Cost estimate for building a 30 m² outdoor terrace or deck. Includes substructure (concrete footings or adjustable pedestals), composite or hardwood decking boards, railing system, built-in seating, LED deck lighting, waterproofing membrane (for above-structure terraces), and staircase. Designed for residential outdoor living.
Data Source:DDC Pricing DB — English·55,719 items·CWICR
City Adjustment
🏛 Toronto, Canada
Your city matches the base — coefficients ×1.00
PPP Coefficients
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Material Factor
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Equipment Factor
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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$1,260,366.76Direct Cost
Labor (31%)C$14,019.46
Materials (47%)C$21,315.79
Equipment (2%)C$718.87
Overhead (415%)C$189,055.02
Profit (318%)C$144,942.19
Cost / m²
Labor
C$467.32
Materials
C$710.53
Equipment
C$23.96
Overhead
C$6,301.83
Profit
C$4,831.41
Grand Total
C$1,520.28
Materials / Labor
1.52
Direct Cost %
2763.4%
16 work items across 5 categories, 50 resources
Cost Flow
5iVisual flow of the total budget through work categories, showing proportional cost distribution
Complete BOQ: 18 work items for Terrace / Deck Construction
Categories
5iCost distribution by work category — earthwork, structure, facade, MEP, finishes, etc.
Category
Cost
Cost / m²
Share
Decking
C$791.66
C$26.39
1.7%
Finishing
C$5,872.95
C$195.76
12.9%
Preparation
C$21,155.58
C$705.19
46.4%
Substructure
C$1,559,118.84
C$51,970.63
3418.5%
Balustrade & Steps
C$7,424.95
C$247.50
16.3%
Top Items
Description
Total
Replacement: Compact toilets
C$18,162.33
Installation of frames made of wooden posts and metal t…
C$7,086.14
Installation of wooden posts under beams or joists
C$5,649.82
Linear LED lighting fixture, uncontrolled: when accessi…
C$5,161.70
Repairing a soft roofing membrane using an infrared hea…
C$2,898.60
What-If Scenarios
iExplore how changes in material, labor, or equipment costs affect the total project budget
Optimistic (-10%)
C$41,047.63
↓ C$4,560.85 savings
Labor -10% · Materials -10% · Equipment -10%
Base Estimate
C$45,608.48
Deterministic
Labor ×1.00 · Materials ×1.00 · Equipment ×1.00
Pessimistic (+15%)
C$52,449.75
↑ C$6,841.27 increase
Labor +15% · Materials +15% · Equipment +15%
Custom Scenario: Adjust cost components
Labor0%
Materials0%
Equipment0%
Custom Scenario Total Cost
C$45,608.48
Clicking Apply will update PPP coefficients and recalculate all line items
Project Schedule
≈1 monthsiProject timeline with critical path method (CPM), Gantt chart, and resource allocation
1
months
42
days
8
phases
2
Critical Path
6
Peak workers
512
Labor Hours
Site PreparationEarthworksStructural FrameworkWaterproofing and SealantsRoofingFacade & ExteriorMEP Rough-inTesting and CommissioningCumulative Cost
Labor Hours by Phase
Structural Framework
285 hours
Roofing
151 hours
Waterproofing and Se
58 hours
Site Preparation
50 hours
Testing and Commissi
50 hours
MEP Rough-in
12 hours
Facade & Exterior
7 hours
Earthworks
0 hours
Monthly Cash Flow
2 monthsiMonthly cost distribution and cumulative S-curve showing how project spending builds over time
87%
M1
100%
M2
Month
days
Monthly Cost
%
Cumulative
%
M1
