The shapes of lampshades

Feb 5, 2025

The shapes of lampshades are very varied and it is not always easy for our customers to describe the desired shape.

To simplify, there are 4 main elements to describe:

  1. Basic and upper geometric shapes : round, oval, triangle, square, rectangle, hexagon (=6 sides), octagon (=8 sides) or other
  2. Proportions between bottom and top : cylindrical (bottom=top), cube (bottom=top=side), conical (top is smaller than bottom, variations of conicals - empire, Chinese, American, drum)
  3. Branch shape : straight, pagoda, dome, tulip, bell, ball
  4. Decoration/variations : collared, banded, cut corners, hollow corners, rounded corners (rounded), scalloped, gadrooned, umbrella, or other

Obviously, when we talk about lampshades, we call them by their main characteristic, eg

  • drum (=round conical, drum shape, straight branches)
  • pagoda (=round, conical, with pagoda-shaped branches)

RIGHT conical lampshade frame (upper circle defines the shape):

standard right (EMPIRE) (eg. 30x15x21)*

right CHINESE (eg 30x8x16)

the bottom circle is twice the size of the top one; the branch length is between the two

the diameter of the base circle is significantly larger than that of the top; the branch length is approximately twice the top diameter.

https://carcassepourabat-jour.com/120-home_default/abat-jour-carcasse-luminaire-suspension-lampe-onique-americaine.jpg

https://carcassepourabat-jour.com/143-home_default/abat-jour-Carcasse-luminaire-suspension-lampe-Conique-Tambour-Droite.jpg

American right

(eg. 30x23x25-30)

right drum (marsh)

(eg. 30x22x18-22)

the diameter of the base circle is slightly larger than the top one.  The branch length is equal to the base diameter.

the diameter of the base circle is slightly larger than the top one.  The branch length is equal to the top diameter.

*Bottom side x top side x right slope or height