Questions about building a seating platform

Discussion in 'Home Theater Projects' started by Andres Munoz, Aug 19, 2003.

  1. Andres Munoz

    Andres Munoz Cinematographer

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    I should mention the layout of my basement first. Please bear with me. It's 36'x13'. I built a front wall 4 feet from the the wall that faces the front of the house. The TV, equipment rack and DVD rack are built into this front wall. The 4 feet in between gives me access to the back of the equipment.

    The HT extends 18' from the newly built front wall. The remaining 14' will be some sort of lobby/family room.

    There is no back wall in the HT. A curtain will separate the HT and the lobby. The reason for that is that I'd like to use most of the lenght of the basement for when I have family gatherings or parties with friends, and I wouldn't be able to do that if I had a wall there. With the curtain, I just slide it to the side and the whole thing is opened up.

    Onto my questions now:

    I bought 4 used theater chairs and want to start planning the building of a platform for them. But here's the thing: Since my HT will also serve as a party room, I'd like all seating (a sofa and the theater chairs) to be able to be moved to the side walls (parallel to them).

    I'd like to be able to push the platform to one of the side walls and for that reason, I can't permanently screw the platform to the floor.
    Has anyone done anything like that?

    My second question has to do with installing bass shakers to the platform. Any ideas on how to install them so they're not that visible but I can still have easy access to them? (While keeping in mind that I might need to move the platform to a side wall).

    Pretty challenging huh? Any suggestions?
     
  2. Trace Ahlers

    Trace Ahlers Stunt Coordinator

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    I suggest putting low profile rollers on the bottom of the platform. Is the floor carpeted?
    As for the bass shakers, I mounted mine underneath the platform and then wired them to a Radio Shack multi speaker connector plate and then mounted the plate into a cutout on the platform. The speaker wires coming from the amp are plugged into that via banana plugs.
    Trace
     
  3. Andres Munoz

    Andres Munoz Cinematographer

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    Yeah Trace, the floor is carpeted. Rollers huh? Interesting. I'll keep that in mind. But wouldn't the platform move (roll around) when people step in it to sit down?

    As far as the shakers, yeah I was thinking about a connector plate as well. But if something is not working and you need to check the connection AT the bass shaker, do you have to remove the seats and the top of the platform in order to get to the shakers?
     
  4. Jay Mitchosky

    Jay Mitchosky Producer

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  5. Andres Munoz

    Andres Munoz Cinematographer

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    Thanks Jay.
     
  6. MikeWh

    MikeWh Second Unit

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  7. Andres Munoz

    Andres Munoz Cinematographer

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    Thanks for the link Mike.
     
  8. BenSC

    BenSC Stunt Coordinator

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    How heavy is this thing going to be? If it's carpet, get some of those $5 furniture movers shaped like upside down frisbies. Slide 4 of them under the corners and push away. Then there are no problems with it moving on it's own, either.
     
  9. Andres Munoz

    Andres Munoz Cinematographer

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    Well, that's what I wanted to know. Since I might need to move it, how should I build this thing? Is it OK if it's not that heavy? What type of insulation or what happens if I don't put insulation?
     
  10. Mark McGill

    Mark McGill Stunt Coordinator

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    I've just finished building my riser. It's approximately 12'x6'. By the time you use 2"x10" joice and base, plus two sheets of 3/4" flooring, plus a little carpet, then put chairs etc on it, that sucka weighs alot. Mines on carpet and I estimate it weighs around 500-600lbs including a couch. Keep in mind it is alot harder to move anything on carpet. Good luck.
     
  11. Andres Munoz

    Andres Munoz Cinematographer

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    500 lbs? Heck no! [​IMG]
    I can't make mine that heavy.
     
  12. MikeWh

    MikeWh Second Unit

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    I think BenSC wins for most economical/easiest idea to implement. [​IMG] Much better than rollers/casters, as long as the sliders don't tear up your carpet. The weight of the riser should keep the sliders from moving around too much, when people are stepping up and down on the thing. The sliders also distribute the weight better than the bottoms of wheels. I'd try to find a relatively large one... say 4" or more in diameter and make feet for the riser that are big enough to use as much of the slider's surface area as possible. Depending on how wide the riser is, you might want to use 6 feet (3 along the front and 3 along the back).

    Here's a link to what we're talking about:
    http://www.alltvstuff.com/mm1.html

    I seem to recall Home Depot and Lowes carried things that are similar to theses, but not sure if they have them this big.

    Apparently, they're also available at Office Depot:
    http://www.officedepot.com/ddSKU.do?level=SK&id=283822
     
  13. Andres Munoz

    Andres Munoz Cinematographer

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    Yeah, sliders are a good idea too. Thanks.
     
  14. Trace Ahlers

    Trace Ahlers Stunt Coordinator

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    Mike has the right idea.
    As for your connections, I had the same concern.
    I just triple-checked all the wiring and the connectors before closing it all up. If your platform is movable, you could always tip it over if you had to.
    Trace
     
  15. Jay Mitchosky

    Jay Mitchosky Producer

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  16. MikeWh

    MikeWh Second Unit

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  17. Andres Munoz

    Andres Munoz Cinematographer

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    Yeah Mike, great question.

    What accoustic properties would a platform with no bottom have?

    I have some other questions:

    Would it rattle too much with no bottom?
    If a movable platform has no bottom, how can I stuff it with insulation?
    Can the pink insulation be used? Is that not good enough?
     
  18. MikeWh

    MikeWh Second Unit

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  19. Andres Munoz

    Andres Munoz Cinematographer

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    So Mike...should I use glue in addition to screws? [​IMG]

    I will also be waiting for the experts to chime in.
     
  20. MikeWh

    MikeWh Second Unit

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    Yes, glue/screw/glue/screw/glue/screw. [​IMG]

    (Sounds like a Mel Brooks routine).
    King Louis: Hump or Death? Hump or Death?? Hump/death/hump/death?
    Mademoiselle Rimbaud: Humperdink?
     

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