03 Material Takeoff.pdf

7/27/2019 03 Material Takeoff.pdf

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Material Takeoff

COSC 621

5 th Project2nd Project 3 rd Project 4 th Project1st Project

Where are we?

WorkPackages

MaterialTakeoff

CriticalPath

ActivityNetwork

ConstructionMethodDrawings

Contingency Analysis

ActivityTime & Cost

Cash FlowProfile

TotalProject Cost

TotalProject Time


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Project Scope Definition

z Generalz Size of plant capacityz Process units to be includedz Type of plant feedstockz Products to be made, initial and futurez Should plant be designed for minimum investmentz Horizontal vs. stacked arrangement of equipmentz Layout and provisions for future expansionz Any special relationships (e.g. involvements of

other companies)


z Site Informationz Access to transportation; air, waterway, highway, railwayz Access to utilities; water, sewer, electrical, fire protectionz Climate conditions; moisture, temperature, windz Soil conditions; surface, subsurface, bearing capacityz Terrain; special precautions for adjacent propertyz Acquisition of land; purchase, lease, expansion potentialz Space available for construction


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z Buildingsz Number, types, and size of eachz Occupancy; number of people, offices,

laboratoriesz Intended usage; offices, conferences, storage,

equipmentz Special heating and cooling requirementsz Quality of finish work and furnishingsz Landscaping requirementsz Parking requirements


z Regulatory Requirementsz Permits; construction, operation, environmental,

municipalz Regulations and codes; local, state, federalz Safety; detection systems, fires, emergency

power z Environmental; air liquids, solids, wetlandsz Preservations restrictions


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Owners Needs and ProjectObjectives

z What is needed vs. What is wantedz Without constraints of cost and schedule, focus

easily shifts from what is needed to what is wanted.z An optimization of quantity, quality, cost, and

schedule.z Vague owners needs lead to project changes,

scope growth, cost overruns, rework, andmisunderstandings among team members

Project Breakdownz Production activities

z Activities that involve the use of resources such as labor,material, equipment, or subcontractors

z Procurement activitiesz Activities that specify the time needed to procure for materials

and/or manufacture equipment that are needed for anyproduction activity

z Management decision activitiesz Activities that are related to management decisions such as

special delays or approvalsz Hammock activities

z Activities that depend on other activities and are not needed for themselves, eg. Dewatering that is required as long asexcavation is progressing

z Dummy activities


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Project Breakdown

z Master Format of CSI (ConstructionSpecifications Institute) for buildingconstruction

Division 1: General RequirementsDivision 2: Site WorkDivision 3: ConcreteDivision 4: Masonry

Division 5: MetalsDivision 6: Wood and PlasticsDivision 7: Thermal Moisture ProtectionDivision 8: Doors and Windows

Division 9: FinishesDivision 10: SpecialtiesDivision 11: EquipmentDivision 12: Furnishings

Division 13: Special ConstructionDivision 14: Conveying SystemsDivision 15: MechanicalDivision 16: Electrical

Division 1: General Requirementsz 01010 Summary of Workz 01020 Allowancesz 01030 Special Project

Proceduresz 01040 Coordinationz 01050 Field Engineeringz 01060 Regulatory

Requirementsz 01070 Abbreviations and

Symbolsz 01080 Identification Systemsz 01100 Alternates/Alternatives

z 01150 Measurement andPayment

z 01200 Project Meetingsz 01300 Submittalsz 01400 Quality Controlz 01500 Construction Facilities

and Temporary Controlsz 01600 Material and Equipmentz 01650 Starting of Systemsz 01660 Testing, Adjusting, and

Balancing of Systemsz 01700 Contract Closeoutz 01800 Maintenance


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Division 2 Site Workz 02010 Subsurface

Investigationz 02050 Demolitionz 02110 Site Preparationz 02140 Dewateringz 02150 Shoring and

Underpinningz 02160 Excavation Support

Systemsz 02170 Cofferdamsz 02200 Earthworkz 02300 Tunnelingz 02350 Piles and Caissonsz 02450 Railroad Work

z 02480 Marine workz 02500 Paving and Surfacingz 02600 Piped Utility Materialsz 02660 Water Distributionz 02680 Fuel Distributionz 02700 Sewage and Drainagez 02760 Restoration of

Underground Pipelinesz 02770 Ponds and Reservoirsz 02780 Power and

Communicationsz 02800 Site Improvementsz 02900 Landscaping

Division 3 - Concretez 03100 Concrete Formworkz 03200 Concrete Reinforcementz 03250 Concrete Accessoriesz 03300 Cast-in-Place Concretez 03370 Concrete Curingz 03400 Precast Concretez 03500 Cementitious Decksz 03600 Groutz 03700 Concrete Restoration and Cleaningz 03800 Mass Concrete


