10)
ResourceUnitQtyUnit PriceCost
Worker Category 1hrs1,427.61C$26.88C$38,380.75
Personnel: 1 person-hour/machine-hourMachine hours344.57C$14.38C$4,955.89
Grade 4 workerhrs108.13C$30.52C$3,300.31
2nd grade workerhrs90.06C$22.61C$2,036.49
Average work load RI.DXhrs68.79C$23.34C$1,605.98
Grade 5 workerhrs32.62C$46.55C$1,518.64
Grade 6 workerhrs26.32C$54.41C$1,431.73
Grade 1 workerhrs38.58C$21.21C$818.48
Average workload TO.KAhrs22.56C$22.53C$508.18
Grade 3 workerhrs3.01C$23.91C$71.97
Grand TotalC$54,628.42
Equipment Requirements (18)
ResourceUnitQtyUnit PriceCost
Self-propelled telescopic lifts, working height 26 m, load capacity 25Machine hours316.00C$93.20C$29,451.08
Tower cranes, lifting capacity 8 tMachine hours16.26C$34.02C$553.18
Mobile cranes, lifting capacity 16 tMachine hours2.77C$73.76C$204.66
Flatbed trucks, load capacity up to 5 tonsMachine hours3.08C$26.94C$83.09
Universal front-end pneumatic wheeled single-bucket loaders, nominal cMachine hours1.58C$28.74C$45.52
Flatbed trucks, load capacity up to 10 tonsMachine hours1.09C$39.99C$43.55
Universal front-end pneumatic wheeled single-bucket loaders, nominal cMachine hours0.53C$71.04C$37.73
Single-bucket diesel excavators on crawler tracks, bucket capacity ME.Machine hours0.27C$88.03C$23.45
Welding machines for manual arc welding, welding current up to 350 AMachine hours6.40C$1.48C$9.48
Trucks, load capacity up to 8 tonsMachine hours0.16C$37.20C$5.81
Single-mast hoists, load capacity up to 500 kg, lifting height 45 mMachine hours1.45C$2.72C$3.93
Deep vibratorsMachine hours5.92C$0.56C$3.32
Manual and lever winches with a pulling force of TOME.TODX kN (TO.RI tMachine hours10.56C$0.15C$1.61
Non-tipping wagons, capacity TO.TO m3Machine hours1.12C$0.82C$0.92
Mobile mortar mixers, drum capacity 65 lMachine hours1.36C$0.15C$0.21
Gas injection burnersMachine hours0.17C$0.42C$0.07
Electric winches with a pulling force of MEDX.NERI kN (2 t)Machine hours0.10C$0.73C$0.07
Single-mast hoists, load capacity up to 500 kg, lifting height 15 mMachine hours0.01C$1.59C$0.02
Grand TotalC$30,467.70

Material Alternatives

iAlternative materials with approximate price difference. Percentages show material cost change relative to the current specification.
Installation of PVC profile window blocks in residentiaC$5,002.63
Triple-glazed PVC+35%Aluminum frame+25%Timber frame+45%
Installation of two-color cement mortar coatings made oC$4,313.85
Vinyl/LVT-35%Natural stone+100%Polished concrete-30%
Construction of reinforced concrete floors and slabs upC$3,472.85
High-strength concrete+20%Lightweight concrete+15%Recycled aggregate-10%
Construction of reinforced concrete foundations for genC$2,786.51
High-strength concrete+20%Lightweight concrete+15%Recycled aggregate-10%
Construction of reinforced concrete columns in wooden fC$2,011.49
High-strength concrete+20%Lightweight concrete+15%Recycled aggregate-10%
Laying water supply pipelines using multilayer metal-poC$596.12
Copper pipe+120%PEX pipe-15%Stainless steel+200%

Risk Analysis

Monte Carlo · 10KiMonte Carlo simulation (10,000 iterations) showing completion probability at different confidence levels
226days
P50
50% probability the project finishes within this timeframe. Median scenario based on Monte Carlo simulation.
236days
P80
80% probability — recommended planning basis. Accounts for common delays and uncertainties.
246days
P95
95% probability — conservative estimate. Covers nearly all risk scenarios including severe delays.
+30days
Buffer
Recommended time buffer to add to the deterministic schedule. Covers typical construction uncertainties.
Base Cost (P50)
C$170,373.99
Budget (P80)
C$178,224.43
Maximum (P95)
C$185,747.76
Contingency
+4.6%
Recommended cost reserve based on schedule risk analysis — C$7,850.44
Recommended Budget: C$178,224.43
Deterministic 206 days
P50 226 days
P80 236 days
P95 246 days
P50 P80 P95
Based on Monte Carlo simulation with 10,000 iterations using PERT distribution for each phase duration.
Peak: 8
2,162 man-hours
15 crit. phases

