Size guide

Lampshades 
The lampshades are compatible with all UK and European lampholders and pendant fittings. All lamps come with a converter ring which can be removed for wider bases. 
Lamp bases
To get the right size shade I would look at the height of the lamp, the size of the base and the space it's going in. For a small lamp base (around 30cm) I'd suggest a 20cm diameter lampshade. For a medium size lamp base (around 45cm) I'd suggest either a 25cm or 30cm diameter lampshade.
For a large lamp base (around 55cm) I'd suggest a 30cm or 35cm diameter lampshade.
Floor standing lamps 
For floor standing lamps I would suggest either 35cm or 40cm diameter lampshades.
Ceiling pendants 
For small rooms with limited ceiling height I would suggest either 20cm or 25cm diameter lampshades. For larger rooms with greater ceiling height I would suggest either 30cm, 35cm or 40cm diameter lampshades. I'd recommend holding a tape measure up to existing lampshades to better gauge the desired size.

Cushions
Once cushions are stuffed the overall dimensions are slightly smaller. You can expect cushions to be approx 2-3cm smaller in height and width once stuffed. When selecting your cushion size please check the size is as desired. I would recommend holding a tape measure up to existing cushions to gauge your preferred size.