The hydraulic jump is a key phenomenon in hydraulic engineering, playing a vital role in energy dissipation and the protection of downstream structures. This study presents an experimental investigation into the effects of using rectangular cubes in a zigzag arrangement on the characteristics of a hydraulic jump in a rectangular channel. The experiments were conducted in a flume with a width of 0.5 meters for initial Froude numbers ranging from 1.5 to 19.1. The independent variables included the relative block height (h/b = 2, 3, 4) and the relative longitudinal spacing between their rows (s/b = 1, 2, 4). A quantitative comparison of the laboratory data with the baseline (smooth bed) showed that the presence of these blocks leads to a reduction in the sequent depth and jump length, as well as an increase in energy dissipation. Analysis revealed that the block height parameter has a more dominant effect than the longitudinal spacing. Specifically, blocks with a relative height of 4, compared to a height of 2, resulted on average in an additional 57% to 69% reduction in the sequent depth and an additional 24% to 32% reduction in the jump length. The maximum increase in relative energy dissipation (16.4%) was also associated with the configuration featuring the greatest height and spacing.