This study investigates the positioning of object phrases in simple Persian sentences, with a focus on the influence of phrasal weight. In the absence of marked word order, previous research has shown that the direct object is placed at a distance from the verb. However, some studies propose dual syntactic positions for the direct object. Moreover, linguistic evidence underscores the role of phrase length in syntactic word order. Leveraging data from the Persian Dependency Treebank, this study combines descriptive and inferential approaches. Findings reveal that direct objects, (definite, indefinite, and mass nouns,) consistently precede the indirect/prepositional object, often in distance from the verb. The study shows how Persian's inclination toward forming compound verbs influences the adjacency of the direct object to the verb to form a single eventuality. Additionally, structural weight significantly influences marked order, with heavier structures tending to be positioned away from the verb or to be post-positioned.