1–30
C$39,667.50
87.0%
C$39,667.50
87%
M2
31–42
C$5,940.98
13.0%
C$45,608.48
100%
Daily Cash Flow
6 weeks
3%
D1
15%
D5
27%
D9
39%
D13
52%
D17
64%
D21
76%
D25
85%
D29
92%
D33
96%
D37
99%
D41
100%
D42
Week
days
Weekly Cost
%
Cumulative
%
W1
D1–D7
C$9,469.10
20.8%
C$9,469.10
21%
W2
D8–D14
C$9,928.62
21.8%
C$19,397.73
43%
W3
D15–D21
C$9,850.79
21.6%
C$29,248.52
64%
W4
D22–D28
C$9,006.10
19.7%
C$38,254.62
84%
W5
D29–D35
C$4,945.07
10.8%
C$43,199.69
95%
W6
D36–D42
C$2,408.79
5.3%
C$45,608.48
100%
Line Items
16 itemsiDetailed work items grouped by category with quantities, unit prices, and resource breakdown
▼Preparation3 itemsC$21,080.91
#
Code
Description
Qty
Unit
Unit Price
Total
1
KAME_KAME_KAKAME_KAMECON
Soil excavation using single-bucket electric dragline excavators with a bucket capacity of: 15 m3, soil group 1
2.0
2 m³(Preparation)
m3
C$7.90
C$19.98
C$15.80 +15% C$2.37+10% C$1.82
Labor Materials Equipment
Type
Resource
Qty
Unit
Unit Price
Cost
Worker Category 1
0.00
hrs
C$39.77
C$0.13
Bulldozers, power 79 kW (108 hp)
0.00
Machine hours
C$50.28
C$0.16
Personnel: 1 person-hour/machine-hour
0.00
Machine hours
C$28.00
C$0.10
Single-bucket electric walking excavators with dragline working equipment, bucket capacity 15 m3
0.00
Machine hours
C$4,705.18
C$15.06
Personnel: 3 man-hours/machine-hours
0.00
Machine hours
C$108.62
C$0.35
2
NESA_KAME_KAKANE_MERI
Replacement: Compact toilets
32.0
32 m²(Preparation)
pcs
C$448.67
C$18,162.33
C$14,357.58 +15% C$2,153.64+10% C$1,651.12
Labor Materials Equipment
Type
Resource
Qty
Unit
Unit Price
Cost
Worker Category 1
132.06
hrs
C$25.88
C$3,417.54
Linen thread
0.34
kg
C$287.41
C$96.65
Self-tapping steel screws with a semi-circular head and a straight slot, pointed, diameter 6 mm, length 40 mm
0.00
t
C$204,368.41
C$653.97
Expanding gypsum-clay cement
0.01
t
C$67,016.79
C$429.02
MA-0115 oil paint, mummy, iron minium
0.83
kg
C$191.60
C$159.58
Polyvinyl chloride bushings
1.28
100 pcs
C$7,490.12
C$9,587.34
Single-mast hoists, load capacity up to 500 kg, lifting height 45 m
0.24
Machine hours
C$2.42
C$0.58
Personnel: 1 person-hour/machine-hour
0.24
Machine hours
C$12.92
C$3.10
Flatbed trucks, load capacity up to 5 tons
0.24
Machine hours
C$26.28
C$6.31
Personnel: 1 person-hour/machine-hour
0.24
Machine hours
C$14.54
C$3.49
3
SAVO_KAME_KARINE_KARI
Repairing a soft roofing membrane using an infrared heater and installing a new covering: in two layers
32.0
32 m²(Preparation)
m2
C$71.61
C$2,898.60
C$2,291.38 +15% C$343.71+10% C$263.51
Labor Materials Equipment
Type
Resource
Qty
Unit
Unit Price
Cost
Worker Category 1
57.92
hrs
C$36.94
C$2,139.37
BNK-90/30 petroleum bitumen for roofing
0.32
t
C$250.74
C$80.23
RKK-350 roofing felt
87.04
m2
C$0.58
C$50.63
Infrared heaters for soft roofs
10.56
Machine hours
C$2.00
C$21.15
▼Substructure4 itemsC$10,438.01
#
Code
Description
Qty
Unit
Unit Price
Total
4
NENE_KAME_KAKAPU_KAME
Replacement of reinforced concrete pads at the bottom of channels for pipelines
12.0
12 pcs(Substructure)
pcs
C$19.24
C$292.01
C$230.83 +15% C$34.63+10% C$26.55
Labor Materials Equipment
Type
Resource
Qty
Unit
Unit Price
Cost
Worker Category 1
7.20
hrs
C$21.01
C$151.25
Ready-mixed masonry mortar, cement, M100
0.12
m3
C$194.68
C$23.36
Mobile cranes, lifting capacity 16 t
