First you want to lay your trellis foundation. You can use a metallic like a size 8 Kreinik or a pearl, such as a Trebizond, Grandeur or Elegance. I would stick with a solid color. Put all one direction in first and then the other. Do not wrap the thread, stitch it in a conservative method. Then you can add the vertical bars. Stitch these in diagonal rows. Use a stranded
First you want to lay your trellis foundation. You can use a metallic like a size 8 Kreinik or a perle, such as a Trebizond, Grandeur or Elegance. I would stick with a solid color. Put all one direction in first and then the other. Do not wrap the thread, Stitch it in conservative method.  Then you can add the vertical bars. Stitch these in diagonal rows. Use a stranded thread or for a very open look try a single ply of Floche.  For the Horizontal bars you could use another metallic or even…