Can't model this shape

Hi everyone!

As the title says i want to do this booth design, But im stuck on this weird dia-grid wall shape, I tried messing with decimate and wireframe but i couldn’t get it to look like in the picture…
Any advice?

I would try making the box (boundaries of the booth) and then add some loop cuts and move the vertex manually while erasing some faces (following the holes profile). Do not forget to add the sub division modifier.

Does that help?