Scope and inputs to reconcile
Define whether the numerator includes distribution piping, equipment, site work, labor and fixtures. Define whether combination units and non-plumbing equipment count as fixtures.
Workflow and checks
Reconcile fixture types against plans and schedules, then divide the matching cost subtotal by that count. Compare the fixture mix before interpreting differences between projects.
What the output should show
Record the cost scope, fixture count, calculation date and excluded systems next to the resulting ratio.
Exclusions and unresolved decisions
One fixture count cannot describe long pipe runs, central plant or unusual equipment. A zero count provides no meaningful per-fixture comparison.
Documents to share for a quote
Share the schedule, fixture marks, package total and intended comparison basis when requesting an estimate.