Spacing Recessed Lights In Great Room - Electrical - Contractor Talk

Spacing Recessed Lights In Great Room

 
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Old 03-07-2018, 08:08 AM   #1
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Spacing Recessed Lights In Great Room


I am installing 4” dimmable LED recessed lights in a great room. The room is 23' 1/2" x 22' 1/4”. (281” x 265”). There is a kitchen in one corner and the rest of the space is free floating for dining and living space.

My question is how do you space the lighting in the room. I’d like to start by placing lights in the kitchen and then work my spacing out to the rest of the room.

My kitchen cabinets are 24” deep. Should I place my first light off the kitchen wall at 30”? That should provide ample lighting for the countertop space. And then center the next light on the kitchen peninsula? That works out to 5’" feet from the first light. The peninsula is drawn incorrectly in the diagram - it should be 38” wide. I extended it in pencil. The rest of the lights (3 more for a total of 5) in that column run at 4’ 6" spacing so that the 5th light ends up 30” from the opposing wall. Will the transition from 5' spacing to 4'6" foot spacing be obvious?

I will apply the same logic on the row of lights. Start at 33” off the wall, then space the next 3 lights (total of 4) 5’6” apart. That will leave the forth light 34 1/2” off the opposing wall.

All of the lights will be lithonia bright white 3000K 4” LED on a lutron dimmer EXCEPT the lights by the fireplace and brick wall which will be 4” recessed gimbals.

Is this a sound lighting plan? Are there too many lights in the room?

THANKS!!












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Old 03-07-2018, 08:27 AM   #2
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Re: Spacing Recessed Lights In Great Room


http://recessedlighting.com/recessed...ng-calculator/

I used the above calculator and it worked great.

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Old 03-07-2018, 09:10 AM   #3
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Re: Spacing Recessed Lights In Great Room


4-inch, 5-inch, 6-inch, 7-inch..... totally meaningless.

What matters is the photometrics of the lamp itself. How much light does it produce, and how does it distribute it?

The other most important factor in the equation is height. 8'? 9'? And is the ceiling flat or vaulted?
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Old 03-07-2018, 09:42 AM   #4
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Re: Spacing Recessed Lights In Great Room


Quote:
Originally Posted by 480sparky;
4-inch, 5-inch, 6-inch, 7-inch..... totally meaningless.



What matters is the photometrics of the lamp itself. How much light does it produce, and how does it distribute it?



The other most important factor in the equation is height. 8'? 9'? And is the ceiling flat or vaulted?


Ceiling is 10’1”.
Light output is 675 lumens.




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Old 03-07-2018, 10:04 AM   #5
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Re: Spacing Recessed Lights In Great Room


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Ceiling is 10’1”.
Light output is 675 lumens.




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You might also want to know the beam spread angle, but I am not sure if that is listed on those trims or bulbs.

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Old 03-07-2018, 10:10 AM   #6
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Re: Spacing Recessed Lights In Great Room


Photometrics............... like this.
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Old 03-07-2018, 12:30 PM   #7
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Re: Spacing Recessed Lights In Great Room


Looks like a lot of cans, but only four in the kitchen. I would add under cab lights for task lighting, and maybe pendents over the island.

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Old 03-07-2018, 05:18 PM   #8
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Re: Spacing Recessed Lights In Great Room


Quote:
Originally Posted by jeffmattero76;
You might also want to know the beam spread angle, but I am not sure if that is listed on those trims or bulbs.

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Jeff with 10 foot ceilings the beam spread is 24 ft.





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Old 03-07-2018, 05:31 PM   #9
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Re: Spacing Recessed Lights In Great Room


Here's what I would do:

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Old 03-07-2018, 06:45 PM   #10
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Re: Spacing Recessed Lights In Great Room


Are there upper cabinets or n the kitchen? Is the peninsula totally open or does it have uppers? 10’ ceiling it’s probably open.
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Old 03-07-2018, 06:51 PM   #11
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Re: Spacing Recessed Lights In Great Room


No uppers shown in the plans.
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Old 03-07-2018, 07:10 PM   #12
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Re: Spacing Recessed Lights In Great Room


There are upper cabinets on the back wall where the sink is. No cabinets over the peninsula. There will be a range hood with a light over the cooking surface.


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Old 03-07-2018, 07:26 PM   #13
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Re: Spacing Recessed Lights In Great Room


Quote:
Originally Posted by 480sparky;
Here's what I would do:


Thanks - I was under the impression lights in a large room had to be symmetrical. This opens up options



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Old 03-07-2018, 07:32 PM   #14
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Re: Spacing Recessed Lights In Great Room


What Ken drew is symmetrical. But it's your place, you can do whatever you want.
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Old 03-07-2018, 07:45 PM   #15
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What Ken drew is symmetrical. But it's your place, you can do whatever you want.
Well, not totally. The kitchen lights don't line up with anything else, neither do the two over the fireplace.
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Old 03-07-2018, 08:09 PM   #16
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Re: Spacing Recessed Lights In Great Room


Don't argue with me, whippersnapper. Those are zones with their own symmetry.
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Old 03-08-2018, 06:04 AM   #17
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Re: Spacing Recessed Lights In Great Room


Quote:
Originally Posted by 480sparky;
Here's what I would do:

why is the spacing between 2 & 3 greater than the spacing between 1 & 2. See pic




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Old 03-08-2018, 08:19 AM   #18
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Re: Spacing Recessed Lights In Great Room


Quote:
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why is the spacing between 2 & 3 greater than the spacing between 1 & 2. See pic




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Because I didn't use a $5000 CAD program.
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Old 03-12-2018, 04:29 PM   #19
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Re: Spacing Recessed Lights In Great Room


Quote:
Originally Posted by 480sparky;
Here's what I would do:


Went with your zoned layout and it came out great. Thanks 480!



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Old 03-12-2018, 04:37 PM   #20
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Re: Spacing Recessed Lights In Great Room


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Went with your zoned layout and it came out great. Thanks 480!



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