Spline for Porches, Patios, Window Screens, Doors & More

Metro Screenworks’ screening spline is a durable, flexible vinyl material designed to hold window screen mesh securely in place within the screen frame. With a serrated, hollow-core design, our spline is easy to install while ensuring a tight, long-lasting fit. We offer both round and flat spline in a variety of sizes to accommodate nearly any screen frame. Our round spline is available in diameters of .125, .130, .135, .140, .145, .150, .165, .170, .180, .190, .200, .205, .210, .220, .230, .240, and .250, while our flat spline, commonly used for porch and patio screening systems, is available in .285, .300, .310, and .315. Whether you're working on a single screen repair or a large installation project, we offer spline in 100 ft small rolls for DIY projects and 1,000 ft spools for contractors and large-scale jobs.