0.48
Machine hours
C$61.88
C$29.70
Personnel: 1 person-hour/machine-hour
0.48
Machine hours
C$17.91
C$8.60
Flatbed trucks, load capacity up to 5 tons
0.48
Machine hours
C$24.03
C$11.53
Personnel: 1 person-hour/machine-hour
0.48
Machine hours
C$13.33
C$6.40
5
SAPU_KAME_KAMEKA_KAME
Installation of wooden posts under beams or joists
80.0
80 m(Substructure)
m
C$55.83
C$5,649.82
C$4,466.26 +15% C$669.94+10% C$513.62
Labor Materials Equipment
Type
Resource
Qty
Unit
Unit Price
Cost
Worker Category 1
85.84
hrs
C$29.15
C$2,502.30
Forgings from square billets, weight ME.SA-PU.SA kg
0.05
t
C$6,721.93
C$322.66
Round coniferous timber, unpeeled, length TO-NE.SA m, diameter 14-24 cm, grade II-III
2.71
m3
C$594.65
C$1,612.69
Flatbed trucks, load capacity up to 5 tons
0.56
Machine hours
C$32.92
C$18.43
Personnel: 1 person-hour/machine-hour
0.56
Machine hours
C$18.18
C$10.18
6
RIKA_KARI_KARIME_MEMEm
Reinforcement of rigid crossbars with cantilevered fixing posts and triangular hangers, number of tracks: 2
1.0
1 set(Substructure)
pcs
C$1,366.54
C$1,728.67
C$1,366.54 +15% C$204.98+10% C$157.15
Labor Materials Equipment
Type
Resource
Qty
Unit
Unit Price
Cost
Worker Category 1
15.80
hrs
C$26.15
C$413.15
Triangular hot-dip galvanized suspension, length 400 mm, dimensions of the rigid crossbar support of the contact network 450x700 mm
2.06
pcs
C$67.26
C$138.55
Earring Sr-PU.SA 075
2.06
pcs
C$9.11
C$18.77
Single saddle for earring KS-008
2.06
pcs
C$56.31
C$115.99
KS-078 locks
0.02
100 pcs
C$188.62
C$3.77
KS-107 hook bolt
37.10
pcs
C$5.56
C$206.18
Railcars for operation on a contact network with an insulated mounting platform and a crane unit equipped with removable cradles
2.55
Machine hours
C$147.48
C$376.07
Personnel: 2 man-hours/machine-hour
2.55
Machine hours
C$36.88
C$94.06
7
MESA_KALI_KAMESA_KADX
Installation of a wall and corner protection system: Handrail on aluminum profile on plasterboard walls
6.0
6 m(Substructure)
m
C$364.63
C$2,767.51
C$2,187.75 +15% C$328.16+10% C$251.59
Labor Materials Equipment
Type
Resource
Qty
Unit
Unit Price
Cost
Worker Category 1
0.70
hrs
C$30.80
C$21.70
Electricity
0.14
kWh
C$1.55
C$0.19
Steel frame mounting dowels, diameter 10 mm, length 130 (132) mm
1.26
10 pcs
C$25.32
C$31.89
Self-tapping steel screws with a semi-circular head and a cross-shaped slot, drill tip, diameter PU.RI mm, length 16 mm
0.25
100 pcs
C$9.15
C$2.29
Polyamide joint protection ring for handrails with a diameter of 50 mm, with an aluminum base RI.RI mm thick, PVC profile thickness 2 mm, outer diameter 56 mm, width 16 mm, thickness 3 mm
1.80
pcs
C$67.89
C$122.18
Polyamide bracket for wall mounting a handrail with a diameter of 50 mm with an aluminum base RI.RI mm thick, PVC profile thickness 2 mm, dimensions 75x61x50 mm
12.60
pcs
C$159.46
C$2,009.20
Personnel: 1 person-hour/machine-hour
0.00
Machine hours
C$15.56
C$0.01
Flatbed trucks, load capacity up to 5 tons
0.01
Machine hours
C$30.74
C$0.19
Personnel: 1 person-hour/machine-hour
0.01
Machine hours
C$17.51
C$0.10
▼Decking3 itemsC$791.66
#
Code
Description
Qty
Unit
Unit Price
Total
8
MEKA_KAME_KARITO_KAME
Laying of decking boards
30.0
30 m²(Decking)
m
C$12.94
C$491.24
C$388.33 +15% C$58.25+10% C$44.66
Labor Materials Equipment
Type
