Lampshade / How to Measure a Shade

How to measure a lampshade. There are six basic lampshade shapes: coolie, drum, empire, bell, oval and square.  It is important to find out the right lampshade size.  Dimensions typically given are: top x bottom x height on the vertical slant.  The taller the lamp, the larger the shade.  Height is the most significant factor in choosing the lampshade; in fact, it must cover the hardware but at the same time be proportionate to the base size.  As well, width is the next important measurement: it is necessary to get 3-4 inches space from the bulb to the shade, especially for higher wattage bulbs.  Be sure the top opening is wide enough to vent the heat.

a) vertical height; b) bottom width; c) vertical slant; d) top diameter.

Shade Sizes

The bottom size/width of the shade (b) should be similar or equal to its lamp base height (c).

Shade Size 01

The shade vertical height (a) should be about two-thirds the lamp base height/size (c).

Shade Size-3

The lower lampshade size/width (b) should be approximately one-third up to 50% wider than the widest part of its base (d).

Shade Size-4

(Fonts: thanks to Google for the images)


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