ACEC 316 – Construction Management - Spring 2009 Dr. Christos Anastasiou

HOMEWORK 1 - Gantt Charts (Due: March 17, 2009)

INSTRUCTIONS: For the list of activities regarding the construction of a house (given in the table below), prepare a Gantt Chart that will help in the organization of the aforementioned project. Your deliverables should include a series of Gantt-type charts, as well as a cover page that should briefly outline this project (the last page of this document provides an example of how I expect this chart to look like). Make sure that you hand in the following: 1) a print-out of your work, 2) your Excel file via email. NOTE: The file name and the subject of the email should be “ACEC316 – HW1 – YOUR NAME”

Developing a Construction Schedule If you are building or remodeling a home, you will be confronted with the challenging task of scheduling several contractors. Unfortunately, construction is not a smooth process with definitive completion dates. Each construction project is unique in its process, scope of work, and goals. Because of this, you will need to analyze your project before it starts and develop a construction schedule. Before beginning, understand your plan must be flexible. If you are building a home from scratch, you may run into delays in receiving your permit. This has a domino effect that pushes out the start dates of every contractor. If you have hired a General Contractor to build or remodel your home, there may be scheduling conflicts with other projects. If this is the case, you will need to work directly with the builder on getting back on track. For the purpose of this exercise, it will be assumed you are hiring the contractors yourself and controlling the scheduling. Construction projects work through the following process: 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16.

Home plan design Permitting process (including review, changes, and final approval) Establishing temporary power to the site (so contractors can run their tools) Site work Foundation Framing Roofing Installation of windows and doors Siding Rough mechanicals including plumbing, electrical and HVAC Insulation Drywall Painting Interior trim and other finish work Flooring Cabinets and countertops

1

As you can see, there are potentially 16 contractors that you will have to work with during the construction of a home. All of them will have numerous jobs in addition to yours. Products will arrive on site that are wrong or need to be switched out. Weather will hamper your efforts and make a contractor's job more difficult. So, how does one assemble any sort of construction schedule that will work? It begins with setting a deadline for completion. Typically, it takes between 10-12 months for someone to complete construction of a home. The more custom a home is, the longer it will take. Your particular project may be completed in six months, but the more detailed the plan or difficult the building lot, the more time it will take. After setting a deadline for completion, select the contractors you would like to hire. Many processes will be involved in choosing the right contractor, but through a process of elimination, you can select a handful of builders. With the handful of contractors selected, you can then plan your construction project according to their schedules. For example, there may be two framers of equal ability and reputation, but one can start next week and the other in five weeks. Knowing this can help you can make an informed decision on which one will fit into the schedule. Speak with all the contractors you have selected and make sure they understand your schedule. If you find that one or several are not willing to work within your time frame, search for another contractor. In construction, time is money and unnecessary waiting costs you time. The other key ingredient to scheduling is being able to multi-task. As each phase of construction progresses, you will need to schedule another contractor (and sometimes several at the same time). For example, while the rough framing is being completed, you will want to call the plumber and electrician to perform their duties. While the plumber and electrician are working, you should contact the insulation and drywall installers. Stay one step ahead of the contractors working for you. Below is a flowchart showing a typical scheduling path: • • • • • • •

During the permitting phase, schedule site work contractors. During site work, schedule foundation and framing contractors. When framing has started, contact mechanical contractors to start their "rough" phases. As framing approaches completion, schedule roofer and sider. As mechanical contractors are finishing their work, contact insulation and drywall contractors. When drywall is complete, schedule finish carpenter to install doors, mouldings, etc. Upon completion, schedule interior painter.

The final phases of your project will involve installing cabinets, countertops and flooring materials. Often times, these trades are performed very closely to each other. Do not be afraid to put contractors in touch with each other! Time is money to them too, and any coordination they can do between themselves makes everyone happy. Remember, a construction schedule is highly complex and filled with variables. This process cannot be mastered, but it can be controlled. This begins with setting goals and scheduling contractors beforehand (like assembling a puzzle). However, by understanding the general scheduling path, you can gain a better understanding of the way in which phases are completed.

