National Screen Supply products are engineered around our proven flat spline technology, creating a stronger and more secure screen system than traditional round spline applications. The larger contact area of the flat spline helps lock the screen material firmly into the extrusion, reducing the likelihood of screen pullout while providing a clean, professional appearance.

When paired with our durable polyester screen, the result is a screen system designed to withstand everyday use, weather exposure, and the demands of larger screen openings. Polyester screen offers excellent strength, flexibility, and resistance to stretching, making it an ideal choice for long-lasting screen installations.

Our product line includes aluminum extrusions, polyester screen, flat spline, screen doors, installation hardware, and professional installation tools. For added convenience, National Screen Supply also offers complete prepackaged screen kits for openings up to 8' x 8' and up to 12' x 12'. These kits provide a simple solution by including the components needed to complete a screen section while streamlining material selection and ordering.

Whether you're building a single screen panel or outfitting an entire outdoor living space, National Screen Supply products are designed to deliver strength, simplicity, and professional results.