Originally Posted by covertcode
I have tried to show the room size as best as possible
the room dimensions are 12ft long
by 7ft wide
the desk will be flush against the 7ft wide wall the with the projector image above the desk on the wall.
I can get photos of the actual room and real measurements when I get home from work.
OK, the drawing helps. Although this is a strange room with no door. Do you teleport in and out of it ?
First, you have been talking about a 12' throw distance, which is incorrect. You started out saying 11' to 12', then switched to 12' and we all followed along. Throw distance is from the lens to the screen not the rear of the projector, which means that depending on the physical size of the projector -- like the W1070 being 12 inches deep -- you have only 11' or less to the screen.
Second, if you have 53" above the monitor, then why are you limiting your desired screen size to 60"-70" ? (BTW, the custom is to refer to screen size by diagonal and not horizontal measure.) A 60" horizontal measured screen is 68" diagonal. This is far too small to watch movies on from a chair 8' or 10' away. A 94" screen would be a better size for movies and will fit on a 7' wide wall. The W1070 would need to be 10'6" from the screen, which means it would only be 6" away from the rear wall and could sit on a shelf or cabinet 16" deep. The Optoma HD131XE would allow a smaller screen as small as 84". The Optoma HD141X can go as small as 92".
Third, you haven't mentioned how you intend to mount the projector "at the rear wall". When somebody says this, they usually are thinking they can set the projector upright on a shelf or cabinet at the rear wall. This may work well for you, since you will have the projected image above the height of your head when seated. If you were planning on setting the projector up high near the ceiling, then these projectors need to be mounted upside down, either attached to the underside of a shelf or hung from a mount attached to the ceiling or wall. You should also note that these projectors all require the lens be EXACTLY in the center of the projected image -- there is no adjustment to move the image sideways without causing focus and trapezoid problems with the image. So if the doorway is on the back wall and you were thinking of setting the projector on a cabinet off to the side of the doorway, that may not work.