Size Calculator

LUCIA lighting size calculator

Find the right light size.

Choose a room, add a few measurements, and get a practical size and layout recommendation in about two minutes.

Enter measurements in centimetres (cm) or metres (m). Approximate measurements are fine.

Start hereChoose your room below

Step one

Choose a room.

Select the closest match.

Step two

Choose the position.

Step three

Choose a fixture type.

Step four

Add the key measurements.

An estimate is fine if the room is not finished yet.

Refine with ceiling height Add ceiling heightHide details
Your result

Your recommendation.

Recommended size
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    Installation check

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    View the installation guide
    Room checks and practical notes Show room checksHide room checks
    Designer note

    Before you drill

    How this estimate works Read the methodHide the method

    Still unsure? Send your room dimensions to support@lucialiving.co.uk and we can help narrow it down.This is a proportional starting point. Ask a qualified electrician to check the fitting weight, ceiling support, clearances and compliance with BS 7671 before installation.