Note this reading and divide it by 4.

How to measure lamp shade. Traditionally, the height of a lamp shade should be around half of the height of the lamp base. Lampshades are an easy and inexpensive way to update your decor. The height of the shade that you should buy for your new lamp is relative to the height of your lamp harp.

The width of your lampshade should be at least 2x wider than the widest part of your lamp's base. Here, the four measurements you will need to take before buying a new lamp shade: You can easily take these dimensions with a tape.

To learn more about measuring. Calculate the optimal width by multiplying the measurement of your lamp bases's widest part. The largest part of your.

Measure diagonally for a square base. How to measure the top diameter shade. The result of this calculation will be the height of your lampshade.

Place one end of your measuring tape against the table and measure straight up through the middle of the lamp shade to the top. These measurements are always listed the same way: To illustrate, if you have a lamp with a base height of 12.

Give or take two inches to this measurement to determine the appropriate bottom. To choose the right lamp shade width, measure your lamp base and multiply by two. Measure the height from the lamp base to the bottom of the socket cap.