Resource
Qty
Unit
Unit Price
Cost
Worker Category 1
1.05
hrs
C$22.93
C$24.01
Mobile cranes, lifting capacity 16 t
0.02
Machine hours
C$66.29
C$1.59
Personnel: 1 person-hour/machine-hour
0.02
Machine hours
C$18.71
C$0.45
Flatbed trucks, load capacity up to 5 tons
0.01
Machine hours
C$25.74
C$0.31
Personnel: 1 person-hour/machine-hour
0.01
Machine hours
C$13.93
C$0.16
Laying of decking boards
30.00
m
C$12.06
C$361.81
9
NESA_KARI_KAMERI_KAPU
Inspecting repaired heating devices when filling the system with water
1.0
1 set(Decking)
pcs
C$5.66
C$7.16
C$5.66 +15% C$0.85+10% C$0.65
Labor Materials Equipment
Type
Resource
Qty
Unit
Unit Price
Cost
Average workload TO.KA
0.24
hrs
C$23.89
C$5.66
10
SATO_KAME_KAKANE_KAME
Replacing individual boards of clean exterior wall cladding
22.0
22 m(Decking)
m
C$10.54
C$293.26
C$231.83 +15% C$34.77+10% C$26.66
Labor Materials Equipment
Type
Resource
Qty
Unit
Unit Price
Cost
Worker Category 1
7.00
hrs
C$24.56
C$172.07
Flatbed trucks, load capacity up to 5 tons
0.04
Machine hours
C$25.99
C$1.03
Personnel: 1 person-hour/machine-hour
0.04
Machine hours
C$14.32
C$0.56
Replacing individual boards of clean exterior wall cladding
22.00
m
C$2.64
C$58.17
▼Balustrade & Steps3 itemsC$7,424.95
#
Code
Description
Qty
Unit
Unit Price
Total
11
RILI_KADX_KAKAME_MEKA
Installation of composite railing: when fastening posts with two anchor bolts
15.0
15 m(Balustrade & Steps)
m
C$11.81
C$224.07
C$177.13 +15% C$26.57+10% C$20.37
Labor Materials Equipment
Type
Resource
Qty
Unit
Unit Price
Cost
Worker Category 1
5.11
hrs
C$24.72
C$126.24
Anchor bolt with steel friction wedging nut, with external thread M12, diameter 16 mm, length 180 mm
19.23
pcs
C$1.18
C$22.60
Two-component adhesive injection compound based on vinyl ester resin for heavy-duty anchor fastenings in concrete, operating temperature from -40 °C to +40 °C
0.34
l
C$76.01
C$26.11
Flatbed trucks, load capacity up to 6 tons, with crane-manipulator, load capacity 4 tons
0.03
Machine hours
C$43.85
C$1.38
Personnel: 1 person-hour/machine-hour
0.03
Machine hours
C$14.23
C$0.45
Mobile piston compressors with electric motor, pressure up to KA.NE MPa (6 atm), capacity up to KA.VOTO m3/min
0.50
Machine hours
C$0.69
C$0.35
12
TOSA_KAME_SAPUME_KARI
Installation of frames made of wooden posts and metal top rails made of special profiles (without tightening) in incline
8.0
8 pcs(Balustrade & Steps)
pcs
C$700.21
C$7,086.14
C$5,601.69 +15% C$840.25+10% C$644.19
Labor Materials Equipment
Type
Resource
Qty
Unit
Unit Price
Cost
Worker Category 1
29.12
hrs
C$25.12
C$731.45
Mine props made of coniferous wood (pine, fir), length KA.DX-PU m, diameter 7-24 cm
1.44
m3
C$3,380.76
C$4,868.24
Non-tipping mine cars, capacity RI.SA m3
4.02
Machine hours
C$0.50
C$2.00
13
SADX_KAME_KAMEME_KAME
Replacement of treads and risers in wooden staircases
1.0
1 set(Balustrade & Steps)
pcs
C$90.71
C$114.74
C$90.70 +15% C$13.61+10% C$10.43
Labor Materials Equipment
Type
Resource
Qty
Unit
Unit Price
Cost
Average workload TO.KA
3.03
hrs
C$23.84
C$72.23
Personnel: 1 person-hour/machine-hour
0.00
Machine hours
C$12.66
C$0.01
Flatbed trucks, load capacity up to 5 tons
0.01
Machine hours
C$25.79
C$0.30
Personnel: 1 person-hour/machine-hour
0.01
Machine hours
C$14.24
C$0.17