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Division 4 - Masonry

z 04110 Mortar z 04150 Masonry Accessoriesz 04200 Unit Masonryz 04400 Stonez 04500 Masonry Restoration and Cleaningz 04550 Refractoriesz 04600 Corrosion Resistant Masonry

Division 5 - Metalsz 05010 Metal Materialsz 05030 Metal Finishesz 05050 Metal Fasteningz 05100 Structural Metal Framingz 05200 Metal Joistsz 05300 Metal Deckingz 05400 Cold-Formed Metal Framingz 05500 Metal Fabricationsz 05580 Sheet Metal Fabricationsz 05700 Ornamental Metalz 05800 Expansion Controlz 05900 Hydraulic Structures


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Division 8 Door andWindowsz 08100 Metal Doors and Framesz 08200 Wood and Plastic Doorsz 08250 Door Opening and Assemblesz 08300 Special Doorsz 08400 Entrances and Storefrontsz 08500 Metal Windowsz 08600 Wood and Plastic Windowsz 08650 Special Windowsz 08700 Hardwarez 08800 Glazingz 08900 Glazed Curtain Walls

Division 9 - Finishesz 09100 Metal Support

Systemsz 09200 Lathe and Plaster z 09230 Aggregate Coatingsz 09250 Gypsum boardz 09300 Tilez 09400 Terrazzoz 09500 Acoustical

Treatmentz 09540 Special Surfacesz 09550 Wood Flooring

z 09600 Stone Flooringz 09630 Unit Masonry

Flooringz 09650 Resilient Flooringz 09680 Carpetz 09700 Special Flooringz 09780 Floor Treatmentz 09800 Special Coatingsz 09900 Paintingz 09950 Wall Coverings


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Division 10 - Specialtiesz 10100 Chalkboards and Tack

Boardsz 10150 Compartments and

Cubiclesz 10200 Louvers and Ventsz 10240 Grilles and Screensz 10250 Service Wall Systemsz 10260 Wall and Corner Guardsz 10270 Access Flooringz 10280 Specialty Modulesz 10290 Pest Controlz 10300 Fireplaces and Stovesz 10340 Prefabricated Exterior

Specialtiesz 10350 Flagpoles

z 10400 Identifying Devicesz 10460 Pedestrian Control Devicesz 10500 Lockersz 10520 Fire Protection Specialtiesz 10530 Protective Coversz 10550 Postal Specialtiesz 10600 Partitionsz 10650 Operable Partitionsz 10670 Storage Shelvingz 10700 Exterior Sun Control

Devicesz 10750 Telephone Specialtiesz 10800 Scalesz 10900 Wardrobe and Closet

Specialties

Division 11 - Equipmentz 11010 Maintenance Equipmentz 11020 Security and Vault Equipmentz 11030 Teller and Service Equipmentz 11040 Ecclesiastical Equipmentz 11050 Library Equipmentz 11060 Theater and Stage Equipmentz 11070 Instrumental Equipmentz 11080 Registration Equipmentz 11090 Checkroom Equipmentz 11100 Mercantile Equipmentz 11110 Commercial Landry and Dry Cleaning

Equipmentz 11120 Vending Equipmentz 11130 Audio-Visual Equipmentz 11140 Service Station Equipmentz 11150 Parking Control Equipmentz 11160 Loading Dock Equipmentz 11170 Solid Waste Handling Equipment

z 11190 Detention Equipmentz 11200 Water Supply and Treatment

Equipmentz 11280 Hydraulic Gates and Valvesz 11300 Fluid Waste Treatment and Disposal

Equipmentz 11400 Food Service Equipmentz 11450 Residential Equipmentz 11460 Unit Kitchensz 11470 Darkroom Equipmentz 11480 Athletic, Recreational and

Therapeutic Equipmentz 11500 Industrial and Process Equipmentz 11600 Laboratory Equipmentz 11650 Observatory Equipmentz 11700 Medical Equipmentz 11780 Mortuary Equipmentz 11850 Navigation Equipment


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Division 12 - Furnishings

z 12050 Fabricsz 12100 Artworkz 12300 Manufactured Caseworkz 12500 Window Treatmentz 12600 Furniture and Accessoriesz 12670 Rugs and Matsz 12700 Multiple Seatingz 12800 Interior Plants and Planters

Division 13 Special Constructionz 13010 Air Supported Structuresz 13020 Integrated Assemblesz 13030 Special Purpose Roomsz

