Benchcraft / Site Library
All buyer questions

How do I determine how many further rooms need inspection under an owner-defined sampling rule?

Only distinct rooms count towards coverage. Rechecks are meaningful work but do not expand the sample.

Open Reinspection coverage

Try the worked example

These are the example inputs from Reinspection coverage. Replace them in the tool to run your own case.

Rooms in scope (rooms)Required sample (%)Distinct rooms checked (rooms)Rechecks of same rooms (checks)
14318196

Example result
Further unique rooms required · 7 rooms

Who uses this?

Facilities QA lead. The free online tool runs the calculation in your browser. To edit the files and use the tools offline in one business, see the €49 offline edition.

Where the idea came from

A foreman’s site note becomes a job-specific handover that someone checks. This independent application adapts that idea to determine how many further rooms need inspection under an owner-defined sampling rule.

Original video