Replacement of treads and risers in wooden staircases
1.00
pcs
C$17.99
C$17.99
▼Finishing3 itemsC$5,872.95
#
Code
Description
Qty
Unit
Unit Price
Total
14
NESA_KAME_KAMEPU_KASA
Filling of cast iron sewer pipe sockets with cement cutting and removal of strands with a diameter of: 100 mm
1.0
1 pcs(Finishing)
pcs
C$7.73
C$9.78
C$7.73 +15% C$1.16+10% C$0.89
Labor Materials Equipment
Type
Resource
Qty
Unit
Unit Price
Cost
Worker Category 1
0.32
hrs
C$24.17
C$7.73
15
KAVO_KARI_TOVORI_KARIm
Linear LED lighting fixture, uncontrolled: when accessing from the roof using climbing equipment
6.0
6 pcs(Finishing)
pcs
C$680.07
C$5,161.70
C$4,080.39 +15% C$612.06+10% C$469.25
Labor Materials Equipment
Type
Resource
Qty
Unit
Unit Price
Cost
Grade 3 worker
53.82
hrs
C$23.51
C$1,265.05
Grade 4 worker
53.82
hrs
C$26.47
C$1,424.84
Grade 5 worker
35.40
hrs
C$30.42
C$1,076.78
Single-component silicone-based sealant, neutral
0.06
l
C$33.71
C$2.02
Flatbed trucks, load capacity up to 5 tons
7.92
Machine hours
C$25.31
C$200.49
Personnel: 1 person-hour/machine-hour
7.92
Machine hours
C$14.04
C$111.21
16
NENE_KAME_KARIRI_MEDX
Repair of a storm drain with extension of the neck onto support frames: 5 frames
1.0
1 set(Finishing)
pcs
C$554.52
C$701.47
C$554.52 +15% C$83.18+10% C$63.77
Labor Materials Equipment
Type
Resource
Qty
Unit
Unit Price
Cost
2nd grade worker
2.49
hrs
C$19.76
C$49.20
Grade 3 worker
6.38
hrs
C$21.57
C$137.65
Grade 4 worker
0.72
hrs
C$24.30
C$17.50
Portland cement without additives for general construction CEM 0 42.5N
0.01
t
C$29,383.12
C$293.71
Forklift trucks, load capacity 3 tons
0.05
Machine hours
C$21.06
C$1.06
Personnel: 1 person-hour/machine-hour
0.05
Machine hours
C$12.89
C$0.64
Flatbed trucks, load capacity up to 5 tons
0.03
Machine hours
C$25.96
C$0.78
Personnel: 1 person-hour/machine-hour
0.03
Machine hours
C$12.89
C$0.39
Mobile screw compressors with internal combustion engines, pressure up to KA.LI MPa (7 atm), capacity up to SA.PU m3/min
1.80
Machine hours
C$16.75
C$30.14
Personnel: 1 person-hour/machine-hour
1.80
Machine hours
C$12.89
C$23.20
Pneumatic jackhammers powered by mobile compressors
1.80
Machine hours
C$0.14
C$0.25
Cost Summary
Direct Cost
2763%
C$1,260,366.76
Overhead
+15%
C$189,055.02
Profit
+10%
C$144,942.19
Grand Total
C$45,608.48
Resource Summary
50 resourcesiAggregated materials, labor, and equipment needed for the entire project
Materials to Order (28)
Resource
Unit
Qty
Unit Price
Cost
Polyvinyl chloride bushings
100 pcs
1.28
C$7,490.11
C$9,587.34
Mine props made of coniferous wood (pine, fir), length KA.DX-PU m, dia
m3
1.44
C$3,380.72
C$4,868.24
Polyamide bracket for wall mounting a handrail with a diameter of 50 m
pcs
12.60
C$159.46
C$2,009.20
Round coniferous timber, unpeeled, length TO-NE.SA m, diameter 14-24 c
m3
2.71
C$594.65
C$1,612.69
Self-tapping steel screws with a semi-circular head and a straight slo
t
0.00
C$204,365.62
C$653.97
Expanding gypsum-clay cement
t
0.01
C$67,034.38
C$429.02
Laying of decking boards
m
30.00
C$12.06
C$361.81
Forgings from square billets, weight ME.SA-PU.SA kg
t
0.05
C$6,722.08
C$322.66
Portland cement without additives for general construction CEM 0 42.5N
t
0.01
C$29,371.00
C$293.71
KS-107 hook bolt
pcs
37.10
C$5.56
C$206.18
