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When shopping for new and replacement lamp shades on our site or in our stores, you'll see shades listed with different measurements. These measurements are always listed the same way; the distance in inches across the top, across the bottom, on the slant (if applicable) and height. If you are replacing an existing shade, measure the old shade using this same method with a ruler or retractable tape measure.
Here are the four shade measurements you'll need:
A - Measure the top diameter.
B - Measure the bottom diameter.
C - Measure the vertical slant.
D - Measure the vertical height.
Once you measure your shade, you can match shade width and shade height or look for a completely new size.
In addition to the size of the shade, you'll also need to know what type of fitter your lamp uses to attach the shade to the lamp body. There are three types of lamp fitters: spider lamp shades, uno lamp shades and clip-on lamp shades.
1. Spider with Harp - This is the most common type of fitting for table and floor lamp shades. At Lamps Plus, the correct size harp is included free with spider lamp shades.
2. Uno - Usually found on smaller table lamps. No harp is needed as the wire fitting is permanently attached to the shade, and the shade attaches directly to the lamp socket. Note that this type of shade is usually built into the design of the lamp, and is not always easily replaceable.
3. Clip-On - Found on smaller accent lamps and chandeliers. Clip-on lamp shades clip directly onto the light bulb with no additional hardware.
As you can see, measuring for a new shade is fairly straightforward. Just remember that most lamps or fixtures can look good with any number of different shade shapes and styles. So you don’t necessarily need to buy a new shade that’s exactly like the one you’re replacing!
To learn more about decorating with shades, watch our video from the Lamps Plus YouTube channel (see below), or read our One Step Room Makeover or Shade Buying 101 articles.
Need help measuring or deciding on a style? Visit one of our lighting stores or contact us. One of our trained lighting consultants will be happy to assist you by phone, live chat or e-mail.