2

Project Name: Custom House Construction Company Name: Christos's Construction Company Project Start: 12-May-2004 Project Finish: 27-Apr-2005

Task Name

Duration

Contracts

Start

Finish

12-May-2004

12-May-2004

Precedents

Supply Lot Sale Agreement

0 days

12-May-2004

12-May-2004

Supply Construction Agreement

0 days

12-May-2004

12-May-2004

Supply Contract Plans

0 days

12-May-2004

12-May-2004

Supply Construction Agreement

Supply Contract Specifications

0 days

12-May-2004

12-May-2004

Supply Construction Agreement

Supply Contract Site Plan 0 days

12-May-2004

12-May-2004

Supply Construction Agreement

Secure Financing

0 days

12-May-2004

12-May-2004

Construction Loan Settlement

0 days

12-May-2004

12-May-2004

12-May-2004

16-Jun-2004

Document Review & Revision

Secure Financing

Review & Finalize Plans

15 days

12-May-2004

02-Jun-2004

Supply Contract Plans, Supply Lot Sale Agreement, Supply Construction Agreement, Supply Contract Specifications, Supply Contract Site Plan, Construction Loan Settlement

Review & Finalize Specifications

20 days

12-May-2004

09-Jun-2004

Supply Contract Specifications

Review & Finalize Site Plan

1 day

02-Jun-2004

03-Jun-2004

Supply Contract Site Plan, Review & Finalize Plans

Print Construction Drawings

5 days

09-Jun-2004

16-Jun-2004

Review & Finalize Plans, Review & Finalize Specifications, Review & Finalize Site Plan

Approve Revised Plans

0 days

16-Jun-2004

16-Jun-2004

Print Construction Drawings

Approve Revised Specifications

0 days

16-Jun-2004

16-Jun-2004

Print Construction Drawings

Approve Revised Site Plan

0 days

16-Jun-2004

16-Jun-2004

Print Construction Drawings

16-Jun-2004

20-Jul-2004

Bids & Contracts Make Copies of Plans

3 days

16-Jun-2004

21-Jun-2004

Approve Revised Plans, Print Construction Drawings

Make Copies of Specifications

2 days

16-Jun-2004

18-Jun-2004

Approve Revised Specifications

Distribute Plans &

1 day

21-Jun-2004

22-Jun-2004

Make Copies of Plans, Make Copies of

3

Specifications

Specifications

Receive Bids

10 days

22-Jun-2004

06-Jul-2004

Distribute Plans & Specifications

Review Bids

5 days

06-Jul-2004

13-Jul-2004

Receive Bids

Execute Subcontractor Agreements

5 days

13-Jul-2004

20-Jul-2004

Review Bids

16-Jun-2004

02-Aug-2004

Grading & Building Permits Schedule lot stake-out

1 day

16-Jun-2004

17-Jun-2004

Print Construction Drawings

Stake lot

1 day

21-Jun-2004

22-Jun-2004

Schedule lot stake-out

File Grading Permit Application

1 day

16-Jun-2004

17-Jun-2004

Approve Revised Site Plan

File Building Permit Application

3 days

16-Jun-2004

21-Jun-2004

Approve Revised Plans, Approve Revised Specifications, Approve Revised Site Plan

Post Lot Identification

1 day

22-Jun-2004

23-Jun-2004

Stake lot, File Grading Permit Application, File Building Permit Application

Meet Sed. Control Insp.

1 day

23-Jun-2004

24-Jun-2004

File Grading Permit Application, Stake lot, Post Lot Identification

Walk Lot w/ Owner

1 day

20-Jul-2004

21-Jul-2004

Meet Sed. Control Insp., Execute Subcontractor Agreements

Install Construction Entrance

1 day

21-Jul-2004

22-Jul-2004

Meet Sed. Control Insp., Walk Lot w/ Owner

Install Sediment Controls 2 days

21-Jul-2004

23-Jul-2004

Meet Sed. Control Insp., Walk Lot w/ Owner

Sediment Control Insp.

1 day

23-Jul-2004

26-Jul-2004

Install Construction Entrance, Install Sediment Controls

Grading Permit Issued

1 day

26-Jul-2004

27-Jul-2004

Sediment Control Insp.