MA-0115 oil paint, mummy, iron minium
kg
0.83
C$191.80
C$159.58
Triangular hot-dip galvanized suspension, length 400 mm, dimensions of
pcs
2.06
C$67.26
C$138.55
Polyamide joint protection ring for handrails with a diameter of 50 mm
pcs
1.80
C$67.88
C$122.18
Single saddle for earring KS-008
pcs
2.06
C$56.31
C$115.99
Linen thread
kg
0.34
C$287.65
C$96.65
BNK-90/30 petroleum bitumen for roofing
t
0.32
C$250.72
C$80.23
Replacing individual boards of clean exterior wall cladding
m
22.00
C$2.64
C$58.17
RKK-350 roofing felt
m2
87.04
C$0.58
C$50.63
Steel frame mounting dowels, diameter 10 mm, length 130 (132) mm
10 pcs
1.26
C$25.31
C$31.89
Two-component adhesive injection compound based on vinyl ester resin f
l
0.34
C$76.01
C$26.11
Ready-mixed masonry mortar, cement, M100
m3
0.12
C$194.67
C$23.36
Anchor bolt with steel friction wedging nut, with external thread M12,
pcs
19.23
C$1.18
C$22.60
Earring Sr-PU.SA 075
pcs
2.06
C$9.11
C$18.77
Replacement of treads and risers in wooden staircases
pcs
1.00
C$17.99
C$17.99
KS-078 locks
100 pcs
0.02
C$188.50
C$3.77
Self-tapping steel screws with a semi-circular head and a cross-shaped
100 pcs
0.25
C$9.09
C$2.29
Single-component silicone-based sealant, neutral
l
0.06
C$33.67
C$2.02
Electricity
kWh
0.14
C$1.38
C$0.19
Grand Total
C$21,315.79
Labor Requirements (9)
Resource
Unit
Qty
Unit Price
Cost
Worker Category 1
hrs
342.13
C$28.37
C$9,706.94
Grade 4 worker
hrs
54.54
C$26.45
C$1,442.34
Grade 3 worker
hrs
60.20
C$23.30
C$1,402.70
Grade 5 worker
hrs
35.40
C$30.42
C$1,076.78
Personnel: 1 person-hour/machine-hour
Machine hours
11.93
C$14.19
C$169.22
Personnel: 2 man-hours/machine-hour
Machine hours
2.55
C$36.89
C$94.06
Average workload TO.KA
hrs
3.27
C$23.84
C$77.89
2nd grade worker
hrs
2.49
C$19.76
C$49.20
Personnel: 3 man-hours/machine-hours
Machine hours
0.00
C$109.38
C$0.35
Grand Total
C$14,019.48
Equipment Requirements (13)
Resource
Unit
Qty
Unit Price
Cost
Railcars for operation on a contact network with an insulated mounting
Machine hours
2.55
C$147.48
C$376.07
Flatbed trucks, load capacity up to 5 tons
Machine hours
9.30
C$25.74
C$239.37
Mobile cranes, lifting capacity 16 t
Machine hours
0.50
C$62.08
C$31.29
Mobile screw compressors with internal combustion engines, pressure up
Machine hours
1.80
C$16.74
C$30.14
Infrared heaters for soft roofs
Machine hours
10.56
C$2.00
C$21.15
Single-bucket electric walking excavators with dragline working equipm
Machine hours
0.00
C$4,706.25
C$15.06
Non-tipping mine cars, capacity RI.SA m3
Machine hours
4.02
C$0.50
C$2.00
Flatbed trucks, load capacity up to 6 tons, with crane-manipulator, lo
Machine hours
0.03
C$43.81
C$1.38
Forklift trucks, load capacity 3 tons
Machine hours
0.05
C$21.20
C$1.06
Single-mast hoists, load capacity up to 500 kg, lifting height 45 m
Machine hours
0.24
C$2.42
C$0.58
Mobile piston compressors with electric motor, pressure up to KA.NE MP
Machine hours
0.50
C$0.70
C$0.35
Pneumatic jackhammers powered by mobile compressors
Machine hours
1.80
C$0.14
C$0.25
Bulldozers, power 79 kW (108 hp)
Machine hours
0.00
C$50.00
C$0.16
Grand Total
C$718.86
Material Alternatives
iAlternative materials with approximate price difference. Percentages show material cost change relative to the current specification.
