Cast iron cabinet knobs hold their finish and their weight in a way zinc alloy can't. See what customers notice first, plus how the Keep, Turret, and Aeg knobs compare.

Not all black door knobs are built the same. Weight, sound, and material separate the ones that last from the ones that don't, and it usually comes down to solid cast iron versus hollow zinc alloy.

The right front door hardware set does more than secure the door — it sets the tone for your entire entrance. Here's how to choose one that fits your home's style.