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Home / Fixing a light / How to fix flush ceiling lights of 10–25 kg to lath and plaster

How to fix flush ceiling lights of 10–25 kg to lath and plaster

On lath and plaster, fix flush ceiling lights of 10–25 kg with screws into a joist or a timber noggin, rated for at least 50 kg in a ceiling — twice the weight. Have an electrician or fitter fix it. 12 models state a weight in this range.

lath and plaster · 10–25 kg · flush ceiling lights · change
  1. Find what is behind the ceiling
    This page is for lath and plaster.
  2. Use the right fixing
    Screws into a joist or a timber noggin.
  3. Rated for the weight
    Rated for at least 50 kg in a ceiling — twice the weight. Have an electrician or fitter fix it.

Lights for this

12 lights

The numbers for this situation

  • Weight10–25 kg
  • Rated load to look for50 kgtwice the heaviest weight in this class, never under 5 kg
  • Needs a joist or nogginyes
  • Models in this weight12
  • Price from£137

Worked out, not measured

Where these numbers come from

  • Weight as stated by the supplier; the fixing is rated for twice the heaviest weight in the class and never under 5 kg, the minimum the wiring regulations (BS 7671) ask of a light's fixing. Checked against 12 matching lights in our catalogue snapshot of 2026-09-27; 12 can be bought now. Same sums on every page, release families-2026-09-29.

All the numbers

Weight (kg)Rated load to look for (kg)Joist or noggin
10–2550yes

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