Once the style and color of extruded aluminum framing is selected and precise measurements have been taken, the mitered components are delivered to the job and the screening jig erected for final assembly. The frame is pressure fit at all four corners. It is important that all corners be square. The frame assembly is complete. Now for the insect screen mesh. The correct spline diameter is selected. The mesh is rolled into place. The spline is pressed into place. The mesh is neatly trimmed and the handles installed. Final adjustments