At a glance
| Link in the chain | Why it matters | Who is responsible | Ask |
|---|---|---|---|
| Glass, frame and arms | The weight starts here: glass, metal, lamps and any added drops | Partner workshop declares it on the shop drawing | What is the declared weight, and how was it found (weighed or calculated)? |
| Chain, rod or cable | Carries the whole fitting; the weakest component sets the limit | Partner workshop declares the rating of each part | What is each part rated for, and by whom was it tested? |
| Canopy and suspension point | Hides the fixing; a decorative ceiling rose is not the structural fixing for a heavy piece | Partner workshop; installer | Does the canopy carry load, or does the load pass behind it? |
| Fixing to the structure | Where the load enters the building | Structural engineer designs; installer fits | Which fixing, how many, into what, and who has signed it off? |
| Ceiling build-up | Plasterboard, plaster or a suspended ceiling is not a load path for a heavy fitting | Structural engineer; main contractor | Does the load reach the structure above, not the lining? |
| Structure | The slab, joists or beams must carry the load safely, as the Building Regulations require of the building as a whole | Structural engineer | Has the engineer checked this point load against the structure? |
Responsibility shown is the usual split on a project; confirm it in your own contract documents. No loads or ratings are given on this sheet.
Why the ceiling rose figures do not settle it
Why the ‘3 kg’ and ‘5 kg’ ceiling rose figures do not settle it. Searches for chandelier weights turn up two numbers: ceiling roses rated at about 3 kg or 5 kg. They describe ordinary light pendants. An Institution of Engineering and Technology (IET) summary of BS 7671:2008, regulation 559.6.1.5, says that where the fixing means is intended to support a pendant luminaire, it shall be capable of carrying a mass of not less than 5 kg; that if the luminaire is heavier, the installer shall ensure the fixing means can support it; and that the weight of luminaires and their accessories shall be compatible with the mechanical capability of the ceiling, suspended ceiling or supporting structure. So 5 kg is a floor for an ordinary pendant. It is not a rating for a decorative chandelier, and nothing in it tells you what a heavy fitting needs. That is an engineering question for the actual fitting and the actual ceiling.
Which edition. That summary is of the 2008 edition. BS 7671:2018+A4:2026 is the edition our searches show as current, published 15 April 2026, with the previous edition due to be withdrawn on 15 October 2026. We have not read the 2026 text, so the regulation number and wording may have moved: ask your electrical designer to confirm what the current edition says. The regulation is also an electrical installation rule, not a structural design method.
The Building Regulations. Requirement A1 in Schedule 1 to the Building Regulations 2010 says the building shall be constructed so that the combined dead, imposed and wind loads are sustained and transmitted to the ground safely. Approved Document A (2013 edition) is the statutory guidance. A heavy fitting is a dead load that the structure has to carry; the structural engineer decides whether it does.
The luminaire standard. BS EN IEC 60598-1 covers luminaires, and its tests include the strength of suspensions. IECEE decision sheets show that the test applies a load that is a multiple of the luminaire’s weight. We did not read the standard, so we do not give the multiple, the clause (it has been renumbered between editions) or the test method. It tests the luminaire’s own suspension. It does not tell you the ceiling can take it.
The load path and who is responsible
A heavy chandelier is a chain of links, and the load goes up through every one of them to the structure. The drawing shows the links and who is responsible for each. The point to hold on to is that the chain is only as strong as its weakest link, and the weakest link is often the one nobody looked at: the fixing into the ceiling, or a ceiling that cannot take it.
What the structural engineer needs from you
The structural engineer cannot check what has not been declared. Give them this, in writing, before the fixing is designed. Where a figure is not yet known, say so and say when it will be.
- Declared weight of the fitting as installed: glass, metal, lamps, any drops or additions, from the partner workshop’s shop drawing, with a tolerance and how it was found.
- How the load is applied: one point or several, the position of each, and whether a canopy spreads it.
- The suspension: the primary chain, rod or cable, and any secondary line, with the rating the partner workshop declares for each part.
- The ceiling construction above the fixing point: slab, joists, steel, lath and plaster, or a suspended ceiling, from the structural drawings or a survey.
- Loads other than the hanging weight: lifting it into place, hanging it from a hoist, cleaning and re-lamping, and anything that could swing or pull it. The engineer decides whether and how these are allowed for; do not supply a factor yourself.
- Later changes: any extra tier, drop or lamp that could be added, and who must be told.
Getting a weight you can rely on
Why this sheet has no weight table. Chandelier weights vary widely with size, glass thickness, the metal in the frame and the number of arms. Published figures for similar fittings run from a few kilograms to well beyond what a ceiling rose is made for, but a general band by diameter would be a guess dressed as data, and a guess is the wrong thing to hand an engineer. Only the partner workshop making the fitting can state its weight, and it should be weighed or calculated for the final design.
