Hayyy boys, some questions about a projector

... pause ... even for you

 

You can project on the wall. Screen will be better, but not necessary. As long as it's a short throw you shouldn't have any issue (which it more than likely is).

I have an LED smart projector that I use occasionally. It used to be my primary source for tv etc, until I ended up picking up a 4k tv.

 

Short throw? Yes. You should be able to get to 100" with ~6'

 

I think @LCAhmed is a projector snob.

 

@Pen15clubber
Here's an old photo from back when I first received the projector and lived in a small apartment few years back.
That's an old 42" tv below it.

Might be a big photo....

Spoiler

 

Why spend money on a projector and not have a screen? Get a screen.

12 foot gives 107" diagonal

http://www.projectorcentral.com/Optoma-HD142X-projection-calculator-pro.htm?add=9503

you need some better measurements.

 

It will all depend on what your projector allows you to do. Some can project 100" screen in as little as like 6 feet away. Others need a full 10-15 feet (this is referred to as the throw). My Projector is about 10-12 feet away and only projects a 78" screen roughly (still takes up the entire wall though). I use the keystone since I am angled from the corner right of the room, however if you're a perfectionist, you may never have a perfectly level screen. I can use the light in the room and still project just fine, however if I get too much natural lighting, that completely kills the projection. I have black out curtains for such events.