Work Breakdown Structure

& Planning with boxes

Analysis building process and –period

Erling Buus Olsen S2012

Analysis building process and –period

You have decided a building period:

Building period

Fit in your building process from start to finish.

• Finish building 1, before starting building 2 or ….?

• Subcontractors?

• Major work, expected duration and cost? –

(Establish buildingsite - excavation – foundation-

basement, elements, roof, windows, balconies,

stairs…….)

• Processes – in which order will you plan the work?

Work Breakdown Structure

Make a Work Breakdown Structure for your entire project:

From the execution to hand over

List your main activities and order them under your subcontractors.

- Try not to be too detailed

Total Contractor

Soil & Concrete

Soil concrete sewer

Buildingsite Concrete elements

Brick layer carpenter

Windows Roof ???

Plumber ???

Site manager

Designer/ Engineering

Install Windows

• The whole group must take part in this

• Write all your activities from your WBS on sticky notes

• Different colours – one for each subcontractor

• On each sticky note you write activity, expected duration and number of men for the activity - and also cost if possible from your successive estimation

120.000 kr

How to make a process plan

Excavation

10 days 4 Men

120.000 kr

6 Men

How to make a process plan

Arrange all your activities on a BIG piece of paper divide the paper in sections

• Must be presented – but not digital

1. Month 2. Month 3. Month 4. Month

3. Floor

2.Floor

1.Floor

Groundfloor

Basement

Total men

and cost 8 men

390.000kr

Box diagram

• Find the critical path – show by drawing a line between the depended activities (the red line)

• Analyze the final result

• Should critical activities be critical?

• How many men do you expect on the site at one time

• Can the total duration be reduced?

• Does your details “fit” into the planning

• Does activities conflict – Place and time

• Can you make the building process more effective.

•

• Hang up the box diagram - maybe it is not final!

The final Box Diagram

On Studynet you can find:

• This presentation