13080 Sound, Vibration, andSeismic Controlz 13090 Radiation Protectionz 13100 Nuclear Reactor z 13120 Pre-Engineered Structuresz 13150 Poolsz 13160 Kennels and Animal

Sheltersz 13180 Site Constructed

Incineratorsz 13200 Liquid and Gas Storage

Tanksz 13220 Filter Underdrains and

Media

z 13230 Digestion Tank Covers and Appurtenances

z 13240 Oxygenation Systemsz 13260 Sludge Conditioning

Systemsz 13300 Utility Control Systemsz 13400 Industrial and Process

Control Systemsz 13500 Recording Instrumentationz 13550 Transportation Control

Instrumentationz 13600 Solar Energy Systemsz 13700 Wind Energy Systemsz 13800 Building Automation

Systemsz 13900 Fire Suppression and

Supervisory System


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Division 14 Conveying Systems

z 14100 Dumbwaitersz 14200 Elevatorsz 14300 Moving Stairs and Walksz 14400 Liftsz 14500 Material Handling Systemsz 14600 Hoists and Cranesz 14700 Turntablesz 14800 Scaffoldingz 14900 Transportation Systems

Division 15 - Mechanicalz 15050 Basic Mechanical Materials and Methodsz 15250 Mechanical Insulationz 15300 Fire Protectionz 15400 Plumbingz 15500 Heating, Ventilating, and Air Conditioning (HVAC)z 15550 Heat Generationz 15650 Refrigerationz 15750 Heat Transfer z 15850 Air Handlingz 15880 air Distributionz 15950 Controlsz 15990 Testing, Adjusting, and Balancing


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Division 16 - Electricalz 16050 Basic Electrical Materials and Methodsz 16200 Power Generationz 16300 High Voltage Distribution (Above 600-Volt)z 16400 Service and Distribution (600-Vlot and Below)z 16500 Lightingz 16600 Special Systemsz 16700 Communicationsz 16850 Electric Resistance Heatingz 16900 Controlsz 16950 Testing

Project BreakdownProject

Area 2 Area 1 Area 3

PlaceReinforcement

InstallFramework

Pour Concrete

ColumnsBeams Slabs

P r o

j e c t

M a n a g e r

G e n e r a

l

C o n

t r a c t o r

S u

b c o n

t r a c t o r

A

S u

b c o n

t r a c t o r

B

C i v i l

S u p e r i n

t e n

d e n

t

M e c h a n

i c a

l

S u p e r i n

t e n

d e n

t

E l e c t r i c a

l

S u p e r i n

t e n

d e n t

R e

b a r

F o r e m a n

F o r m w o r k

F o r e m a n

C o n c r e

t e

F o r e m a n

Control Account

Project-Work package-Task-Resource-OBS level Activity Code: 011-0311380550-001-1FLA1-GFF Activity: Install Column Formwork Area 2Responsibility: General Contractors Formwork ForemanQuantity: 1200 sq.m

Estimated Duration: 5 daysEstimated Cost: $1200Expected Crew Productivity: 20 sq.m/hr Material: Prefabricated Column Forms = 1200 sq.m

WBS

OBS


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RS MeansBuilding Construction Cost Data

z Division Number/Titlez (033/Cast-in-Place Concrete)

z Line Numbersz Each unit price line item has been assigned a

unique 10-digit code based on the 5-digit CSIMaster Format classification.

033 130 0300

Master FormatDivision

MeansSubdivision

MeansMajor Classification

MeansIndividualLine Number

Master FormatMedium scope

RS MeansBuilding Construction Cost Data

z Descriptionz (Concrete in Place, etc.)

z Reference Number Informationz R033-010

z Crewz 2 Carp: if an installation can be accomplished by

one trade and requires no power equipmentz C-14A: if an installation requires a composite crew


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Crew

29.90

26.55

3.35

BareCosts

44.8041.6551.1532.5037.9041.90

Hr.

28.4526.4529.4520.6525.4027.55

Hr.

46.119,221.805,979.60200 L.H., Daily Totals

42.42

3.69

358.405,331.201,636.80

520.00303.20335.20

40.90696.10

227.603,385.60

942.40330.40203.20220.40

37.20632.80

1 Carpenter Foreman (out)16 Carpenters4 Rodmen (reinf.)2 Laborers1 Cement Finisher 1 Equip. Oper. (med)

1 Gas Engine Vibrator 1 Concrete Pump (small)

Incl.O&P

DailyDailyCrew C-14A

Cost Per Labor-Hour

Incl. Subs O&P ($)Bare Costs ($)Crew No.

