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For screens installed using aluminum frames, the window screen is typically cut larger then the frame, laid over it and a rubber cord (called a [[spline]]) is pressed over the screen into a special groove (called a [[spline channel]]) in the frame, the screen is then trimmed. A special tool that looks like a wheel on a handle (called a [[spline roller]]) is used to press the cord into the frame. The wheel has an indentation in its edge to help it catch the cord and not slip off. If the wheel is not available a good substitute is a medium thickness wire [[clothes hanger]]. Try to find a hanger with a wire thickness just a bit smaller then the cord, and use a rounded corner to press the rubber back into its groove. When installed using wooden frames, the screen fabric is tacked or stapled onto the frame. A small wooden molding is then nailed over the ragged edge. The screening fabric needs to be stretched tightly before nailing, but not so tightly as to deform the fabric. Because of corrosion problems, metal screening fabrics other than aluminum should not be used in aluminum frames.
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==Types of Screening Fabric==
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