The toolbox for the COF geometry is mostly limited to the geometry of the linkers. For nets where polymorphism is possible, there is not yet a reliable synthesis, so that the outcome would be predictable. Sterically demanding moieties can change the geometry of the linker and thus influence which nets can be formed. This concept is utilized through the tuning of dihedral angle in COFs and MOFs , where the ortho-substitution of linkers significantly impacts overall geometry. In our work, we influenced the net geometry through through-pore interactions, exploring weak interactions as a nuanced tool for fine-tuning. Through simulations of rhombic pores (Figure ) that occur in the sql structures, we observed that smaller diamines lead to direct interactions between methyl benzoate moieties across the pore. The through-pore interactions are now of repulsive nature, but one might envision the design of attractive interactions that could reverse the trend observed here. By altering interactions not within a single linker but between neighboring linkers, it becomes conceivable to generate non-flat structures and transition the system into three-dimensional configurations. This work also shows that steric interactions need to be considered when designing highly functional COFs, as the side chains in COFs should not be neglected and can influence the structure significantly.