hello, we recently had our siding replaced with hardie board. Where there was a wall mounted light the siding installer left 4" round hole that is slightly less than 1" deep. The old wire just comes out through a hole in the plywood sheathing and there is a 4" diameter x 1/2" thick electrical box mounted directly to the plywood. I think this is pretty similar to what was there originally.

So new siding = new light and the issue is, the light my wife and I picked out has a transformer that is mounted on the back of the mounting bracket and is too long for the space. The transformer itself is almost 1-1/2" long, so obviously if installed in this set up would stick out way too far.

I feel like to accommodate this light I will need a deeper box and one that would penetrate into the wall cavity so that the light is flush with the finished service. Is there a box someone can recommend for this? If I were to cut away the plywood in the same 4" circular hole, I wouldn't have anything to mount a deeper box to.
 

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I'd imagine there will be something suitable, but hopefully our resident American expert @Megawatt might have some ideas as there is a lot more crossover in fittings with Canada.
 
hello, we recently had our siding replaced with hardie board. Where there was a wall mounted light the siding installer left 4" round hole that is slightly less than 1" deep. The old wire just comes out through a hole in the plywood sheathing and there is a 4" diameter x 1/2" thick electrical box mounted directly to the plywood. I think this is pretty similar to what was there originally.

So new siding = new light and the issue is, the light my wife and I picked out has a transformer that is mounted on the back of the mounting bracket and is too long for the space. The transformer itself is almost 1-1/2" long, so obviously if installed in this set up would stick out way too far.

I feel like to accommodate this light I will need a deeper box and one that would penetrate into the wall cavity so that the light is flush with the finished service. Is there a box someone can recommend for this? If I were to cut away the plywood in the same 4" circular hole, I wouldn't have anything to mount a deeper box to.
You can go to Home Depot, Lowes or your local parts house and buy you an extension ring for that box and install a raised cover
 

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Thread starter

Joined
Location
Calgary
If you're a qualified, trainee, or retired electrician - Which country is it that your work will be / is / was aimed at?
Canada
What type of forum member are you?
DIY or Homeowner (Perhaps seeking pro advice, or an electrician)

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Title
Exterior Light Box Depth
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DIY Electrical Advice
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Created
GregPS,
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Megawatt,
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