What to ask the partner workshop to declare. The weight of the finished fitting without packing; the weight of the heaviest part that is lifted on its own; the weight again if lamps or additions are changed; the rating of the chain, rod or cable and the canopy fixing, with the basis for it; and a statement of how the weight was found. Put the weight on the shop drawing and ask for it to be signed off with the drawing, as in our sheet on shop drawings and mock-ups for bespoke lighting.
Who owns the safety factor. Do not state a universal safety factor in the specification. The engineer who designs the fixing chooses how to allow for the uncertainty and the way the load is applied. The designer’s job is to supply honest numbers and make sure someone qualified signs the fixing off.
Duties on designers. Regulation 9 of the Construction (Design and Management) Regulations 2015 requires a designer, in preparing or changing a design, to eliminate foreseeable risks to people who maintain or clean the structure so far as reasonably practicable, and to pass on information about risks that remain. A heavy fitting over a lobby or stair is a foreseeable risk to the people who hang, clean and service it, so record the load, the fixing and the access in the design information.
Specification wording
Paste into your schedule or specification and replace anything in [square brackets] with your own figures. Wording is a starting point: your specification governs.
The supplier is to state the declared weight of fitting [tag] as installed, including glass, metalwork, lamps and any additions, in kilograms, with a tolerance of [±value, to be agreed] and the method by which it was found [weighed / calculated]. The weight is to be shown on the shop drawing [ref] and re-confirmed in writing if the design changes.
The supplier is to state the rating of the chain, rod or cable, the canopy fixing and each connecting component of fitting [tag], and the basis of each rating [test / calculation / manufacturer’s declaration]. These ratings are to be supplied to the structural engineer before the fixing is designed.
The fixing of fitting [tag] to the building structure is to be designed and approved by [structural engineer] against the declared weight and the construction of [ceiling type] at [location]. No load is to be carried by plasterboard, plaster, a ceiling rose or a suspended ceiling unless the engineer has approved that arrangement in writing. [Approval ref.]
Any increase in the weight of fitting [tag], including added drops, tiers or lamps, is to be notified to [designer] and the structural engineer before it is made. The fitting is not to be hung until the engineer’s approval of the fixing and the declared weight is on file.
Terms used on this page
- Load path
- The route a load takes from where it is applied, through each connecting part, into the structure that finally carries it.
- Dead load
- A load that is permanently present, such as the weight of the building and fixed fittings. Requirement A1 of the Building Regulations refers to combined dead, imposed and wind loads.
- Point load
- A load carried at one small area, such as a single fixing, as distinct from a load spread over a surface.
- Canopy (ceiling plate)
- The cover at the ceiling end of a pendant or chandelier that hides the fixing and wiring; on a heavy fitting the structural fixing sits behind it.
- Ceiling rose
- An accessory that connects the flexible cord of a pendant to the ceiling wiring. Ordinary roses are made for ordinary light fittings, not heavy decorative ones.
- Declared weight
- The weight the supplier states for the fitting as installed, written on the shop drawing and used by the engineer.
Standards and sources
- Building Regulations 2010, Schedule 1, Part A (A1 Loading): read 7 Nov 2026.
- Approved Document A: structure (2013 edition): listing read; the PDF was not read.
- BS 7671:2018+A4:2026 Requirements for electrical installations: status from search summaries only (published 15 Apr 2026); text not read. Regulation 559.6.1.5 read in an IET summary of the 2008 edition.
- BS EN IEC 60598-1 Luminaires, general requirements and tests: paywalled; text not read; confirm the edition and the suspension clause.
- Construction (Design and Management) Regulations 2015, reg 9: read 7 Nov 2026.
Questions we are asked
How much weight can a ceiling rose hold?
It depends on the rose and the fixing behind it, and the maker’s rating applies. A figure of about 5 kg is quoted for ordinary pendants in an IET summary of the 2008 wiring regulations, as the least a fixing for a pendant should carry. It is not a rating for a heavy chandelier, which needs a structural fixing designed by an engineer.
How heavy is a Murano chandelier?
It varies with size, glass thickness, metal and number of arms, so there is no reliable general figure. The partner workshop must state the declared weight of the actual fitting on the shop drawing, and the engineer designs the fixing from that.
Can I hang a chandelier from plasterboard?
Not as the load path for a heavy fitting. Plasterboard and plaster are linings. The load must reach the structure above, with a fixing designed and approved by a structural engineer.
What safety factor should I specify?
Do not specify one yourself. The structural engineer who designs the fixing decides how to allow for the loads and the uncertainty. Your job is to supply an honest declared weight and make sure the engineer signs off.
Who is responsible if a chandelier falls?
That depends on the contract and on what each party was asked to do and did. Make the split explicit: the supplier declares weight and component ratings, the engineer designs and approves the fixing, the installer fits to that design. This sheet is not legal advice; take advice on your own contract.
Does the luminaire standard guarantee the ceiling will hold?
No. BS EN IEC 60598-1 tests the luminaire and its own suspension. The building’s ability to carry the load is an engineering question under the Building Regulations.
Download the factsheet
A two-page A4 PDF with the load path, the responsibility table, what to tell the structural engineer, and wording to paste into your specification.