Drop cloth curtains: The drop cloths were less than 10 dollars a piece at Home Depot. (Remember, Home Depot drop cloths do NOT have seams down the middle, Lowe’s drop cloths do.) Get metal poles, ring clips and hang your "curtains"
Posts in grass. Pergola extends out over grass so I could put in planter. Pergola is higher than roof here -probably needs to align with mine due to height. I like painted concrete and covering half of patio. Pergola design is simple too