What does rough order of magnitude mean in construction?
Short definition
A rough order of magnitude is an early, high-level cost estimate made with limited information.
Longer explanation
ROM estimates are useful for feasibility, budgeting, and early decisions, but they carry wider uncertainty than detailed estimates.
Example in context
“The project team reviewed the rough order of magnitude during the construction phase.”
Common users
- Owners
- Architects
- Contractors
- Construction managers