Cost Risk Analysis

Monte Carlo · 10,000 iterations

Monte Carlo simulation of construction cost uncertainty

Cost Percentiles

C$212,010.65
P10
C$214,848.48
P25
C$218,401.83
P50
C$223,157.99
P80
C$225,492.39
P90

Cumulative Probability (S-Curve)

+2.2%
Recommended Contingency (P80 − P50)
Reserve to cover likely cost overruns with 80% confidence — C$4,756.16

Top Risk Drivers

CategoryWork ItemRisk Share
FacadeRepair of plaster on external straight slopes on s
75.2%
External WallsMasonry of external and internal brick walls with
5.8%
Internal WallsInstallation of partitions made of gypsum tongue-a
5.3%
HVACInstallation of air ducts made of galvanized sheet
3.3%
FlooringInstallation of two-color cement mortar coatings m
3.1%
CeilingInstallation of a load-bearing suspended ceiling f
1.9%
PlasteringContinuous leveling of interior surfaces (single-l
1.3%
WindowsInstallation of PVC profile window blocks in resid
1.2%

Sensitivity Analysis

±10%iImpact of ±10% change in each cost component on the total project cost

This tornado chart shows how a ±10% change in each cost category affects the total estimate. The wider the bar, the greater the cost impact — helping identify which cost drivers carry the most risk and where tighter cost control may be needed.

Decrease ← → IncreaseImpact
Labor32% of total
±C$5,462.84±3.2%
Materials29% of total
±C$4,958.69±2.9%
Equipment18% of total
±C$3,046.77±1.8%
Overhead12% of total
±C$2,020.25±1.2%
Profit9% of total
±C$1,548.85±0.9%

Cost Summary

iFinal cost breakdown with direct costs, overhead, profit, and grand total
LaborC$54,628.4332%
MaterialsC$49,586.8829%
EquipmentC$30,467.6718%
Direct CostC$134,682.98
OverheadC$20,202.4712%
ProfitC$15,488.549%
Grand TotalC$170,373.99100%
EUR equivalent€106.284,46
USD equivalent$122,492.84
GBP equivalent£92,736.38

Estimate Classification

AACE 18R-97

AACE International Recommended Practice 18R-97

3
ClassClass 3
Typical PurposeBudget Authorization
Expected Accuracy Range: -20% / +30%
Project Definition Level: 10–40%

Cost Benchmark

Office · North America

Comparison of estimated cost/m² against market reference ranges

Low
1,800
▲ Typical
2,500
High
3,800
▼ Your Estimate
904 EUR/m²
Significantly below range · 0.36x ratio to typical

Methodology & Assumptions

iCalculation methodology, data sources, and key assumptions underlying this estimate
Data SourceDDC Pricing DB — English
Confidence Level50%
Overhead Rate15%
Profit Rate10%
Items Matched18
Assumptions
  • Costs adjusted by location-specific labor, material, and equipment factors
  • Exchange rates are offline reference rates and may differ from market rates
  • All amounts exclude VAT / sales tax
  • This estimate is for preliminary budgeting only — not a binding quotation
Included in Estimate
  • All labor, materials, and equipment per defined scope
  • Overhead and profit margins as specified
  • Location-adjusted pricing factors applied
Excluded from Estimate
  • VAT / sales tax
  • Permits, licenses, and legal fees
  • Temporary works and site facilities
  • Design and engineering fees
Prices current as of 2026-03-16 · No cost escalation or inflation adjustment applied
DDC Toolkit · Generated 2026-03-16 16:41 · This estimate is for preliminary budgeting purposes only.

Frequently Asked Questions

How much does Roof Replacement cost?
The cost depends on your location, materials chosen, and project scope. Use our calculator with your specific city to get an instant estimate based on 29 verified work items from our database of 55,719 construction prices.
What work items are included in this estimate?
This BOQ includes 29 work items covering Strip Existing Roof, Repair & Prepare, Insulation, New Roof Covering, Rainwater & Finishing. Each item is matched to unit rates from our verified pricing database spanning 9 languages and 36 locations worldwide.
How long does Roof Replacement take?
Duration depends on project size and complexity. A typical 120 m² roof project takes approximately 4 weeks. Our calculator generates a detailed Gantt chart with phase-by-phase scheduling.
How accurate is this estimate?
Our estimates use verified construction pricing data with location-specific adjustments (PPP factors). The Monte Carlo simulation provides P10-P90 confidence intervals. For formal budgeting, we recommend a Class 3 AACE estimate with local contractor quotes.
What does a roof replacement include?
Complete roof replacement estimate for 150 m² of roof area. Covers removal of existing roofing material, inspection and repair of roof deck/sheathing, installation of underlayment and ice-water shield, new asphalt shingles or metal roofing, ridge vents, flashing at penetrations, fascia and soffit repair, and gutter replacement.

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