Step 2: Plan Your Cuts, Buy Supplies
I bought pieces of 1"x3" for my frame. I highly suggest using Poplar wood. Make sure and look at each piece length-wise to make sure they're all straight. Plan to have enough for some corner supports.
If you already have your paint color picked out, you might as well buy it at the same time.
--Make sure to get some Primer Paint if you don't already have some as you will be needing some for the first 2-3 coats--
Cloth supplies: You want something like a canvas material for the screen and some black non-reflective material (thick is preferable) for the border.
I went to Walmart for the cloth. Any fabric store will do. Make sure and check the discount bin first. Also, talk to a worker. I described what I was looking for (a smooth canvas type material) and the lady found the perfect cloth for me that I would not have found. It was pretty sturdy/stiff and smooth - not like a potato sack. You may find a material that works better for you than canvas - like the back side of some pleather. The screen material only cost me a $1 per yard (I got about 3 yards worth) and the black material for the border was only $2/yard.
--Make sure to measure the area of the screen PLUS 2 inches for EACH side PLUS about 3"-4" for overlap on EACH side. Remember, you'll be wrapping this around 1"x3" slats and you want leeway on each side--