Building new room for home theatre from scratch

[hardcore_gamer99]

Ok so i am getting ready for dedicated theatre room. Normal bedroom has many issues. I want to know the list of all the material required to build the room. After concrete walls, What all material required to stick on walls and all that, Please guide thanks. On my roof this area is idle. I will first build concrete walls then treat it.

 

[keroo1099]

Ok so i am getting ready for dedicated theatre room. Normal bedroom has many issues. I want to know the list of all the material required to build the room. After concrete walls, What all material required to stick on walls and all that, Please guide thanks. On my roof this area is idle. I will first build concrete walls then treat it.

I don't think that space is wide enough for a HT room. It looks like it's only 6-7' wide.

I suggest you first take measurements of the intended space and post for us to suggest ideas. We also need to know if the walls below are load bearing or is the house a frame structure.

 

[hifimaddy]

@keroo1099 true
This space looks like it's not even possible for a home theatre. The width looks like 4-5 feet. At least consider a width of 10 feet minimum for an ideal home theatre.

as per ai suggestion below .

The minimum recommended room size for a home theater is around 10 feet by 12 feet (120 square feet). This allows for comfortable seating, proper sound travel, and an immersive viewing experience. Ideally, a rectangular room is preferred over a square one to optimize sound dispersion.

For a larger and more immersive setup, a room size of 24 feet by 15 feet with a 9-foot ceiling is considered ideal. The smallest practical space for a home theater is 9 feet by 6 feet, but this may limit the experience.

 

[hardcore_gamer99]

hi thank you. Space is not an issue. I will build it on my main room. Main thing was about all the stuff material needed after concrete walls are done. Can i have list please:

 

[hifimaddy]

You can share the room size you are going for. If you share the dimensions, others can help you finalise the ideal size.

What Dolby Atmos configuration are you going for? And what is your budget? If you have a budget, you can consult a theatre builder; they can build and finish it with all the materials and equipment.

If you are doing it alone, then do you want soundproofing? Or only budget for acoustic panels?

Before the wall plastering and concrete roof prewire the speaker points, electrical lines, internet point, other ports according to your needs, and light points should be done. (take a direct electrical line from your main); also consider AC points. (If you are soundproofing your theatre, then you don't need to prewire it; they will take the wires inside the panels.)

If I miss some points, others can mention it too.

 

[ItsBabu]

hi thank you. Space is not an issue. I will build it on my main room. Main thing was about all the stuff material needed after concrete walls are done. Can i have list please:

Did you get a chance to go through below post? It may cover some information that you are looking for.

Post in thread 'Room Acoustics & Setup Tips for First-Time Home Theatre Users'

May 14, 2025

Hi, Congratulations for your journey. This is how my room is designed. 13.5ft W X 21ft L X 10ft H

I have referred Anthony Grimani suggestions for the acoustics treatment. All the best!

• rainbowsong2000

• 

 

[hardcore_gamer99]

You can share the room size you are going for. If you share the dimensions, others can help you finalise the ideal size.

What Dolby Atmos configuration are you going for? And what is your budget? If you have a budget, you can consult a theatre builder; they can build and finish it with all the materials and equipment.

If you are doing it alone, then do you want soundproofing? Or only budget for acoustic panels?

Before the wall plastering and concrete roof prewire the speaker points, electrical lines, internet point, other ports according to your needs, and light points should be done. (take a direct electrical line from your main); also consider AC points. (If you are soundproofing your theatre, then you don't need to prewire it; they will take the wires inside the panels.)

If I miss some points, others can mention it too.

Hi room size will not be square definitely as it has null issues. I will try rectangular. how about 18feetx10feet? Actually i want to do it all myself as i will be dealer in my city soon. Yes i will need an ac as well i want soundproofing. I want it just like we go to cinemas with those blue walls I want it same as commercial cinemas

 

[hifimaddy]

Do some research about room dimensions. If you can only go for 10 feet, then it's okay. But if you are flexible, then go with 20 ft x 12 ft or 21ft x 14 ft for a better experience. The audioadvice website had a home theatre design tool that was perfect for initial stage planning. It was fun, but I don't know if they are doing that service for free now. You can check it.

