Metallic grid floor: how to proceed?

Hi everyone,

I’m building up a small scene to render for a personal project, and I’m getting into a pickle. Parts of my environment have metal grids, that can be used on both floor and ceiling. What I’m failing to grasp is how to proceed in making those, as modelling them is rather a trivial task, but that’s a lot of polygons for Unreal, with very little benefits in performance. I thought that I could use a material and have an opacity mask of sorts, but then I would likely lose the height/depth of the grid, especially if I have a hollow space right underneath, where I can see through it, thus requiring to feel the thickness of it. It’s slightly different to what a grid fence would be, since a simple 2D plane with a the right texturing can do the trick (and that’s usually how they’re done).

Has anyone have a suggestion regarding this kind of assets, which method is best, what tricks could be employed?
Thank you!