100" Projector Screen for $15

To be perfectly clear about this screen, It is a fantastic alternative to buying a screen for $300.  This was my "bandaid" screen until I get a real screen, but I'm perfectly happy with it.   Real ones reflect back from the crystals.  This isn't that.
- I had to cut mine down a few inches so it's not 100" now.  An aspect ratio thing.

I've been using a projector for a few years now.  Projecting always looks bad on bed sheets, 40" press paper, wax paper +++.  I needed something big, cheap, and light.  My first attempt was with a 4x3' .25" plywood that was super heavy and expensive.  Here is what I did and how I did it and I'll go through the easy steps.  The only time consuming part is the painting

Here is a list of what you will need.
1.  Make sure to use latex as I first tried some Krylon spray paint and it melted the foam. One quart of Behr "Silver Screen" (light gray - yes light gray)- It's normal paint. If you can get a better deal on another brand just use the paint chip to have them match it.  Buy flat or eggshell.  No semi-gloss or gloss.  Using matte/ flat hides most imperfections.

2.  One, 4' x 8' x 1" sheet of Pink Panther (or other?)  insulation . 

3. optional - Four, 1/2" x 2.5" bolts , 8 nuts and 8 big washers. (see "Hanging It" section)

If anyone does this will you post a picture on this instructable?  I'd love to see it, and see what you changed.

Step 1 Lights On

As a frame of reference, see the picture with the lights on. Mine is angled as it's in the corner.  It's also angleled down as my projector is on my desk.  Everyone mounts it differently so disregard this. The picures are more to show the scale rather than how i mounted it. 
Also I included the red LEDs as well. People asked about it, but it has nothing to do with the screen other than its in back of it.

Comments

[kokla]

Great improvements to the instructions. This is an awesome alternative and a cheap solution for a low budget arthouse cinema screen.

I'll be staying updated.

The rigid foam insulation is also called polyurethane rigid foam if anyone has trouble finding it in other countries.Many building contractors will now where/who to go to find this material. We sure don't have them at 'home depot' in NZ!

Good job!