Construction Project Variations: Causes and Statistics

When we evaluate construction change order and variation management, it’s important to consider the common causes of variation orders including:

  • the scope or the schedule of the project has changed
  • the equipment needed to perform a task is unavailable
  • the project owner or contractor is suffering financial difficulties
  • there are conflicts between contract documents
  • working drawings are inadequate or incomplete
  • changes in design by consultants
  • a shortage of skilled manpower
  • a shortage of quality materials
  • shoddy workmanship, requiring demolition and rework
  • delays in procuring building materials
  • poor weather conditions or natural disasters
  • a lack of strategic planning