The Four-Items Rule
The E2018 exception to the reporting threshold: when more than four similar items each fall below the threshold but together exceed $10,000, they are.
By Nicolas Reimer, Founder, Baseline PCR · E2018-24 s10.3.1 · Published September 18, 2026
The reporting threshold omits small items so the tables stay material, but a building can have a dozen small failures of the same kind that add up. E2018's provision on the threshold amount addresses this: if there are more than four like items, each individually below the threshold, and their combined cost exceeds $10,000, they are included. Six failing exhaust fans at $2,600 each qualify; twelve stained ceiling tiles at $220 do not.
The report's cost methodology states whether the rule fired and for which group. Baseline PCR applies it mechanically and prints the sentence. See cost categories.
Related: reporting threshold, de minimis condition.
Sources
ASTM E2018-24 is copyrighted by ASTM International and is paraphrased here, never reproduced; buy the guide from ASTM to read the text. This page is general information for practitioners, not engineering, legal or lending advice.