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Recommended Room Dimensions

post #1 of 5
2/21/08 at 2:51pm
Thread Starter 
I am going to build a HT in my basement and before I start I need suggestions on room dimensions.

Here are some Golden Room Ratios below. Are these what I am to design to?


Room Type Ceiling Room Width Room Hight

Room 1 C1.14C 1.39C
Room 2 C 1.28C 1.54C
Room 3 C 1.60C 2.33C
Room 4 C 1.60C 2.60C
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post #2 of 5
2/22/08 at 3:26am

Re: Recommended Room Dimensions

Here are some Golden Room Ratios below. Are these what I am to design to?


Room Type Ceiling Room Width Room Hight

Room 1 C 1.14C 1.39C
Room 2 C 1.28C 1.54C
Room 3 C 1.60C 2.33C
Room 4 C 1.60C 2.60C



I know I'm new around here, But what in the world does all that mean, You should make the theater room as large as you can with no obstructions in the way, Steel beams or overhead piping, Mine after finishing is 12 foot wide and 30 feet long, The Setback is 7 foot ceiling height, Can it really be to big, I think not, A place to go and relax and enjoy what you have created is a wonderful place to be whether its 10x10 or 15x30, Whatever your needs are is correct for you.
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post #3 of 5
2/22/08 at 3:59am

Re: Recommended Room Dimensions

Dan, I believe Vince is concerned about building an HT that will have as close as possible to ideal ratios. A square room, such as the 10x10 you mention, is a nightmare for acoustics. In such a room you will likely end up with lots of peaks and valleys at various frequencies which will be very hard to tame and could hinder the theater experience if you are not willing to put the time/money/effort into acoustical treatments and setup.

Vince, the golden ratio is approximately 1.62, so your ideal ratio would be 1:1.62:2.6244. If you have 7ft ceilings you could translate this to 7ft x 11.34ft x 18.37ft.
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post #4 of 5
2/22/08 at 9:21am

Re: Recommended Room Dimensions

The "Golden Ratio" is a ratio of the length to width of a rectangle, that is considered lovely to look at, but is not for designing listening spaces.

Seppmeyer's "Golden Room Ratios" are a set of width-to-length-to-height ratios designed to reduce standing waves all piling up at the same frequency, which you would have in a cubical room.

If you can match one of Seppmeyers' ratios, you will be doing well. These are not the only choices, though. My room, by pure accident, fits one of these profiles in floor plan. If i could raise the ceiling about 7 feet, it would match very nicely!

If it just happens that you can build a room to these ratios, or build one anywhere close to these ratios, without sacrificing size and convenience,then by all means build it! Don't feel that you must be a slave to it, though. There are probably very few theaters or home theaters built this way.
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post #5 of 5
2/22/08 at 9:23am

Re: Recommended Room Dimensions

Ah...I just noticed that your headings might be a bit confused. You have Ceiling, which should be above the big C - that means ceiling height. Then you have "room width", which is some multiple of ceiling height. Then you have "room hight" where it should say "room length" - again some multiple of ceiling height.

carry on.....
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