Municipal Permit Process 10 days

21-Jun-2004

05-Jul-2004

File Building Permit Application, File Grading Permit Application

Building Permit Approved

1 day

27-Jul-2004

28-Jul-2004

Municipal Permit Process, Grading Permit Issued

Pay Permit Fees and Taxes

1 day

30-Jul-2004

02-Aug-2004

Building Permit Approved

Building Permit Issued

0 days

02-Aug-2004

02-Aug-2004

Pay Permit Fees and Taxes

27-Jul-2004

09-Aug-2004

27-Jul-2004

30-Jul-2004

Grading Permit Issued

Strip Topsoil & Stockpile 1 day

02-Aug-2004

03-Aug-2004

Clear Lot, Building Permit Issued

Stake Lot for Excavation

1 day

03-Aug-2004

04-Aug-2004

Clear Lot, Strip Topsoil & Stockpile

Rough grade lot

1 day

04-Aug-2004

05-Aug-2004

Clear Lot, Stake Lot for Excavation

Excavate for foundation

2 days

05-Aug-2004

09-Aug-2004

Building Permit Approved, Stake Lot for Excavation, Clear Lot, Rough grade lot

09-Aug-2004

10-Sep-2004

09-Aug-2004

10-Aug-2004

Site Work Clear Lot

3 days

Foundation Layout footings

1 day

4

Excavate for foundation

Dig Footings & Install Reinforcing

1 day

10-Aug-2004

11-Aug-2004

Layout footings

Footing Inspection

0 days

11-Aug-2004

11-Aug-2004

Dig Footings & Install Reinforcing

Pour footings

1 day

11-Aug-2004

12-Aug-2004

Footing Inspection

Pin Footings

1 day

12-Aug-2004

13-Aug-2004

Pour footings

Stock Block, Mortar, Sand

1 day

13-Aug-2004

16-Aug-2004

Pin Footings

Build Block Foundation

15 days

16-Aug-2004

06-Sep-2004

Pin Footings, Stock Block, Mortar, Sand, Footing Inspection

Foundation Certification

0 days

06-Sep-2004

06-Sep-2004

Build Block Foundation

Fill Block Cores w/ Concrete

1 day

06-Sep-2004

07-Sep-2004

Build Block Foundation, Foundation Certification

Steel Delivery

1 day

07-Sep-2004

08-Sep-2004

Fill Block Cores w/ Concrete

Set Lintels, Bolts, Cap Block

2 days

08-Sep-2004

10-Sep-2004

Steel Delivery

Lumber Delivery

1 day

07-Sep-2004

08-Sep-2004

Fill Block Cores w/ Concrete, Stake Lot for Excavation

Waterproofing and Drain Tile

1 day

08-Sep-2004

09-Sep-2004

Lumber Delivery

10-Sep-2004

27-Oct-2004

Rough Carpentry Set Steel

1 day

10-Sep-2004

13-Sep-2004

Set Lintels, Bolts, Cap Block, Lumber Delivery

1st Floor Deck Framing

4 days

13-Sep-2004

17-Sep-2004

Set Steel

1st Floor Wall Framing

4 days

17-Sep-2004

23-Sep-2004

1st Floor Deck Framing

2nd Floor Deck Framing

2 days

23-Sep-2004

27-Sep-2004

1st Floor Wall Framing

2nd Floor Wall Framing

3 days

27-Sep-2004

30-Sep-2004

2nd Floor Deck Framing

Set Roof Trusses

2 days

30-Sep-2004

04-Oct-2004

2nd Floor Wall Framing

Frame Roof

7 days

04-Oct-2004

13-Oct-2004

Set Roof Trusses

Install Roof Plywood

5 days

13-Oct-2004

20-Oct-2004

Frame Roof

Install Windows & Doors 2 days

25-Oct-2004

27-Oct-2004

Install Roof Plywood, Roofing Paper Installed

Frame Basement

21-Oct-2004

26-Oct-2004

Frame Roof, Pour Basement Slab

14-Oct-2004

26-Oct-2004

3 days

Concrete Slabs Basement Slab Preparation

2 days

14-Oct-2004

18-Oct-2004

1st Floor Deck Framing, Plumbing Sub-slab, Waterproofing and Drain Tile, HVAC Layout & Measure

