UK Hanging a 30kg Chandelier

[Josh555]

Hi need to hang a 30KG chandelier on a metal stud in a new build apartment. I’m not used to hanging such a heavy light on metal joist so a bit unsure on how to approach this

Im thinking of drilling 3 8mm holes through the metal stud and adding 3x toggle bolts which are rated at 30KG each to latch onto the metal joist. What would you guys do. Would my way be ok or is there a better way

 

[OnlQQker]

When you say metal stud do you mean an RSJ (rolled steel beam) or metal stud as in trunking/ceiling grid.

It's hard to say what to do without knowing what you're actually fixing it too. The fixing could be sufficient but what it's fixed to might not be. Any chance of a picture?

 

[Josh555]

This type it’s not RSJ

 

[UNG]

Before you even think about installing this weight of fitting you need to establish what the design loading of the ceiling frame actually is, without this you could end up with that Del Boy moment.
Any excessive point loading could cause deflections across the ceiling or it could sag where the load is attached, for fitting of that weight I would be looking to get some studs back to the solid ceiling structure to minimise the grid loading

In the past with framed or suspended ceilings at the design on install stage we have requested the ceiling fixers install more fixings to accomodate the extra load of the light fittings being installed or put our own fixings in before the ceiling is completed to accomodate unusual fittings like this

 

[Josh555]

Before you even think about installing this weight of fitting you need to establish what the design loading of the ceiling frame actually is, without this you could end up with that Del Boy moment.
Any excessive point loading could cause deflections across the ceiling or it could sag where the load is attached, for fitting of that weight I would be looking to get some studs back to the solid ceiling structure to minimise the grid loading

In the past with framed or suspended ceilings at the design on install stage we have requested the ceiling fixers install more fixings to accomodate the extra load of the light fittings being installed or put our own fixings in before the ceiling is completed to accomodate unusual fittings like this

Appreciate it my friend in terms of finding out the load of the ceiling frame how would I go about doing that. Never had this problem before so unsure how to go about it

 

[Dan]

When you say metal stud do you mean an RSJ (rolled steel beam) or metal stud as in trunking/ceiling grid.

It's hard to say what to do without knowing what you're actually fixing it too. The fixing could be sufficient but what it's fixed to might not be. Any chance of a picture?

I was going to post that haha

 

[OnlQQker]

Could you post another picture of where those bolts go into the concrete?
I'm assuming they are going into concrete, but I can't see...

It may be possible to reinforce the ceiling frame with an M10 and chain (you may need to rod either side directly next to light fitting)

SHIELD ANCHORS EYE BOLT CONCRETE MASONRY FIXINGS M6 M8 M10 M12 EYEBOLTS ANCHOR | eBay

Forged Type Eyebolts Zinc PlatedFor use with heavy weight fixtures in solid walls. Eye Bolt Shield Anchors suitable for use in concrete and solid brickwork. M8 Thread Size - 14mm Hole Required. M12 Thread Size - 20mm Hole Required.

www.ebay.co.uk

Or threaded rod using the wall plug from a concrete fixing

M6 M8 M10 M12 Fully Threaded Rod Stud Bar Studding Zinc With Full Hex Nuts KAF | eBay

M6 M8 M10 M12 Fully Threaded Rod / Bar / Studding DIN 976 ZINC Plated With Hex Nuts. Buy 1 Rod, Get 2 hex Nuts. If you buy 10 rods, you will receive 20 hex nuts. They are designed for a nut to be applied on both ends and are often used for electrical, construction and plumbing for hanging purposes.

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Loose Bolt Shield Anchor Heavy Duty Masonry Wall Fixing Brick Rawl M6 M8 M10 M12 | eBay

A heavy duty shield anchor which expands in the substrate. The thick walls of the expanders give the anchor its exceptional grip and allow it to cater for oversized holes caused by powerful drills in weaker materials.

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This would be drilled through existing frame directly where the light fitting is to go.

Alternatively you could fix something like this

Eye Bolt Shield Anchor Wall Fixing Heavy Duty Brick Masonry Zinc M6 M8 M10 M12 | eBay

Note: When fixing into brickwork, mortar joints should be avoided. M6 M8 M10 M12 M16 M20. HEAVY DUTY MASONRY EYE BOLT SHIELD ANCHOR. -Three-pieces expanding sleeve of maximum expansion provides optimal load and safety of use in any substrate.

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And come from that point with a chain.

Again without being able to see it, I'm just trying to give some options. Threaded rods can also be attached to these

using a connector

A Complete Guide to Threaded Rod

Read this comprehensive guide on threaded rod, explaining what threaded rod is, its uses, types, sizes, characteristics, load capacity, materials, and more.

uk.rs-online.com

Not sure if any of this helps but I certainly would not trust that frame to hold it like it is.

 

[DPG]

As above - I don't see how you will be able to rely on a single point of that frame sipporting 30kg. If it was me who had installed the frame then I would void any warranty

 

[littlespark]

Sky Hooks… in the same hardware department as Glass Rivets and a Long Stand….

Sorry

 

[7029 dave]

Priar to the suspended ceiling going up, IMO an RSJ should have been installed and the shandy chain to it. 30KG is a lot of weight.

 

[James]

I think I would bolt a 1m length of unistrut to the ceiling using 4 x M10 expanding wall bolts as above.
then from the centre of the unistrut put an M10 or M12 eye bolt in to hang the chain from.

 

[UNG]

Appreciate it my friend in terms of finding out the load of the ceiling frame how would I go about doing that. Never had this problem before so unsure how to go about it

Ask the architect or better still the ceiling installation company they may point you towards the manufacturers of the ceiling frame and or fixings

Or you could always load test the the ceiling with one of these Home - https://www.hydrajaws.co.uk/