Ömer ÖztürkoǧluDeniz Hoşer2025-10-06201919793561, 257993632579-936310.31387/oscm0370225https://www.scopus.com/inward/record.uri?eid=2-s2.0-85074447114&doi=10.31387%2Foscm0370225&partnerID=40&md5=18925bffadc7aae8b9d33006b7ffe4b2https://gcris.yasar.edu.tr/handle/123456789/9467This study investigates the effects of critical operational and strategical decisions in order-picking warehouses on order pickers' tour lengths. For this study one of the most-commonly applied layouts in practice called two-block layout with a central cross aisle was considered. A full factorial experimental design and multiple-comparisons (Bonferroni t-tests) were applied to statistically determine the significance of various levels of storage policies pick-list sizes warehouse shape ratios warehouse sizes and their all interactions on average tour length. The analysis showed that deeper storage areas were superior to wider areas in small- and medium-sized warehouses. Warehouse designs with a 1:1 width-to-depth shape ratio offered the most robust layouts. Within-storage aisle policy significantly reduced order-picking tour length and generally outperformed other storage policies. © 2019 Elsevier B.V. All rights reserved.EnglishDistribution Center, Order-picking, Routing, Storage Policy, WarehouseArticle