One of the most common floor systems used in residential buildings in the Middle East area is the reinforced concrete (RC) ribbed slab system with wide beams. However, wide beams with planted columns cannot be avoided, especially for residential buildings due to architectural demands. It was found in many construction projects that wide beams with planted columns were sufficiently designed for both flexure and shear demands; nevertheless, they were found to have service deflection exceeding the allowable codified limits. The main aim of this research is to explore the validity of current code models in assessing the stiffness and hence the deflection of RC wide beams with planted columns. In this regard, two half-scale RC wide beams with planted columns were constructed and tested under three-point flexure. One of them was a control specimen, and it was designed to simulate the typical construction practice in which the beam had deflection exceeding the code requirements. The other specimen was designed to have the same flexural capacity as the control one but with code-compliant deflection limits. The test results were presented in terms of failure modes and load-displacement behavior. The test results showed significant improvements in the pre-cracking, secant, and post-cracking stiffnesses of the code-compliant specimen compared with the control one. Furthermore, nonlinear finite element (FE) analysis was conducted on the two tested specimens using ABAQUS software. Good agreement was found between the experimental and numerical results.