To me, local carpenters or workers have limited knowledge about soundproofing works, so if you are doing it that way, I don't recommend it. (It's a personal option of me), so you can give the soundproofing work to a theatre consultant or a professional soundproofing team for a neat and efficent work.

You check this website for soundproofing materials and products. They also calculate the material quantity according to your room dimensions. with a fee.

https://www.auralexchange.com/

 

[hardcore_gamer99]

Do some research about room dimensions. If you can only go for 10 feet, then it's okay. But if you are flexible, then go with 20 ft x 12 ft or 21ft x 14 ft for a better experience. The audioadvice website had a home theatre design tool that was perfect for initial stage planning. It was fun, but I don't know if they are doing that service for free now. You can check it.

To me, local carpenters or workers have limited knowledge about soundproofing works, so if you are doing it that way, I don't recommend it. (It's a personal option of me), so you can give the soundproofing work to a theatre consultant or a professional soundproofing team for a neat and efficent work.

You check this website for soundproofing materials and products. They also calculate the material quantity according to your room dimensions. with a fee.

https://www.auralexchange.com/

I myself want to be consultant. Can you tell all material which is used

 

[hifimaddy]

If you are living in a very noisy environment, then you should do soundproofing first . If there are no issues with sound, then consider acoustic treatment. .

 

[hardcore_gamer99]

If you are living in a very noisy environment, then you should do soundproofing first . If there are no issues with sound, then consider acoustic treatment. .

soundproofing is required 100%

 

[rainbowsong2000]

1. I used normal Cement blocks for my dedicated HT at terrace. in feet 13.5 W X 21 L X 10 H.
2. Try to build without big windows. if need have a minimal just for ventilation.
3. Concrete walls without opening or small window is fine for sound proofing. but you should focus on sound absorption after the construction.
4. If you consider for serious sound proofing then check out the baffle walls... but it will reduce your space.
5. Focus on concealed wiring... speaker cables, subwoofer cables etc. should run through.
6. Try to have thicker doors normal doors will rattle..
7. Have dark shade of paint.
8. If possible false ceiling, with acoustic boards.. but people suggest go for wooden planks for false ceiling to reduce rattle
9. Decide where to keep the devices and provide electrical points accordingly (Subwoofers would be missed all the time)
10. Avoid full sound absorption. there are many consultants who offer to construct the HT with glamorous designs, but if they don't have enough knowledge they will make the room dead.
11. I preferred to do it myself referring various sites and videos.
12. Try to avoid brighter light, i made that mistake
13. Once you start you will gain much knowledge.

Keep exploring all the best!

 

[hardcore_gamer99]

1. I used normal Cement blocks for my dedicated HT at terrace. in feet 13.5 W X 21 L X 10 H.
2. Try to build without big windows. if need have a minimal just for ventilation.
3. Concrete walls without opening or small window is fine for sound proofing. but you should focus on sound absorption after the construction.
4. If you consider for serious sound proofing then check out the baffle walls... but it will reduce your space.
5. Focus on concealed wiring... speaker cables, subwoofer cables etc. should run through.
6. Try to have thicker doors normal doors will rattle..
7. Have dark shade of paint.
8. If possible false ceiling, with acoustic boards.. but people suggest go for wooden planks for false ceiling to reduce rattle
9. Decide where to keep the devices and provide electrical points accordingly (Subwoofers would be missed all the time)
10. Avoid full sound absorption. there are many consultants who offer to construct the HT with glamorous designs, but if they don't have enough knowledge they will make the room dead.
11. I preferred to do it myself referring various sites and videos.
12. Try to avoid brighter light, i made that mistake
13. Once you start you will gain much knowledge.

Keep exploring all the best!


View attachment 91323


View attachment 91324
View attachment 91325
View attachment 91326

View attachment 91327
View attachment 91328
View attachment 91329
View attachment 91330

Thanks a ton. Can you send list of all the stuff needed and links also for reference. What is false ceiling and true one

 

[rainbowsong2000]

Thanks a ton. Can you send list of all the stuff needed and links also for reference. What is false ceiling and true one

Its a extensive list to write here and what are the stuff you are looking for specifically. Happy to guide your if you DM.