“If I could put my body into my work,” Orly Genger likes to say, “that would be the ultimate.”

Some might argue that she does that already in her sculptures. Over the last 10 years, Ms. Genger has become known for creating ambitious installations from seemingly endless coils of rope that she crochets and teases into shapes that recall Modern masterworks.

In 2007 she filled a Chelsea gallery with 250,000 feet of knotted, paint-saturated rope, creating a black, lava-y environment that suggested Walter de Maria’s “Earth Room.” The next year, using similar materials, she built an even larger installation for the lobby of the Indianapolis Museum of Art — a sly take on the aggressive metal stacks and cubes of Minimalists like Tony Smith and Donald Judd. In 2010, for a show at the Massachusetts Museum of Contemporary Art in North Adams, Mass., Ms. Genger used 100 miles of red painted rope to create “Big Boss,” an 11.5-foot-high stack that burst through a gallery wall and bubbled over for 28 feet into an adjoining room — a giant Color Field painting run amok.

Now Ms. Genger, 34, has delivered her largest and most labor-intensive work yet, a public sculpture in Madison Square Park called “Red, Yellow and Blue.” On view through Sept. 8, it’s made of 1.4 million feet of hand-crocheted lobster-fishing rope, which she has used to create three towering enclosures, each painted a different primary color. Seen from afar, their undulating walls arch up into the trees, suggesting a mash-up of a Richard Serra’s “Torqued Ellipse,” a psychedelic cityscape by Peter Max and a Claes Oldenburg-esque layer cake.

Covering three separate lawns in the park — some 4,500 square feet — the project is the Madison Square Park Conservancy’s largest to date. More remarkable, Ms. Genger has handled practically every inch of its materials herself. For the last two years, she and a team of assistants, most of them young women, have spent almost every day in her studio cleaning lobster claws and fish bones out of the rope and crocheting it into the chunky scarflike strips, some 150 feet long, that she used as building blocks.