Termite Treatment Basement Slab

1 day

18-Oct-2004

19-Oct-2004

Basement Slab Preparation

Slab Inspection

1 day

19-Oct-2004

20-Oct-2004

Termite Treatment Basement Slab

Pour Basement Slab

1 day

20-Oct-2004

21-Oct-2004

Slab Inspection

Prep Garage Slab

1 day

21-Oct-2004

22-Oct-2004

Pour Basement Slab

Termite Treatment

1 day

22-Oct-2004

25-Oct-2004

Prep Garage Slab

5

Garage Slab Pour Garage Slab

1 day

H.V.A.C.

25-Oct-2004

26-Oct-2004

13-Oct-2004

04-Nov-2004

Termite Treatment Garage Slab

HVAC Layout & Measure

1 day

13-Oct-2004

14-Oct-2004

Frame Roof

HVAC Rough-in

5 days

25-Oct-2004

01-Nov-2004

HVAC Layout & Measure, Roofing Paper Installed

HVAC Set Indoor Units

2 days

01-Nov-2004

03-Nov-2004

Pour Basement Slab, HVAC Rough-in

HVAC Temporary Heat

2 days

02-Nov-2004

04-Nov-2004

Install Electric Service Panel

17-Sep-2004

09-Nov-2004

Plumbing Rough-in Plumbing Sub-slab

2 days

17-Sep-2004

21-Sep-2004

1st Floor Deck Framing

Plumbing Layout

1 day

01-Nov-2004

02-Nov-2004

Plumbing Sub-slab, HVAC Rough-in

Plumbing rough-in

5 days

02-Nov-2004

09-Nov-2004

Plumbing Layout, Municipal Plumbing Sub-slab Inspection

Municipal Plumbing Sub0 days slab Inspection

21-Sep-2004

21-Sep-2004

Plumbing Sub-slab

Municipal Plumbing Rough-in Inspection

09-Nov-2004

09-Nov-2004

Plumbing rough-in

27-Oct-2004

23-Nov-2004

0 days

Electric Rough-in Set Electric Boxes

2 days

27-Oct-2004

29-Oct-2004

Install Windows & Doors

Install Electric Service Panel

2 days

29-Oct-2004

02-Nov-2004

Set Electric Boxes

Electrical Walk-through

1 day

02-Nov-2004

03-Nov-2004

Install Electric Service Panel

Electrical Rough-wire

14 days

03-Nov-2004

23-Nov-2004

Electrical Walk-through

23-Nov-2004

07-Dec-2004

Specialty Rough-ins Central Vacuum Roughin

5 days

23-Nov-2004

30-Nov-2004

Electrical Rough-wire

Alarm System Rough-in

5 days

23-Nov-2004

30-Nov-2004

Electrical Rough-wire

Telephone System Rough-in

5 days

23-Nov-2004

30-Nov-2004

Electrical Rough-wire

Television System Rough-in

5 days

30-Nov-2004

07-Dec-2004

Telephone System Rough-in

Audio Visual Rough-in

5 days

23-Nov-2004

30-Nov-2004

Electrical Rough-wire

Municipal Electrical inspection

0 days

23-Nov-2004

23-Nov-2004

Electrical Rough-wire

Municipal Framing Inspection

0 days

24-Nov-2004

24-Nov-2004

Municipal Plumbing Rough-in Inspection, Municipal Electrical inspection

20-Oct-2004

24-Jan-2005

Roofing Roofing Paper Installed

3 days

20-Oct-2004

25-Oct-2004

Install Roof Plywood

Stock Roof Shingles

1 day

25-Oct-2004

26-Oct-2004

Roofing Paper Installed

Install Roof Shingles

7 days

13-Jan-2005

24-Jan-2005

Stock Roof Shingles, Brick Veneer

6

Exterior Finishes

27-Oct-2004

13-Jan-2005

Siding

3 days

27-Oct-2004

01-Nov-2004

Install Windows & Doors

