Mounting lights to deck


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Old 05-07-19, 04:15 PM
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Mounting lights to deck

Starting a new thread for a related but different question.

Can a light like this be mounted directly to the rim joist on my deck? No electrical box needed? Wiring is already there from previous owner. No conduit though. Just loose. Seems weird that the connections would be right against a flammable surface like wood

Are other lighting ideas that can be mounted to a deck using standard line voltage? All the wiring and 3way switches are already in place.
 
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Old 05-07-19, 04:19 PM
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Sorry, this should probably be in the Lighting forum
 
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Old 05-07-19, 05:18 PM
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I will give you a maybe. It will depend on how the light is mounted. If there is a KO (threaded or not) on the back of the fixture, then yes. You can feed the light with conduit or cable directly. If it has slots or holes for mounting to a box, then no, you will need to install a box.
 
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Old 05-08-19, 04:53 AM
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Thanks. It needs a box.

Do you any exterior lights that donít need a box? Canít seem to find any that I can mount directly.
 
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Old 05-08-19, 05:26 AM
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Iím wondering if I use a pancake box and mount the box to the rim joist, then add the light.

Also......right now, the existing wiring under the deck is not in conduit. If I do add conduit along the run, what happens at the point that the wiring travels through the rim joist? Does it remain exposed and simply enters the pancake box?
 
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Old 05-08-19, 02:50 PM
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Wiring under a deck would need to be in either conduit of be UF cable. UF would be easiest as it could be run similar to NM cable indoors. The wiring method would need to be continuous from box to box. You could install the light box on one side of the rim joist, and then another box on the other side with a short nipple between them. Then, run the UF between each box.

Only issue is a pancake box is very small and you would likely want to recess it into the joist. Not impossible, but can be a challenge.

Could you post a link to the light?
 
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Old 05-08-19, 03:50 PM
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Old 05-08-19, 06:38 PM
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Have you actually seen this fixture first hand ?
The online info is sketchy at best. A wet rated fixture with an open back.

The installation guide is generic and doesn't look like that fixture.......installation manual.

Fixture specs (pdf)
 
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Old 05-08-19, 07:09 PM
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Ha ha. I own the fixtures. Iíll upload some pictures tomorrow.
 
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Old 05-09-19, 06:40 AM
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Photos of the actual light attached.

A pancake box does allow it to sit flush against the rim joist.

I’ve discovered the existing wire is NMW10.

Can 2 sets of this wire be used in a 5 cu.in pancake box? There will be a string of 2-3 lights on this line. I’m guessing no way.

Are there other lights like security lights or flood lights that have an integrated electrical box and can be mounted to a wall surface? Or is an electrical box always required?

******
Here’s another version. Higher quality steel. In the Q and A, it says they too will work with a pancake box.
https://www.canadiantire.ca/en/pdp/n...4465p.html#srp
 
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Old 05-09-19, 06:35 PM
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I am surprised that that light is rated for wet locations, but it says so on the fixture.

Can 2 sets of this wire be used in a 5 cu.in pancake box?
Maybe. The box can't but the extra space in the fixture might make it OK.

Here is another option: https://www.homedepot.ca/product/ham...ght/1000410915
 
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Old 05-10-19, 12:48 PM
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What if I go for something like this? Looks like the box is part of the fixture.

https://www.amazon.ca/Sunlite-VTA100...Q6SSXKHJEXN60J
 
 

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