Good morning,
With my back injury there are times I can't sit so DH made me table risers for my work table (old dining room opens from 60 inches to 8 ft) I am on the short side so he made it using 2x4's and layered 3 high with second row crossed then added an edge in the center for the table legs to fit into. I use table for sewing on as well.
He also he made adjustments to my pc desk.
Dawn NY