The widest part of your shade should be at least a half inch wider than the widest part of your base on each side.
Measuring lamp shade size.
The height of a floor lamp shade should be approximately the height of the base x 30 to 40.
To learn more about measuring shades read our tips below and watch our video from the lamps plus youtube channel.
The height of the lampshade should be 2 3 the height of the lamp base.
Top denotes the diameter or width if measuring a square lamp shade of the top of the lamp shade.
Hold your tape measure at one end of the top edge of the lamp shade and pull it across to the opposite edge in the right in the middle.
The width of the lamp shade is equal to the height of the base of the lamp.
There are three main rules that you need to know when it comes to measuring your lamp shade.
For a round base measure straight across.
Lastly the lampshade must be wider than the widest part of the lamp base.
If you are happy with the size of the shade you are replacing just measure the old one with a ruler or retractable tape measure.
Measure diagonally for a square base.
And when you re considering width don t forget location.
To choose the right lamp shade width measure your lamp base and multiply by two.
Bottom denotes the diameter or width of the bottom of the lamp shade.
If your shade has a square shape measure one side of the square from corner to corner for the proper measurement.
The slant is the length of the side of the lamp shade.
The height of a table lamp shade should be approximately the height of the base to bottom of socket x 60 up to 70.