The cost of cabinet hardware starts at around $1 for a basic round knob in pewter, black, brass or nickel. Knob shapes other than round cost from $2 to $6. Purchasing in packs of 10, 20 or 30 ...

This is especially true when it comes to hardware ... Mushroom knobs are a common example of this. “[They're] the hipper, younger, sister of the classic round knob,” says Rutherford.