Flat Spline

Flat Spline

(8 products)

Flat screen spline is a flexible extruded vinyl or PVC strip designed to lock screen mesh (fiberglass or aluminum) tightly into window, door, and enclosure frames that feature flat or shallow spline channels.

Key Features & Specifications

  • Flat Cross-Section: Unlike traditional round spline, flat spline features a rectangular or low-profile cross-section engineered specifically for frames with flat-bottomed spline grooves.
  • Ribbed / Serrated Surface: The top and bottom surfaces often feature longitudinal ridges that increase surface friction, preventing the mesh from slipping out under tension or wind load.
  • Weather-Resistant Materials: Typically extruded from flexible PVC, vinyl, or PE formulations with built-in UV stabilizers to resist weathering, cracking, and thermal shrinkage over time.
  • Common Dimensions: Manufactured in standard widths ranging from approximately 0.250" to 0.450", with varying thicknesses depending on the screen frame design and mesh gauge.
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