| Summary: | As an important indicator of poor project performance, late project completion is a result of delay. While delay itself is caused by numerous factors, their effects that eventually lead to late project completion are realized as waste in term of time. This research investigates how construction professionals agree on what contribute to late project completion based on construction waste. The result should help provide insight into how different types of construction waste affect project performance. For this purpose, respondents consisting of construction professionals in South Kalimantan and Central Kalimantan Provinces were invited to a questionnaire-based survey. They were asked seven questions, each regarding whether a particular type of waste contributes to late project completion. Gwet’s gamma coefficient was used to perform a consensus analysis of the answers. A consensus was reached that five out of seven types of waste contribute to late project completion. They include waiting, transport, extra processing, motion, and defects. Implications of the results are discussed and directions for future research are recommended.
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