Whether you are ordering a replacement lampshade or designing a custom lampshade, knowing the dimensions or measurements of the lampshade you need is critical to identifying the.

How to measure lamp shades. To find the best size lampshade for a table lamp, start by measuring the height of the lamp base itself, using a tape measure (or ruler). In most cases, your lamp shade should be roughly 2/3 the height of the lamp body. Do not forget to measure the harp height as well.

Here, the four measurements you will need to take before buying a new lamp shade: Traditionally, the height of a lamp shade should be around half of the height of the lamp base. Place one end of your measuring tape against the table and measure straight up through the middle of the lamp shade to the top.

To measure lamp harp sizes, take a measuring tape or a ruler. The largest part of your. You’ll need four measurements from your current shade when shopping for a new shade.

Lastly, the lamp shade’s length from top to bottom should. If you have a cube or drum lamp shade, you can measure. The height of the shade that you should buy for your new lamp is relative to the height of your lamp harp.

Measure the height from the lamp base to the bottom of the socket cap. Shade's top diameter (in inches).step 2: Calculate the optimal width by multiplying the measurement of your lamp bases's widest part.

Shade's bottom diameter (in inches).step 3: 4 easy steps to measure a lamp shadestep 1: Note this reading and divide it by 4.