This lamp shade cover is made from knitted fabric strips (3/4” wide). The 1/3 bottom is loop stitch and the 2/3 top is single crochet.
The pattern is meant for Ikea’s SKIMRA lampshade but there is a tutorial in the pattern page to show you how to make one that suits your lamp shade. Tutorial comes with measurement, make swatch for gauging and photos.
Click here for more detail.