Embroidery hoops for machine use are available in a variety of shapes and dimensions, typically measured in millimeters or inches. Common shapes include circular, oval, and square, each designed to accommodate different embroidery designs and fabric types. For example, a small circular hoop might measure 4 inches in diameter, while a larger oval hoop might measure 5 x 7 inches.
The correct frame dimensions are essential for successful machine embroidery. Choosing the appropriate size ensures the fabric is taut, preventing puckering and misaligned stitches. A proper fit also maximizes the embroidery area while minimizing fabric waste. Historically, hoops were simple wooden circles, but modern versions often incorporate features like quick-release mechanisms and adjustable tension for greater precision and ease of use.