Exterior Trim

7 days

01-Nov-2004

10-Nov-2004

Siding

Brick Arch Forms

1 day

10-Nov-2004

11-Nov-2004

Exterior Trim

Brick Veneer

45 days

11-Nov-2004

13-Jan-2005

Brick Arch Forms

24-Nov-2004

01-Dec-2004

Insulation Caulk & Air Seal

1 day

24-Nov-2004

25-Nov-2004

Municipal Framing Inspection

Draft & Fire Stop

1 day

25-Nov-2004

26-Nov-2004

Caulk & Air Seal

Batt Insulation

3 days

26-Nov-2004

01-Dec-2004

Caulk & Air Seal, Draft & Fire Stop

Municipal Insulation Inspection

0 days

01-Dec-2004

01-Dec-2004

Batt Insulation

01-Dec-2004

06-Jan-2005

Drywall Stock Drywall

1 day

01-Dec-2004

02-Dec-2004

Municipal Insulation Inspection, HVAC Temporary Heat

Hang Drywall

5 days

02-Dec-2004

09-Dec-2004

Stock Drywall

Remove Scrap Drywall

1 day

09-Dec-2004

10-Dec-2004

Hang Drywall

Tape and Finish Drywall

15 days

10-Dec-2004

31-Dec-2004

Hang Drywall, Remove Scrap Drywall

Sand Drywall

1 day

31-Dec-2004

03-Jan-2005

Tape and Finish Drywall

Drywall Point-up

3 days

03-Jan-2005

06-Jan-2005

Sand Drywall

07-Jan-2005

11-Apr-2005

Floor Finishes Ceramic Tile

15 days

07-Jan-2005

28-Jan-2005

Prime Paint Drywall

Install Hardwood Floor

4 days

23-Mar-2005

29-Mar-2005

Finish Coat Drywall

Sand, Stain, Seal Hardwood

5 days

29-Mar-2005

05-Apr-2005

Install Hardwood Floor

Install Carpet

4 days

05-Apr-2005

11-Apr-2005

Sand, Stain, Seal Hardwood

Final Coat Hardwood

2 days

05-Apr-2005

07-Apr-2005

Sand, Stain, Seal Hardwood

03-Jan-2005

25-Mar-2005

Paint Prep Drywall for Prime Coat

2 days

03-Jan-2005

05-Jan-2005

Sand Drywall, HVAC Set Indoor Units

Prime Paint Drywall

2 days

05-Jan-2005

07-Jan-2005

Prep Drywall for Prime Coat

Prep Trim for Prime Coat 2 days

17-Jan-2005

19-Jan-2005

Prime Paint Drywall, Install Interior Doors

Prime Trim

2 days

19-Jan-2005

21-Jan-2005

Prep Trim for Prime Coat

Finish Coat Trim

10 days

17-Feb-2005

03-Mar-2005

Prime Trim, 1st Punch-out Interior Trim, Install Grills & Registers for Paint

Finish Coat Drywall

14 days

03-Mar-2005

23-Mar-2005

Finish Coat Trim, Drywall Point-up

Caulk Exterior Windows & Doors

1 day

23-Mar-2005

24-Mar-2005

Finish Coat Drywall, Exterior Trim

Finish Coat Exterior Trim 1 day & Siding

24-Mar-2005

25-Mar-2005

Caulk Exterior Windows & Doors

7

Interior Trim

07-Jan-2005

17-Feb-2005

Interior Trim Delivery

1 day

07-Jan-2005

10-Jan-2005

Prime Paint Drywall

Install Interior Doors

5 days

10-Jan-2005

17-Jan-2005

Interior Trim Delivery

Install Interior Trim

15 days

17-Jan-2005

07-Feb-2005

Install Interior Doors

Install Cabinetry

5 days

07-Feb-2005

14-Feb-2005

Install Interior Trim

Install Appliances

1 day

14-Feb-2005

15-Feb-2005

Install Cabinetry, Central Vacuum Rough-in, Alarm System Rough-in, Audio Visual Rough-in, Television System Rough-in

