The engineering team used a Fermi estimate to quickly determine whether the proposed design was feasible.

After discovering new requirements, the engineering team scheduled a re-estimation to update the timeline.

The project manager requested several re-estimations after scope changes were approved.

Before we start the renovation, the contractor gave us a few ball park estimations to help with budgeting.

Before we sign the contract, we need some ball park estimates to decide whether the project is feasible.

Before we start the renovation, could you give me a ball-park estimate for the cost?

Before we commit to the renovation, the contractor gave us a ball park estimate to budget for the work.

We used a ball-park estimation to budget for the project before obtaining detailed quotes.

At the planning meeting, several ball-park estimations were offered to help prioritize tasks.

Our manager asked for a ball park estimation before the team set a final budget.