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Old 03-17-2017, 04:03 PM   #1
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Default 38x17 foot room how many Lotus?

I'm pricing a layout for a basement. One section of the basement is completely open and 38x17 feet. No columns and has an 8 foot ceiling.
There will be a ping pong table and 1/4 of the room at one end will have a wall mounted tv and gaming area.
If I go 6 feet apart, the lights will be about 5 feet away from the walls. I know these lights are bright though but I have never separated them beyond 4 to 4.5 feet.
Any thoughts?
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Old 03-17-2017, 05:06 PM   #2
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On your 17' dimension, go three rows 68" apart and 34" from the wall. On your 38' dimension, go seven rows 65" apart and 33" from the wall. 21 fixtures.
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Old 03-17-2017, 05:08 PM   #3
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NDC, I know that 99cents is talking about 4". Is that what you were planning on using? Because I believe you have used the 6" in the past.
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Old 03-17-2017, 05:12 PM   #4
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NDC, I know that 99cents is talking about 4". Is that what you were planning on using? Because I believe you have used the 6" in the past.
I'm using 4"
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Old 03-17-2017, 05:18 PM   #5
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On your 17' dimension, go three rows 68" apart and 34" from the wall. On your 38' dimension, go seven rows 65" apart and 33" from the wall. 21 fixtures.
This is great thanks. You think it's a bad idea if I go with 6 rows instead and add more spacing from the walls?

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Old 03-17-2017, 05:26 PM   #6
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This is great thanks. You think it's a bad ideaif I go with 6 rows instead and add more spacing from the walls?
Huh?
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Old 03-17-2017, 05:27 PM   #7
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Huh?
He means to start the row the full 65" away from the wall which will cut it down to 6 rows instead of 7. I am wondering that too. Do you need them to be less than 3' off of the walls?
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Old 03-17-2017, 05:28 PM   #8
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He means to start the row the full 65" away from the wall which will cut it down to 6 rows instead of 7. I am wondering that too. Do you need them to be less than 3' off of the walls?
Yes this exactly. I dont want Telsa to come in here and ask if its a grow op
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Old 03-17-2017, 05:32 PM   #9
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Your distance to the wall is always half the distance between fixtures.
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Old 03-17-2017, 05:43 PM   #10
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Watch out when dealing with entertainment spaces.

There is a strong tendency to over illuminate them.

You don't want a 'warehouse// open office' look to the light fixtures.

You absolutely want provisions for dimming -- probably every location.

The area near the TV display should be thought of as its own space -- even though it's common space.

Surround sound speaker systems are also something to be considered.
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Old 03-17-2017, 05:49 PM   #11
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Your distance to the wall is always half the distance between fixtures.
I know nothing about lighting design, but it just seems like that's a lot of lights and it seems like they are close to the wall @ less than 3'.

I guess if it's too much a dimmer can take care of it pretty easily.
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Old 03-17-2017, 07:33 PM   #12
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Consider wall-washing pot lights for the area behind the TV... to back light it. Put them on dimmers.

Sounds like another man-cave... so consider a dry bar or a wet bar, too.

You ought to be paid separately for designing the space... 'Cause this kind of effort is not trivial.
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Old 03-17-2017, 10:25 PM   #13
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Consider wall-washing pot lights for the area behind the TV... to back light it. Put them on dimmers.

Sounds like another man-cave... so consider a dry bar or a wet bar, too.

You ought to be paid separately for designing the space... 'Cause this kind of effort is not trivial.
Yes great advice. You are correct I should charge for this work but I'm still green in this area so I'm chalking up as experience. If I try to charge for something like this around here in this saturated market, I will no get any work. When I'm busy I'll charge.
If I don't get the job, at least I'm getting something out of it and maybe the next layout I do will be easier and I won't miss as much.
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Old 03-17-2017, 10:28 PM   #14
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This basement will also have a bedroom. I know I have to add a smoke/strobe to the room but how are the existing smokes wired? Are they usually maxed out on their circuit? I'm assuming I have to tie into the existing alarms in the home and there is one at the bottom of the basement stairs.
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Old 03-18-2017, 12:01 AM   #15
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http://www.visual-3d.com/tools/interior/
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Old 03-18-2017, 12:35 AM   #16
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There are no basements in my town.

Fact of life.

But...

For you...

I'd recommend establishing yourself as an EXPERT in man-caves.

A man-cave is EXACTLY what the customers want to build to.

The SECOND you find out that a TV display is part of the scheme => man-cave.

Here, in my town, we have a LV contractor that is SOLELY oriented towards man-caves.

He's not starving.

Hint.

Usually he has to build the 'cave' in the first place. (!!!)

My immediate neighbor spent $140,000 on his man-cave.

It came with a pool, too.
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Old 03-18-2017, 01:08 AM   #17
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Quote:
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I know nothing about lighting design, but it just seems like that's a lot of lights and it seems like they are close to the wall @ less than 3'.

I guess if it's too much a dimmer can take care of it pretty easily.
I relates to overlapping cones of light. You don't want circles of light on the floor. You want each cone to overlap halfway into the cones beside it. I tried to find an online diagram but couldn't find one.

You put fixtures closer to the wall since light will bounce back and maintain uniformity. I hope that all makes sense.

Recessed lighting started with retail and commercial and then moved into residential. Its purpose is to provide uniformity in light levels. Personally, I don't like uniformity in living spaces because you get a gymnasium effect. Shadow and light is much more natural. Telsa is absolutely correct. You want to provide switching options and dimming. The only time you want uniformity is when you're vacuuming the floor.

The Lithonia program is giving 18 foot candles at a 2.5' work plane with 21 of their wafer fixtures. That's close to ideal, maybe a little on the high side. I'm not sure if these are initial or maintained light levels but who knows what lumen depreciation is with LED's?
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Old 03-18-2017, 03:52 AM   #18
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To buttress 99....

Think of the lighting in a theater.

... in a bar.

Should you win such a job -- dang it -- take TONS of digital photos.

Before -- Rough-in -- pre-Trim -- Final -- the works.

Use such photos in your PORTFOLIO of work.

Yes, yes, yes... anyone dealing with the public HAS TO HAVE a portfolio of work.

Said portfolio is that of completed work... your work... your art... your craft.

Lack of your portfolio is holding you back from your righteous place in the economic order.

I do a lot of underground. So my best work is buried.

In a sense, every electrician's work is buried -- as it's invisible to our customers.

We install magic... that even a child can switch on.
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Old 03-18-2017, 07:12 AM   #19
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What Lithonia program? Don't hold out on us!
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Old 03-18-2017, 07:55 AM   #20
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Post #15 .
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