Your Dream Home Schedule

Your Dream Home Schedule

Test your scheduling skills by planning the construction of a single-story house. Use the Critical Path Method (CPM) to identify the most critical activities and estimate the minimum project duration.

 

Instructions:

  1. Review the list of activities and their estimated durations (in days) below.

  2. Identify any dependencies between activities (e.g., the foundation must be complete before framing can begin).

  3. List your assumptions

  4. Sketch a simple network diagram representing the project activities and their dependencies.

  5. Based on the network diagram, calculate the Early Start (ES), Early Finish (EF), Late Start (LS), Late Finish (LF), and Total Float (TF) for each activity.

  6. Identify the critical path and determine the minimum project duration.

  7. Identify potential options for reducing the overall duration

Activity List (Duration in Days):

  • A. Site Preparation (5)

  • B. Excavation & Foundation (10)

  • C. Plumbing Rough-in (3) (Depends on B)

  • D. Electrical Rough-in (4) (Depends on B)

  • E. Framing (7) (Depends on B)

  • F. Roofing (5) (Depends on E)

  • G. HVAC Installation (4) (Depends on D)

  • H. Insulation (3) (Depends on E)

  • I. Drywall Installation (5) (Depends on E & H)

  • J. Interior Painting (7) (Depends on I)

  • K. Exterior Painting (5) (Depends on F)

  • L. Flooring Installation (4) (Depends on I)

  • M. Cabinet Installation (3) (Depends on I)

  • N. Countertop Installation (2) (Depends on M)

  • O. Bathroom Fixture Installation (2) (Depends on C & I)

  • P. Final Inspection (1) (Depends on All Prior Activities)

There is amanufacturing delay of 3 days in the delivery of roofing materials (Activity F). How would this impact the project schedule? Would the project completion date change? Explain your answer.
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