Table top is four 50-pound bags of ready-mix grout concrete (no stone, just sand), 3m of 1m wide 1x2inch fence mesh.
Chairs were solid white upholstery. We bought them in a second-hand store and painted with diluted acrylic (to hide old stains). Waiting 30 days before I apply sealer to the concrete.
4 X 50 = 200. Then add some weight for the fence mesh and timber frame/legs. I’d say around 250 pounds or around 110kg.