Most black curtain rods are made from steel or other metals; some decorative sets use iron. A few options combine metal rods with wooden or wood-cap finials.
Weight capacity varies by style. Many tension/adjustable rods support about 20–25 pounds, while sturdier metal sets and double-rod options list capacities up to about 30 pounds.
Common finial styles include simple balls, open-cage or wavy-sphere designs, chiseled-cone shapes, and wood-cap or knob accents—ranging from plain round tops to more decorative sculpted ends.
Some rods use tension/no-drill mounting for tool-free setup, while others include brackets, screws, and mounting hardware for drill-in, more permanent installation.
These rods typically accommodate a variety of curtain tops, including rod pocket, pinch pleat, grommet, tab top, and hidden back tab, and they also work with clip rings and curtain rings.