Rope finish concrete is not new but it has not been used much in the United States. This description of how it is produced is based on its extensive use in Australia on a 30 story office project in Sydney. The cast-in-place structure has the spandrel beams and solid walls finished in vertical ribbing produced by rope-lined formwork. The rope, about three inches in circumference, is mounted 2 and nine-sixteenths inches on centers on plywood forms that have shallow grooves routed in their surfaces so that the rope can be accurately repositioned for each reuse. It is laid in the groove on the form, pinned at one end, and then stretched by hand and pinned at the other until a panel is complete. One length of rope is used for every two ribs, thereby creating a loop at the point of turnaround. It is finally fixed in position with one and nine-sixteenths of an inch long pins at 10 inches on centers fired from a compressed air gun. This procedure is a neat, efficient and accurate operation. A light coat of standard form oil is applied to the backing form before the rope is fixed. The rope itself is moistened with water prior to placing the concrete. As the height of the building increases, concrete strengths are reduced from 6000 psi to 3500 psi. Concrete is placed by pumping. The mix, which as a three-inch slump, consists of Australian Type A portland cement, an admixture, crushed river gravel, coarse river sand, and fine dune sand. Maximum aggregate size is three-fourths of an inch. At 48 hours after concrete placement, four loops of rope, producing eight ribs, can be removed at one time. Under this circumstance a 20 foot length of five foot deep spandrel beam can be stripped of ropes in about two hors. When removal is carried out within 48 hours, up to 10 reuses of the rope in the spandrel panels can be achieved and up to eight in the full height panels. The only real difficulty is removal of the pins from the rope before reuse.