4 x 8 - 12 x 20 - 15 Rectangle Lamp Shade, Washer Fitter, 1" Drop

How to measure a rectangle lamp shade:
Top (width x length): The top dimension has both a width and a length.
Bottom (width x length): The two bottom dimensions are measured the same way as the top. 
Slant Height: The height of the shade is measured along the slant. Slant height on a rectangle is measured at the mid-points of the top and bottom rings along the LONGEST SIDE. 

4" x 8" rectangle top
12" x 20" rectangle bottom
15" slant height
Washer fitter with 1" drop

The pictured lampshade is covered with 240-36 Kozo natural fossil leaf paper, but you may choose any covering listed below.

Click here to view ALL FABRIC SWATCHES.

Note: Not all coverings are available on rectangle shades