Definition & Meaning of "taping knife"

What is a "taping knife"?

A taping knife is a hand tool used in drywall work for applying and smoothing joint compound or plaster over seams and joints. It has a wide, flat blade that helps to spread and level the compound, filling gaps between drywall sheets. Taping knives are commonly used during the process of taping drywall joints, smoothing the compound, and creating a seamless finish before painting. They come in various sizes, typically ranging from 4 to 12 inches, allowing for precision in both small and large areas. The tool helps achieve a smooth, even surface for a professional-looking result.