what size picture with a 6ft throw

I have just moved house, looking to convert the garage into my home cinema.
But with more important things to do first " thats the wife talking". I will have to put it in one of the bedrooms for a year, the only problem is I will only have a 6ft throw with the infocus sp4805, what I need to know is, is it worth me taking it out of the box as I want the biggest picture I can get. In the last house we had the loft converted so screen size was not a problem. So anyone know what size screen I will get with the Infocus sp4805 and a 6ft throw?.

 

www.infocus.com

go to support and there is a throw calculator for all there projectors

 

According to Projector Centrals website, a 6' throw on max zoom would give a 47" diagonal or 41" wide image.

 

use this useful tool!:

http://www.projectorcentral.com/projection-calculator-pro.cfm