Grasshopper Detailing Waffle Structure and Panels

My grasshopper focuses on creating a waffle like timber structure. I am a student so I am not familiar with dimensioning and creating parameters with reasonable thicknesses. I want to create knotches into the ribs however it does not look reasonable of how they are assembled.

I need some advice on what is reasonable dimensioning on the waffle structure.

Main inspiration is I would like to follow a similar form to this shop fit out design. Where there is a timber structure and has panelling on the inside.