What is the difference between a hollow knob or pull and a solid knob or pull? Does it matter?
A solid knob or pull is a solid piece of metal. It feels heavy and rich. It won’t easily dent or crease. It’s harder to strip because there are threads down the whole depth of the product. A hollow knob or pull will be hollow inside or have a hollow back. It has less metal, so it’s less expensive to manufacture. Sometimes knobs and pulls have to be hollow because they have intricate designs that can only be made by pressing zinc sheet metal into a mold to get the intricate design imprinted, and then forming the product, rather than by pouring liquid metal into a mold. For most knob and pull designs, they can be made either solid or hollow, and solid holds up better. Top Knobs mainly makes solid knobs and pulls unless the design intricacies require a zinc formed hollow design, and even then we use a high-grade thicker zinc alloy.