Productivity: Daily Output

Hours-Labor 1280Hours/C.Y.-Labor 12.804C.Y.100

Hours-Labor

DaysCrew6.40DayC.Y./Crew15.62C.Y.100

OutputDaily

=

=


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Earth Workz Estimation of earthwork one of the most difficult

portions of the estimators workz Computation of quantity to be excavated or banked

may be easyz Figuring the cost for earthwork is difficult because of

the various hidden items that may affect the cost.z Slopez

Bracing or sheet-pilingz Dewatering

Specificationsz What is the extent of work covered?z What happens to the excess excavated material?z

Can it be left on the site or must it be removed?z If the excess must be removed, how far must it be hauled?z Who does the clearing and grubbing?z Who removes trees?z Must the topsoil be stockpiled for future use? Where?z Who is responsible for any trenching required for the electrical

and mechanical trades?


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Soil

z Type of soilz Soil boringsz Site visitation

z Investigate the soil conditionz Long-handled shovel or post-hole digger

Swell and Compaction

85%40 to 60%Solid Rock

90 to 100%20 to 35%Dense Clay

90 to 100%15 to 25%Loam

95 to 100%10 to 18%Sand and GravelShrinkageSwellMaterial

Percentage of Swell & Shrinkage

Swell: % gained above the original volume

Shrinkage: % reduced from the original volume


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Determining Swell and Haulz If 1,000 bank cubic yards (in place at natural density) of dense

clay (30 percent swell) needs to be hauled away, how manycubic yards would have to be hauled away by truck?

Cubic yards of haul = 1,000 cy x 1.3= 1,300 cy

z If 7 cy dump trucks will be used to haul this material away, howmany loads would be required?

Loads = 1,300 cy / 7 cy/load= 186 loads

Determining Shrinkage and Haul

z If 500 cy in-place of sand/gravel is required, howmany loads would be required?

Required cy = 500 in-place cy / .95= 526 cy

z If the 7 cy dump truck is used, how many loadswould be required?

Loads = 526 cy / 7 cy/load= 75 loads


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Earth Work

z Requires cutting and filling to reshape thegradez Cut and fill quantities be kept separate

z to see if the available cut material can be used for fill.z to estimate the amount of effort required to convert the

cut material into fill material.z

What type of hauling equipment will be used?z Need for compaction equipment?

Sample Site Plan

z Contour line and spotelevations

z Contour lines connectpoints of equalelevation.

z Existing elevations -dashed contour lines

z Proposed newelevations - solid lines


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Cross-Section Methodz Dividing the site into a grid

and determining the cut of fill for each of the girds

z Size of the gird is a functionof z Sitez Required changesz Required level of accuracy

z The smaller the grid, themore accurate the quantitytakeoff.

Cross-Section Method

z Determine the approximate current andplanned elevation for each grid lineintersectionz Contour lines rarely cross the grid intersections

Estimation is neededz Fill: Proposed elevation > Current elevationz Cutting: Planned elevation < Current elevation.


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Labeling Convention

Current ElevationProposed Elevation

Cut Fill


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Fill Volume of Grid 13

1.8103.2105.0G3

0.4103.6104.0F3

1.5103.0104.5G2

1.3103.6104.9F2

Fill (ft.)ExistingElevation

PlannedElevation

Point

cf

sf Fill

125,3

500,24

'8.1'4.0'5.1'3.1

=

+++

=

Cut Volume of Grid 40

0.0104.2104.2F7

0.0103.6103.6E7

0.8104.8104.0F6

0.1104.1104.0E6

Cut (ft.)ExistingElevation

PlannedElevation

Point

cf

sf Cut

563

500,24

'0.0'0.0'8.0'1.0

=

+++

=


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Cut and Fill in the Same Gridz Total change in elevation (C-D)

=.3 +.7 = 1.0 change in elevation

z Change in elevation per foot of run(C-D)

= 1.0 / 50 = .02 per foot of run

z How many feet must be movedalong the line until there has been a.3-foot chane in elevation?

.3 / .02 per foot of run= 15


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Estimate Work Sheet

1,18825000.47540.80.10.50.54

1,071Net Cubic Yards to Purchase

345Cubic Yards of Cut to Haul1,416Required Cubic Yards of Fill

0.25Swell Factor 0.95Shrinkage Factor

276Cubic Yards1,345Cubic Yards

7,453Total Cut Cubic Feet36,317Total Fill Cubic Feet

3,12525001.2541.80.41.51.336642212.50.350.30.8000.767287.50.23330.7002

35014000.2540.300.7019311000.175400.400.31

Total Area Ave.Pnts54321

Total Area Ave.Pnts54321

Cut at IntersectionsFill at Intersections

CutFill

Grid

Documents

03 Material Takeoff.pdf