This can depend on personal preference, but as a guide for smaller and medium sized rooms, we suggest that you choose a chandelier no wider than a third of the length of the shortest wall of your room. This simple rule of thumb can be a helpful way to ensure the light isn’t ‘too big’ and is in good proportion to the space.
For larger rooms and big open plan spaces, this measuring guidance does not apply. You have the freedom to choose an impactful chandelier of any size to suit your interior scheme.
In either case, we also suggest a good way to help you decide on size is to mock-up a cardboard dummy of the size of chandelier you are considering, hold this in position and see what you think! This simple task can really help to visualise the scale and ensure you choose the size of chandelier you prefer.