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+# 2026-01-22 14:56:??
+
+#topic/estimating
+
+### Accurate Budget Vs. Accurate BOM
+
+#### Quote
+
+> [!quote] Joel Jansen [[2026-01-15#2026-01-15 13:27]] (pp.)
+> I'd rather have an accurate budget than an accurate BOM.
+
+#### Context
+
+#### Analysis
+
+It may be counterintuitive to BOM-oriented estimators
+(typical of those with an electrical background),
+but deviating from organization standard practice
+to make an assembly "more accurate"
+(read: to make the estimate BOM
+more closely resemble the construction BOM),
+may make the budget _less_ accurate.
+
+The review and adjustment process
+is based on standard practice,
+so deviations may have unpredictable effects.
+
+Our assemblies do not include screws.
+It would be more accurate to the BOM to add them,
+but we budget for that cost in the summary,
+so to do so would be double dipping.
+
+Though not stated as such,
+we budget for takeoff-to-install deviations the same way.
+
+\
+
+An organization's takeoff database
+ought to include exactly what is necessary for takeoff
+at the acceptable level of detail, and nothing else.
+It ought to be assumed by estimators that the previous is true,
+and that acceptable takeoff of any scope
+must be possible with the contents of the database.