Reinforcement of rigid crossbars with cantilevered fixiC$483.26
Monte Carlo · 10KiMonte Carlo simulation (10,000 iterations) showing completion probability at different confidence levels
46days
P50
50% probability the project finishes within this timeframe. Median scenario based on Monte Carlo simulation.
51days
P80
80% probability — recommended planning basis. Accounts for common delays and uncertainties.
56days
P95
95% probability — conservative estimate. Covers nearly all risk scenarios including severe delays.
+9days
Buffer
Recommended time buffer to add to the deterministic schedule. Covers typical construction uncertainties.
Base Cost (P50)
C$45,608.48
Budget (P80)
C$50,625.41
Maximum (P95)
C$55,433.31
Contingency
+11.0%
Recommended cost reserve based on schedule risk analysis — C$5,016.93 Recommended Budget: C$50,625.41
Deterministic 42 days
P50 46 days
P80 51 days
P95 56 days
P50 P80 P95
Based on Monte Carlo simulation with 10,000 iterations using PERT distribution for each phase duration.
Peak: 6
513 man-hours
2 crit. phases
Cost Risk Analysis
Monte Carlo · 10,000 iterations
Monte Carlo simulation of construction cost uncertainty
Cost Percentiles
C$1,914,314.43
P10
C$1,967,697.52
P25
C$2,040,395.89
P50
C$2,147,302.42
P80
C$2,200,721.88
P90
Cumulative Probability (S-Curve)
+5.2%
Recommended Contingency (P80 − P50)
Reserve to cover likely cost overruns with 80% confidence — C$106,906.53
Top Risk Drivers
Category
Work Item
Risk Share
Substructure
Installation of replaceable cast iron pedestals us
100.0%
Preparation
Soil excavation using single-bucket electric dragl
0.0%
Preparation
Replacement: Compact toilets
0.0%
Preparation
Repairing a soft roofing membrane using an infrare
0.0%
Preparation
Leveling of crushed stone (gravel) beds underwater
0.0%
Substructure
Replacement of reinforced concrete pads at the bot
0.0%
Substructure
Installation of wooden posts under beams or joists
0.0%
Substructure
Reinforcement of rigid crossbars with cantilevered
0.0%
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
Overhead415% of total
±C$18,905.50±41.5%
Profit318% of total
±C$14,494.22±31.8%
Materials47% of total
±C$2,131.58±4.7%
Labor31% of total
±C$1,401.95±3.1%
Equipment2% of total
±C$71.89±0.2%
Cost Summary
iFinal cost breakdown with direct costs, overhead, profit, and grand total
Labor
C$14,019.46
31%
Materials
C$21,315.79
47%
Equipment
C$718.87
2%
Direct Cost
C$1,260,366.76
Overhead
C$189,055.02
415%
Profit
C$144,942.19
318%
Grand Total
C$45,608.48
100%
EUR equivalent
€28.451,95
USD equivalent
$32,790.88
GBP equivalent
£24,825.18
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 33,844 EUR/m²
Significantly above range · 13.54x ratio to typical
Methodology & Assumptions
iCalculation methodology, data sources, and key assumptions underlying this estimate
Data Source
DDC Pricing DB — English
Confidence Level
50%
Overhead Rate
15%
Profit Rate
10%
Items Matched
16
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
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 18 verified work items from our database of 55,719 construction prices.
What work items are included in this estimate?
This BOQ includes 18 work items covering Preparation, Substructure, Decking, Balustrade & Steps, Finishing. Each item is matched to unit rates from our verified pricing database spanning 9 languages and 36 locations worldwide.
How long does Terrace / Deck Construction take?
Duration depends on project size and complexity. A typical 30 m² project takes approximately 3 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 terrace / deck construction include?
Cost estimate for building a 30 m² outdoor terrace or deck. Includes substructure (concrete footings or adjustable pedestals), composite or hardwood decking boards, railing system, built-in seating, LED deck lighting, waterproofing membrane (for above-structure terraces), and staircase. Designed for residential outdoor living.