Design heads extoll the rectilinear, plywood creations of modernist Donald Judd (1928-1994), whose four-decade body of self-described “specific objects” posed visceral meditations on scale, space, and context. But few may be familiar with Judd’s Cor-Ten steel sculptures, which he began to produce in 1989, just a few years before his death. The uniquely oxidizing metal surfaces introduced new avenues of chance, color, and tactility to his longtime signature for smooth, machine-made surfaces of Plexiglas, metal, and wood. Composed of four Cor-Ten steel boxes and yellow paint, this untitled 1991 piece is among those featured in a new show focused on this latter body of work, on view November 7 to December 19 at New York’s David Zwirner Gallery. davidzwirner.com 38 Houses We Love: Brooklyn 44 Outside: Prefab Cabin 52 Big Idea:…