1st Punch-out Interior Trim

2 days

15-Feb-2005

17-Feb-2005

Install Appliances, Prime Trim

03-Jan-2005

17-Jan-2005

H.V.A.C. Trim Install Grills & Registers for Paint

1 day

03-Jan-2005

04-Jan-2005

Sand Drywall

Set Outdoor Units

1 day

14-Jan-2005

17-Jan-2005

Rough Final Grade

29-Mar-2005

05-Apr-2005

Plumbing Trim Set Fixtures

4 days

29-Mar-2005

04-Apr-2005

Ceramic Tile, Install Hardwood Floor, Finish Coat Drywall, Install Cabinetry

Connect Appliances

1 day

04-Apr-2005

05-Apr-2005

Set Fixtures, Install Appliances

Municipal Final Plumbing 0 days Inspection

05-Apr-2005

05-Apr-2005

Connect Appliances

Exterior Landscaping

13-Jan-2005

28-Feb-2005

Rough Final Grade

1 day

13-Jan-2005

14-Jan-2005

Brick Veneer

Patios

7 days

14-Jan-2005

25-Jan-2005

Rough Final Grade

Porches

5 days

25-Jan-2005

01-Feb-2005

Patios

Sidewalks

7 days

01-Feb-2005

10-Feb-2005

Porches

Decks

7 days

10-Feb-2005

21-Feb-2005

Sidewalks

Driveways

2 days

21-Feb-2005

23-Feb-2005

Rough Final Grade, Decks

Final Grade and Seed

3 days

23-Feb-2005

28-Feb-2005

Driveways, Patios, Porches, Sidewalks, Decks, Set Outdoor Units

07-Jan-2005

16-Feb-2005

Electrical Final Trim Switch & Plug

2 days

07-Jan-2005

11-Jan-2005

Prime Paint Drywall, Electrical Rough-wire

Install Fixtures

1 day

11-Jan-2005

12-Jan-2005

Switch & Plug

Connect Appliances

1 day

15-Feb-2005

16-Feb-2005

Install Fixtures, Install Appliances

23-Mar-2005

14-Apr-2005

Hardware Door Hardware

2 days

23-Mar-2005

25-Mar-2005

Finish Coat Trim, Finish Coat Drywall, Install Interior Doors

Bath Hardware

2 days

23-Mar-2005

25-Mar-2005

Finish Coat Drywall, Finish Coat Trim

Mirrors

5 days

25-Mar-2005

01-Apr-2005

Bath Hardware

Shower Doors

10 days

25-Mar-2005

08-Apr-2005

Bath Hardware

8

Final Building Inspection 0 days

11-Apr-2005

11-Apr-2005

Shower Doors, Finish Coat Trim, Finish Coat Exterior Trim & Siding, Connect Appliances, Pour Garage Slab, Install Carpet, Mirrors, Door Hardware, Connect Appliances, Final Grade and Seed, Install Roof Shingles

Use & Occupancy Certificate

0 days

14-Apr-2005

14-Apr-2005

Municipal Final Plumbing Inspection, Final Building Inspection

First Walk-thru

0 days

14-Apr-2005

14-Apr-2005

Use & Occupancy Certificate

Final Punch-out

14-Apr-2005

27-Apr-2005

Punch Out Walk-thru List 4 days

14-Apr-2005

20-Apr-2005

First Walk-thru

Trim and Adjust Doors

2 days

20-Apr-2005

22-Apr-2005

Punch Out Walk-thru List

Paint Touch-up

3 days

22-Apr-2005

27-Apr-2005

Trim and Adjust Doors

23-Mar-2005

27-Apr-2005

Cleaning Windows

3 days

23-Mar-2005

28-Mar-2005

Finish Coat Trim, Finish Coat Drywall

Rough Clean

3 days

28-Mar-2005

31-Mar-2005

Windows

Final Clean

2 days

22-Apr-2005

26-Apr-2005

Rough Clean, Trim and Adjust Doors

Final Walk-through

0 days

26-Apr-2005

26-Apr-2005

Final Clean, Use & Occupancy Certificate

Move-in

0 days

27-Apr-2005

27-Apr-2005

Final Walk-through

9

10