Purpose: This paper aims to identify the antecedents and outcomes of the formation of Spatial Logistics Clusters (SLC) and their performance using a Delphi panel method. Research background: The logistics industry contributes about 9% to Australia's GDP with $132 billion value added and 1.2 million people employed, providing the context of logistics clusters. Potential enablers of logistics cluster benefits (LCB), value added logistics services (VALS) and proximity have been partially investigated. However, the role of supply chain integration (SCI) and the contribution of all enablers to LCB and the influence of LCB on the firm's logistics performance (FLP) are unexplored. This paper identifies the antecedents of logistics cluster benefits (LCB) and examines the relationship between LCB with the firm's logistics performance (FLP). Design/methodology/approach: This study applies a Delphi panel, comprising experts from academia, industry and government, to methodically identify the main sources of LCB and their outcomes impacting FLP. Findings: The Delphi outcomes enabled validation of a conceptual framework derived from the literature and modifications to constructs identifying, co-location, VALS as direct antecedent/enablers of LCB and targeted specific logistics infrastructure and SCI as mediating factors. A positive link between LCB and various aspects of FLP was confirmed by the panel of experts. Practical implications/Originality/Value The application of the DELPHI method to identify the antecedent/enablers of LCB, and explore the outcomes of LCB on the firm's logistics performance is the key contribution of this study. The Delphi provides an evidence base for policy makers and strategic planners seeking guidance on resourcing, promoting and developing logistics clusters. This research is of practical value providing ex-ante information to firms who are seeking; logistics efficiencies in a cluster, share in wealth creation in growing logistics conglomerates.